Page 1 International Technical Support Organization GG24-4370-00 8260 Multiprotocol Intelligent Switching Hub May 1995...
Page 3 IBML International Technical Support Organization GG24-4370-00 8260 Multiprotocol Intelligent Switching Hub May 1995...
Page 4 P.O. Box 12195 Research Triangle Park, NC 27709-2195 When you send information to IBM, you grant IBM a non-exclusive right to use or distribute the information in any way it believes appropriate without incurring any obligation to you. Copyright International Business Machines Corporation 1995. All rights reserved.
Page 5 Abstract This document describes the IBM 8260 Multiprotocol Intelligent Hub. It provides information about the 8260 architecture as well as how to install, configure and manage the 8260 Ethernet and token-ring media modules. This document was written for customers, systems engineers, network professionals and technical support personnel.
Page 6 8260 Multiprotocol Intelligent Switching Hub...
Page 7: Table Of Contents
........Chapter 1. An Overview of the IBM 8260 Hub .
Page 8 4.4.1 Ethernet MAC Daughter Card (E-MAC) ....4.4.2 Token-Ring MAC Daughter Card (T-MAC) ....4.5 Managing 8260 Using DMM and 8250 xMM .
Page 9 8.4 Jitter Attenuator Daughter Card (JADC) ....8.5 Passive Port Technology ......8.6 Active Port Technology .
Page 10 10.6.3 SHOW COUNTER Command for Ethernet Networks ..10.6.4 Collecting and Displaying RMON Groups Using E-MAC ..10.6.5 SHOW COUNTER Command for Token-Ring Networks ..10.6.6 Collecting and Displaying RMON Groups Using T-MAC .
Page 11 Figures IBM 8260 Model 017 ....... Components of the 8250 Adapter Kit .
Page 12 Installing 8260 Modules in an 8260 Not Managed by DMM ..Installing 8250 Modules in an 8260 Managed by DMM ... Installing 8250 Modules in an 8260 Not Managed by DMM .
Page 13 106. Trunk Wrapping in Active Per-Port Switching Module ..107. Trunk Wrapping in Active Per-Port Switching Module ..108. Front View of 18-Port Active Per-Port Switching Module .
Page 14 161. LMS IP Panel ........162. LMS IP Port Address Table Panel .
Page 15 ....Power Requirements for 8250 FDDI Modules ....xiii Copyright IBM Corp. 1995...
Page 16 8260 Multiprotocol Intelligent Switching Hub...
Page 17: Special Notices
Any reference to an IBM product, program, or service is not intended to state or imply that only IBM s product, program, or service may be used. Any functionally equivalent program that does not infringe any of IBM s intellectual property rights may be used instead of the IBM product, program or service.
Page 18 The following terms in this publication, are trademarks of other companies: Windows is a trademark of Microsoft Corporation. PC Direct is a trademark of Ziff Communications Company and is used by IBM Corporation under license. UNIX is a registered trademark in the United States and other countries licensed exclusively through X/Open Company Limited.
Page 19: How This Document Is Organized
Preface This document is intended to assist customers and IBM system engineers to implement local area networks based on the IBM 8260 Multiprotocol Intelligent Switching Hub. It contains description of the 8260 architecture as well as information about how to install, configure and manage the the 8260 Ethernet and token-ring modules.
Page 20: Related Publications
TOOLS SENDTO WTSCPOK TOOLS REDBOOKS GET REDBOOKS CATALOG How to Order ITSO Technical Bulletins (Redbooks) IBM employees in the USA may order ITSO books and CD-ROMs using PUBORDER. Customers in the USA may order by calling 1-800-879-2755 or by faxing 1-800-284-4721. Visa and Master Cards are accepted. Outside the USA, customers should contact their IBM branch office.
Page 21 Shawn Walsh International Technical Support Organization, Raleigh Center Haissam Alaiwan 8260 Product Planner, La Gaude Theodore A. Makranczy IBM Education and Training, USA James J. Haefele IBM Education and Training, USA Benton R. Hobgood IBM 8260 Development, RTP Bradley S. Trubey IBM 8260 Development, RTP Victoria S.
Page 22 8260 Multiprotocol Intelligent Switching Hub...
Page 23: Chapter 1. An Overview Of The Ibm 8260 Hub
Chapter 1. An Overview of the IBM 8260 Hub This chapter is an introduction to the IBM 8260 Multiprotocol Intelligent Switching Hub. It is intended to provide the reader with an overview of the following: Hardware description Backplane architecture Fault-tolerant power subsystem...
Page 24 One power supply One power supply bay cover One AC power cord Three fan units One cable tray One rack mount kit One rubber feet kit Six blank dual-slot filler plates Three blank single-slot filler plates Additionally, you can order the following features to be included in your 8260: Up to three additional power supplies for 8260 Model 017 and Model 17 A or up to two additional power supplies for the 8260 Model 010.
Page 25: Hardware Description
ShuntBus - Allows you to configure the following: Two Ethernet segments and 10 token-ring segments (or 4 FDDI segments) The Enhanced TriChannel and the ShuntBus are fully described in Chapter 2, “Backplane Architecture” on page 13. Chapter 1. An Overview of the IBM 8260 Hub...
Page 26: Ibm 8260 Model
Figure 1. IBM 8260 Model 017 1.2.1.2 Payload Area The payload area provides the housing for 17 media and management modules. In addition to the 8260 module, you may install all the 8250 modules (except the Controller module) in an 8260. Once these modules are installed on the 8260, they will be connected to the backplane.
Page 27: Components Of The 8250 Adapter Kit
The components of the 8250 adapter kit are shown in Figure 2. Figure 2. Components of the 8250 Adapter Kit Table 1 on page 6 shows the quantity of each component for the various 8250 adapter kits: Chapter 1. An Overview of the IBM 8260 Hub...
Page 28: Components Of The 8250 Adapter Kit For 8260
Table 1. Components of the 8250 Adapter Kit for 8260 Adapter kit Component 4-slot Feature 9-slot Feature 16-slot Feature Left Boundary Adapter Right Boundary Adapter Dual-Slot Top Filler Single-Slot Top Filler Dual-Slot Module Ejector Blocks 8250 Module Blank Faceplate 1.2.1.3 Fault-Tolerant Controller Module Slots The Controller module provides all the clocking signals for the 8260.
Page 29: The Intelligent Cooling Subsystem
It allows up to three power supplies, rather than four. The basic 8260 Model 010 is shipped with a single power supply, and up to two additional power supplies can be added later. The same power supplies are used on both models. Chapter 1. An Overview of the IBM 8260 Hub...
Page 30: Modules And Daughter Cards
Model 017s and Model 010s without an overhead for managing accessories and spare parts. Note In the remainder of this book, the various components of the IBM 8260 are explained assuming an 8260 Model 017. 1.3 8260 Modules and Daughter Cards This section will give an overview of currently available 8260 modules and daughter cards and a brief description of them.
Page 31: Token-Ring Modules
STP and UTP cabling. Ports 17 and 18 on this module can optionally be configured to act as fully repeated RI/RO trunk ports. Chapter 1. An Overview of the IBM 8260 Hub...
Page 32: Management And Controller Modules
1.3.2.2 8260 TR 18 Port Active Module Switching Module The 8260 TR 18 Port Active Module Switching module is a single-slot module which provides attachment of up to 18 workstations to one of the 10 token-ring segments on the ShuntBus using both STP and UTP cables. This module provides active re-timing and regeneration of the signal on every port.
Page 33 1.3.3.4 8260 Token-Ring Media Access Daughter Card (T-MAC) The T-MAC daughter card allows you to gather statistics for the network to which it is assigned. It can be mounted on any 8260 token-ring media module. Chapter 1. An Overview of the IBM 8260 Hub...
Page 34 8260 Multiprotocol Intelligent Switching Hub...
Page 35: Chapter 2. Backplane Architecture
For detailed information about the permitted configurations in a mixed protocol environment please refer to 2.5, “Network Allocations on the 8260 Backplane” on page 23. Figure 3 on page 14 provides an overview of the Enhanced TriChannel bus. Copyright IBM Corp. 1995...
Page 36: Enhanced Trichannel Bus
Figure 3. Enhanced TriChannel Bus The number of pins available for user traffic on the ShuntBus is 72 pins. These pins are used to set up 2 dedicated Ethernet segments as well as 10 token-ring (or 4 FDDI) segments as shown in Figure 4 on page 15. On the ShuntBus, 8 pins out of the 72 network traffic pins are dedicated to be used by two Ethernet segments.
Page 37: Ethernet Segments On The Backplane
Figure 4. 8260 ShuntBus 2.2 Ethernet Segments on the Backplane The 8260 allows you to set up a maximum of 6 Ethernet (ethernet_1 thru 6) segments on the Enhanced TriChannel and two Ethernet segments (ethernet_7 and 8) on the ShuntBus. ethernet_1 thru 3 can consist of 8250 and/or 8260 Ethernet modules, whereas ethernet_4 thru 8 can consist of 8260 Ethernet modules only.
Page 38: Backplane Path Display For Ethernet Segments
SET MODULE {slot.sublsot} NETWORK {ethernet_n} or SET PORT {slot.port} NETWORK {ethernet_n} Before assigning the port or module to a network you may use the following management command to display the availability of the Ethernet segments on the Enhanced TriChannel and the ShuntBus: SHOW BACKPLANE_PATHS ETHERNET An example of the output from this command is shown in Figure 5.
Page 39: Ethernet Pins On The 8260 Backplane
segments ethernet_4, ethernet_5 and ethernet_6 on the Enhanced TriChannel and ethernet_7 and ethernet_8 on the ShuntBus. Method 2: This method also uses 14 pins on the backplane to set up an Ethernet segment. In this method, each module attached to that Ethernet segment will use digital collision detection identical to that used in method 1.
Page 40 Table 2 (Page 2 of 2). Ethernet Pins on the 8260 Backplane Description Method 1 Method 2 Method 3 Slot ID bit 3 Slot ID bit 4 (msb) Serial ID The following is a brief description of the use of each of the pins in an Ethernet segment on the 8260 backplanes: Data enable signal : When this signal is active, data on the backplane is valid and the modules...
Page 41: Digital Collision Detection
This pin is used to provide a means of detecting collisions of the segments using method 3. Analog collision detection is described in 2.2.2, “Analog Collision Detection” on page 19. 2.2.1 Digital Collision Detection Collision detection on the backplane (for methods 1 and 2) is done by using slot-id information transmitted on the backplane.
Page 42: Token-Ring Backplane Path Display
Data-in Clock-in Data-out Clock-out When you assign an 8250 token-ring module to one of the token-ring networks on the Enhanced TriChannel (tr_8250_1 through tr_8250_7) using the following command: SET MODULE {slot.sublsot} NETWORK {token_ring_n} The 8260 will automatically allocate one of the available token-ring paths to this module.
Page 43: Shuntbus And Token-Ring
the token-ring paths marked as available are the parts of the Enhanced TriChannel that are not currently used by any type of network. On the ShuntBus, in addition to the two dedicated Ethernet segments, there are 10 token-ring segments. Unlike, the Enhanced TriChannel, there is no concept of token-ring paths on the ShuntBus.
Page 44: Fddi Segments On The Backplane
FDDI segments. However, this is a theoretical limitation for the time being, as currently IBM is not offering any 8260 FDDI modules. 2.4 FDDI Segments on the Backplane The 8260 allows you to set up a maximum of 4 FDDI segments on the Enhanced TriChannel using the 8250 modules.
Page 45: Network Allocations On The 8260 Backplane
An example of the output from this command is shown in Figure 8 on page 23. 8260> show backplane_paths fddi Physical Path Logical Network --------------- --------------- FDDI_PATH_8250_1 in use FDDI_PATH_8250_2 in use FDDI_PATH_8250_3 in use FDDI_PATH_8250_4 in use FDDI_PATH_8250_5 in use FDDI_PATH_8250_6 in use FDDI_PATH_8250_7...
Page 46: Trichannel Backplane Network Allocation
Any module can plug into any slot and all allocation of modules to networks or channels, regardless of whether they are TriChannel or Shunt Bus, is done by electronic switching (via DIP switches on the modules or management module commands). Figure 9 shows the Enhanced TriChannel network allocation and how the mixing of various network types affect the availability of the others.
Page 47: Shuntbus Backplane Network Allocation
Using Figure 10 on page 25 you can see that if, for example, fddi_1 network on the ShuntBus is used, it eliminates token_ring_1, token_ring_2 and token_ring_3. Also, you can see that the use of Ethernet segments ethernet_7 and ethernet_8 have no affect on the availability of token-ring and FDDI segments. Figure 10.
Page 48: Management Buses
Figure 11. The Backplane Relationship between TriChannel and ShuntBus 2.5.1 Management Buses It was mentioned earlier that 42 of the 96 pins on the TriChannel Backplane are reserved for non-data traffic. Included in these pins are the Management LAN (MLAN) and the Serial Control Interface (SCI). 2.5.1.1 The Management LAN (MLAN) The MLAN is a dedicated 10 Mbps Ethernet bus which connects the DMM (Distributed Management Module) and all the Media Access Control daughter...
Page 49: Management Buses
the MAC daughter card is accessed by the upper layer protocol stacks within the DMM (SNMP, Telnet) through the MLAN. The E-MAC can be installed on either the EC-DMM or the 8260 media modules. When installed on the 8260 media modules, E-MAC can collect statistics about all the Ethernet segments on the backplane, but will not be able to collect per-port or per-module statistics for the 8250 modules which are on Ethernet_1, 2 and 3.
Page 50 8260 Multiprotocol Intelligent Switching Hub...
Page 51: Chapter 3. 8260 Fault Tolerant Controller Module
More details about the intelligent power subsystem and the role the controller module plays in managing the power for the hub is found in Chapter 5, “8260 Intelligent Power Management Subsystem” on page 73. Copyright IBM Corp. 1995...
Page 52: The Controller Module Front Panel
3.1.1 The Controller Module Front Panel Figure 13. Front View of the Controller Module Figure 13 shows the front view of the controller module. Besides the hub reset and the LED test buttons, the controller module has 10 LEDs covering the 4 power supplies, 3 fans, active or standby mode and temperature on the front panel which indicate the state of the system environment.
Page 53: Controller Module Led Meaning
Table 3. 8260 controller Module LED Meaning STATE Description Power Supply (1-4) Power supply not present Power supply operational Flashing Power supply faulty Fan (1-3) LED has failed FAN operational Flashing FAN faulty Temperature Normal Temp Flashing Temperature exceeds limit Active Controller module is in the standby mode...
Page 54: Controller Module Fault Tolerance
3.1.2 Controller Module Fault Tolerance There are two dedicated slots, 18 and 19, provided for installing the controller module. Once installed, the controller does not need to be configured. Since the controller module is a critical component, it is recommended to have a second controller module installed in the hub for backup purposes.
Page 55: Fault Tolerant Controller Module Considerations
3.1.4 8260 Fault Tolerant Controller Module Considerations Up to two controller modules can be installed in the 8260 hub. Neither controller module occupies a payload slot. When 2 modules are installed, one is active and the other is standby. The hub reset button is only active on the active controller module. The LED test button is active on both active and standby controller modules.
Page 56 8260 Multiprotocol Intelligent Switching Hub...
Page 57: Chapter 4. 8260 Distributed Management Architecture
DMM. There are two types of daughter cards: Ethernet Medium Access Carrier (E-MAC) daughter card Token-ring Medium Access Carrier (T-MAC) daughter card Copyright IBM Corp. 1995...
Page 58 These daughter cards provide the following two functions: Interface to the backplane segments To be able to communicate with devices attached to any of the backplane segments, DMM requires an interface to that segment. The interface to the Ethernet segments on the backplane is provided to DMM via E-MAC, whereas T-MAC allows DMM to interface with the token-ring segments on the ShuntBus.
Page 59: Management Schematic
Figure 14. Management Schematic The DMM (and daughter cards) provide management and control facilities in the following areas: Configuration The DMM, networks, modules, and port settings can be configured through the DMM using DMM commands. The DMM can be used to configure 8250 as well as 8260 modules.
Page 60: Ip Addressing For Dmm
In a Simple Network Management Protocol (SNMP) managed environment the DMM acts as the SNMP agent, responding to SNMP requests and generating SNMP traps. Telnet support Using Telnet you can log in remotely to any DMM on the network and manage it from the remote station.
Page 61: The Distributed Management Module (Dmm)
4.2 The Distributed Management Module (DMM) The stand-alone DMM is a single-slot management module that has no facility for carrying daughter cards. The DMM has 1 module status LED, a 4-character display with a display control toggle button and 2 serial port connectors as shown in Figure 15. Figure 15.
Page 62: Dmm Led Indicators
Caution As always, great care should be taken when handling logic cards. The level of static electricity that can build up in the human body can be thousands of times greater than the very small switching voltage used in logic cards. An analogy would be connecting your Hi-Fi or TV set to 10,000 volts.
Page 63: Console And Auxiliary Ports
Table 4. DMM Status LED Color State Indicates name Status Green Power off or module failure Power on and software functioning properly Blinking Power on but diagnostics have failed The LCD display and display control button are used to: Display the current operating state of the module Determine the network assignment of ports and 8260 modules in the hub Display the version of the DMM microcode The LCD display normally shows the module operating state.
Page 64: Auxiliary Port Pinouts
The lower port is the auxiliary port and can be jumpered for RS-232 or RS-423 operation. This port allows you to attach a terminal locally (or via modem) to DMM. Note: The default is RS-232. See Table 7 on page 42 for the pinout of the cables used for attaching terminals to the auxiliary port.
Page 65: Configuring The Dmm
proper modem operation. See 4.2.4.3, “Configuring Terminal Settings for DMM” on page 47 for description of Set Terminal Hangup command. 4.2.4 Configuring the DMM The following table is a quick reference to the tasks required to configure the DMM interface. Table 9.
Page 66: Dmm Login Message
Table 10 (Page 2 of 2). DMM Terminal Defaults and Options Parameter Factory Options Default Stop Bits 1 or 2 Once the terminal has been configured press the Enter key. If the terminal has been configured correctly the following message should be displayed: 8260A Distributed Management Module (v2.10-H) Login:...
Page 67: Changing Superuser Password
8260A> set login password Enter current session password for user system Enter new password: Verify - re-enter password: User password changed. 8260A> Figure 18. Changing Superuser Password Note: DMM passwords are case sensitive. You may define new login names with user, administrator and superuser authority.
Page 68: Display Of Defined Dmm Users
8260A> show login Login Table: Index Login Name Access Active Sessions ----- --------------- -------------- --------------- system Super User shabani Super User admin1 Administrator user1 User “not used“ “not used“ “not used“ “not used“ “not used“ “not used“ Active Login Sessions: Login Name Session Type Session Time...
Page 69: Forced Termination Of Existing Dmm Users
Login: Login: system Password: A user with Super User or Administrator Access is already logged in. You are being logged in with User Access ... Welcome to user service on 8260A. 8260A> set login access super_user Super_user access granted. 8260A> Figure 21.
Page 70 Note: The baud rate specified in this command must match the settings of your terminal; otherwise, after issuing this command, the communication between the terminal and DMM will be lost. In that case, you must change the setting of your terminal before you can reestablish the communication.
Page 71 In this example, 9.67.46.3 is the address of the TCP/IP station attached to the DMM port. To use SLIP, you must also perform the following tasks: 1. Assign an IP address to D M M for communication over the SLIP interface.
Page 72: Output From Show Terminal Command
This option is very useful in identifying the DMM to which you are logged in. The default prompt is It is recommended that you use the same ID for both the terminal prompt and the DMM device name. See 4.2.4.4, “ Configuring DMM Device”...
Page 73: Set Device Name Command For Dmm
This command sets the clock to 3:45 p.m., Thursday, Jan 19th, 1995. The clock is driven by an internal battery which is designed to last for 10 years. Set Device This command allows you to configure the following for DMM: Device name This command allows you to configure a name for DMM.
Page 74: Output From Show Arp_Cache Command With Canonical Setting
The factory default is for the DMM to run through a full set of diagnostics each time it is rebooted. By using the following command you can make the DMM bypass the diagnostics and boot up faster: 8260A> set device diagnostics disable MAC address order In general, Ethernet devices uses canonical address format, whereas token-ring devices use a non-canonical address format.
Page 75 You can configure DMM to force a mastership election when it is inserted into a hub. This option may be used to ensure that the DMM gets the opportunity to obtain the appropriate authority after it is removed and inserted back into the hub. The command to enable the forcing of mastership is as follows: 8260A>...
Page 76: Output From Show Device Command
8260A> show device An example of the output from this command is shown in Figure 28. 8260A> show device IBM 8260 Distributed Management Module (DMM) v2.10-H pSOS+ SNMP Name: 8260A Location: ITSO LAB, Building 657, Raleigh For assistance contact: Mohammad Shabani, 301-2339 Operational Version: v2.10-H...
Page 77: Output From Show Ip Command
For example, to assign a default gateway of 9.67.46.238 to the token_ring_10 segment on the ShuntBus, you must use the following command: 8260A> set ip default_gateway 9.67.46.238 token_ring_10 Note that DMM will use the IP address assigned to a segment to communicate through that segment.
Page 78 3. After configuring the IP address(es) for DMM, you must assign an E-MAC or T-MAC to any backplane through which the DMM is going to communicate using IP. For information about how to assign E-MAC or T-MAC to a backplane segment, please refer to 4.4, “MAC Daughter Cards” on page 61. 4.2.4.6 Configuring DMM SNMP Parameters The DMM acts as an agent in an SNMP managed environment, enabling you to manage the 8260 using an SNMP manager.
Page 79: Output From Show Community Command
8260A> show community Index Community Name IP Address Access ----- -------------------- --------------- ------ 1 public ***.***.***.*** Read-Only 2 public 9.24.104.23 3 public 9.24.104.70 4 public 9.67.46.45 5 [empty] 6 [empty] 7 [empty] 8 [empty] 9 [empty] 10 [empty] 8260A> Figure 30. Output from Show Community Command You can clear entries from the community table using the following command: 8260A>...
Page 80: The Ec-Dmm (Ethernet Carrier - Distributed Management Module)
8260A> set alert port_up_down {enable|disable|filter} If you enable this option, all the port up and port down traps will be sent to the local console. “disable,” prevents the traps from being displayed on the local console. “filter” allows DMM to check the ALERT_FILTER setting for each port for displaying/suppressing the port up and port down alters.
Page 81: Installing The Ec-Dmm
Figure 31. EC-DMM Front Panel 4.3.1 Installing the EC-DMM Remove the card from its shipping container and check it for damage. There are 2 jumper blocks that may need to be changed, JP8 and JP9. These jumpers are shown in Figure 32 on page 60. These jumpers allow you to set the auxiliary DB-9 connector to RS-232 or RS-423.
Page 82: Ec-Dmm Led Description
Figure 32. Jumpering for the EC-DMM DB-9 Ports Holding the DMM by the faceplate, slide it into the slot in the 8260. Like all 8260 modules it can be hot plugged. If the EC-DMM has been installed correctly and is functioning the status LED should come on.
Page 83: Mac Daughter Cards
Ethernet media module in slot 2 will also turn on to indicate those ports have been assigned to Ethernet_1. If there were more media modules with ports assigned to Ethernet_1 their port LEDs would also turn on. Because Ethernet_2, 3 and 4 are not being used, the next time the button is pressed the LCD display will jump to E5 the DMM network status LED for Ethernet 5 will turn on and the LEDs for ports 15, 16 and 17 on the 8260 Ethernet media module in slot 4 will...
Page 84: Port Ethernet Module With E-Mac
daughter card to an isolated segment on a media module, the MAC daughter card must be installed on that media module. Note E-MACs installed on EC-DMM can collect detailed statistical information about all the ShuntBus and Enhanced TriChannel Ethernet segments. This statistical information includes network as well as module and port level information.
Page 85: Ec-Dmm Slots And Subslots
3. The stand-alone D M M is always considered to be on the first subslot of the slot in which the stand-alone DMM is installed. Note that a stand-alone DMM does not have the housing for a MAC daughter card. 4.
Page 86: Ethernet Mac Daughter Card (E-Mac)
4.4.1 Ethernet MAC Daughter Card (E-MAC) E-MAC is a MAC daughter card which can be installed on an EC-DMM or Ethernet media modules. Figure 36 shows how you can install up to 6 E-MACs on a single EC-DMM. Figure 36. EC-DMM with Up to 6 EMACs In addition to the DMM with an interface to the network, E-MAC allows you to collect statistics about the Ethernet segment to which it is attached.
Page 87: Assigning E-Mac To A Segment With An Active E-Mac
2. Use the following command to set an appropriate mode for the network interface on the E-MAC: 8260A> set module 2.2 interface {enable|disable|standby} The valid options for this command are: Enable This option allows the network interface on the E-MAC to be activated automatically when attached to a backplane segments.
Page 88: Token-Ring Mac Daughter Card (T-Mac)
In this example, the E-MAC is installed in the first subslot of the EC-DMM which is installed in slot 1 of the 8260. The output from this command is shown in Figure 38 on page 66. 8260A> show module 2.2 verbose Slot Module Version Network General Information...
Page 89 2. If you are planning to use LAAs within your network, use the following example to assign a locally administered address to T-MAC: 8260A> set module 6.2 locally_administered_address 40-00-00-82-60-a1 Note that assigning a locally administered address to T-MAC, does not result in the T-MAC using the assigned address automatically.
Page 90: Assigning T-Mac To A Segment With An Active T-Mac
T-MACs attached to the same segment and want one of them to act as a backup for the active T-MAC. 6. Assign the T-MAC to the desired segment using the following example: 8260A> set module 6.2 network token_ring_10 If you try to assign a T-MAC with enabled interface to a segment which already has an active T-MAC, your command will be rejected as shown in Figure 39.
Page 91: Managing 8260 Using Dmm And 8250 Xmm
8260A> show module 6.2 verbose Slot Module Version Network General Information ----- --------------- ------- ------------- ------------------- 06.02 T-MAC v2.00 TOKEN_RING_10 T-MAC: Token Ring Network Monitor Card Boot Version: v2.00 IP Address: 9.67.46.235 Subnetwork Mask: ff.ff.ff.f0 Default Gateway: 9.67.46.238 Station Address: 10-00-f1-0b-09-5f Locally Administered Address: 40-00-00-82-60-a1...
Page 92: Managing 8260 With Dmm
4.5.1 Managing 8260 with DMM The following is the summary of the capabilities of DMM when managing an 8260 which is populated with both 8260 and 8250 modules: 1. DMM can be used to fully configure the 8260 modules as well as the 8250. 2.
Page 93: Overview Of Management And Control Commands
segment. If multiple 8250 networks need to be monitored simultaneously then each network requires its own 8250 xMM. 8. The two previous points mean that the more monitoring required on 8250 networks the fewer payload slots are available for media modules. 9.
Page 94 8260 Multiprotocol Intelligent Switching Hub...
Page 95: Chapter 5. 8260 Intelligent Power Management Subsystem
Ensure that the newly installed 8260 modules will be powered up only if there is enough available power in the 8260 to operate them. The following sections are intended to provide detailed information about the various aspects of the intelligent power management in the 8260. Copyright IBM Corp. 1995...
Page 96: Power Class
Figure 42. 8260 with 4 Power Supplies 5.2 Power Class Power class can be considered as a power priority which ranges from 1 to 10. 10 is the highest priority and 1 is the lowest priority. You may may set the power class for each 8260 module using the following management module command: SET POWER SLOT {slot} CLASS {1 to 10} In the event of failure of one or more power supplies which results in power...
Page 97: Set Power Class Command For 8250 Modules
with slot 1 to 17. The Controller module will repeat this process for all other power classes in descending order of their priority until either all the modules are powered up or the available power supply is exhausted. Note: You cannot assign a power class to the 8250 modules and they do not take part in the power management.
Page 98: Configuring 8260 Power Supplies
8260> show power slot all Power Management Information ---------------------------- Slot Power Information: Slot Class Admin Status Operating Status ---- ----- ------------ ---------------- ENABLE ENABLED ENABLE ENABLED ENABLE ENABLED ENABLE ENABLED ENABLE ENABLED ENABLE ENABLED ENABLE ENABLED ENABLE ENABLED ENABLE ENABLED ENABLE ENABLED ENABLE...
Page 99: Output From Show Hub Command
Hub Information: Hub Type: 58G5801 Backplane Information: Backplane Type Revision -------------- -------- Load-Sharing Power Distribution Board Enhanced TriChannel Backplane Ring Backplane Power Supply Information: Power Supply Status Model Number ------------ ------ ------------ OKAY 6000PS OKAY 6000PS OKAY 6000PS REMOVED Temperature Information: Probe Location Temperature...
Page 100: Output From Show Power Budget Command
8260> show power budget Power Management Information ---------------------------- Hub Power Budget : Voltage Type Voltage Level Watts Capacity Watts Available Watts Consumed ------------ ------------- -------------- --------------- -------- 5.196 551.00 287.00 264.00 -5.056 38.25 34.00 4.25 +12V 12.122 122.50 77.00 45.50 -12V -12.150 46.00...
Page 101: Output From Show Power Mode Command
Note: If a power supply fails and there is still enough power in the hub to operate all the installed modules, the modules will continue their operation without any interruption. You can configure your 8260 to operate in non-fault-tolerant mode using the following DMM command: SET POWER MODE non_fault_tolerant The current power mode setting for your 8260 can be displayed using the...
Page 102: Load Sharing Power Supplies
Table 14 (Page 2 of 2). Power Available to Modules in Fault Tolerant Mode Output One Power Two Power Three Power Four Power Voltage Supply Supplies Supplies Supplies -12.0 V 18.00 W 30.50 W 46.00 W Totals 293.40 W 520.30 W 779.15 W In fault-tolerant mode the 8260 does not reserve any specific power supply in reserve;...
Page 103: Managing Power In The 8260
5.4 Managing Power in the 8260 The 8260 fault-tolerant Controller module provides extensive power management functions for the 8260 and all its installed modules. However, the capabilities of the Controller module are enhanced via the power management facilities offered by DMM. The following sections examine the impact of DMM on managing the 8260.
Page 104: Output From Show Inventory Command
8260> 8260> show inventory HUB/ Hardware Slot Module Version Serial # Vendor Date ----- ---------------- -------- ---------------- ---------------- ------ 58G5801 H8048 940313 01.01 1 EC-DMM 1.0 1067067 940421 02.01 1 E24PS-6/8 1002683 940302 02.02 E-MAC 1066450 940409 03.01 6706I-E XB26 Retix/Chip 042494 05.01 T20MS...
Page 105: Installing 8260 Module In An 8260 Not Managed By Dmm
Figure 51. Installing 8260 Modules in an 8260 Managed by D M M 5.4.2 Installing 8260 Module in an 8260 Not Managed by DMM When a new 8260 module is inserted in the hub and there is no DMM installed in the 8260, the process of powering up the module is identical to what was described above.
Page 106: Installing 8250 Modules In An 8260 Managed By Dmm
2. The 8250 module sends module type information to the Controller module. The Controller module has no information about how much power is consumed by the module at this stage. 3. The Controller module forwards the module type of the newly inserted 8250 module to DMM.
Page 107: Installing 8250 Module In A Hub Not Managed By Dmm
5.4.4 Installing 8250 Module in a Hub Not Managed by DMM When a new 8250 module is inserted in a hub which is not managed by DMM, the process of applying power to the newly installed module is the same as what was described above.
Page 108: Power Management Scenarios
When the hub is in the fault-tolerant mode, the reserved power is reserved across all installed power supplies. It is not an individual power supply out of all installed power supplies. Although a power class does not apply to the 8250 module, the controller will see the 8250 module having the highest power class, 10.
Page 109: Using The Show Hub Command
8260> show hub Hub Information: Hub Type: 58G5801 Power Supply Information: Power Supply Status ------------ ------ NORMAL NORMAL FAULTY REMOVED Temperature Information: Probe Location Temperature ----- -------- ----------- FAN_1 25 Degrees Celsius FAN_2 25 Degrees Celsius FAN_3 25 Degrees Celsius Fan Information: Status ------...
Page 110: Messages Received When The Power Mode Is Changed
system environment is changed and the power status has become non-fault tolerant due to a faulty power supply, as shown below. Message received from this device on 15:47 Mon 23 May 94: Enterprise Specific trap: Environment Change Message Information: Power Supply Status (3): FAULTY 8260>...
Page 111: Installing The 8260 Power Supply
DMM and a 24 PPS Ethernet module) and a number of 8250 modules. Both 8260 modules have a power class of 3 assigned to them. Upon taking one power supply down, we found that since the remaining power was not enough to power all the existing modules, the modules with the lowest power priority (the DMM and 24 PPS modules) were powered down by the Controller module.
Page 112 8260 Multiprotocol Intelligent Switching Hub...
Page 113: Chapter 6. 8260 Intelligent Cooling Subsystem
Each 8260 has three fan units that can be installed or removed while the 8260 hub is operating. These fan units are accessible from the back of the 8260 as shown in Figure 60. Figure 60. 8260 Fan Units Copyright IBM Corp. 1995...
Page 114: Output From Show Hub Command
Each of the three fan units cools an overlapped area in the hub covering 8 slots. The slots covered by each fan unit are: Fan 1 - slots 1-8 Fan 2 - slots 6-13 Fan 3 - slots 10-17 These 3 areas have their own temperature sensors. Also, integrated into each fan unit is a sensor that detects a stopped or slow fan condition.
Page 115: Output From Show Power Mode Command
If a fan unit stops or the temperature in any of the three cooling zones rises above 60 C, the Controller module may, depending on a user configurable parameter (Overheat_Auto_Power_Down) use the SCI bus to power down some of the 8260 modules in the affected cooling zone in order to bring down the temperature to an acceptable level.
Page 116: Cooling Zones And Power Classes
power class and slot position within the affected cooling zone as shown if Figure 63 on page 94. Figure 63. 8260 Cooling Zones and Power Classes Modules are powered down until the 5 volt power supply consumption is reduced by 50 watts. The temperature is allowed to stabilize for 15 minutes and if the temperature is still too high, all the 8260 modules in the affected zone are powered down.
Page 117: Flow Chart For An Overheat Condition
Figure 64. Flow Chart for an Overheat Condition Chapter 6. 8260 Intelligent Cooling Subsystem...
Page 118 8260 Multiprotocol Intelligent Switching Hub...
Page 119: Chapter 7. 8260 Ethernet Modules
Also, note that you can install and use any 8250 Ethernet module in the 8260 multiprotocol intelligent switching hub. For information about the 8250 Ethernet modules please refer to IBM 8250 Intelligent Hub and IBM HUB Management Program/6000, (GG24-4033) .
Page 120: Frame Size
to 16 times consecutively, after which the station reports a transmission error to the higher layer protocol. The probability of a collision occurring is directly proportional to the number of stations, frequency of transmissions, size of frames, and length of the LAN segment. Under the 802.3 specifications, no station can monopolize the network by sending more data than is allowed.
Page 121: Ethernet 24-Port 10Base-T Module
7.2 8260 Ethernet 24-Port 10Base-T Module The 8260 Ethernet 24-Port 10Base-T Module is a 24-port IEEE 802.3 repeater module that complies with the 10Base-T standard and supports backbone and to-the-desk connectivity over Unshielded Twisted Pair (UTP) cabling. This module provides two 50-pin Telco-type connectors. Each Telco-connector can be connected to an external 12-port harmonica .
Page 122: Equivalent Distances For 24-Port 10Base-T Module
types of modules. For example, you can set a 10Base-T port on an 8260 Ethernet 24-Port 10Base-T Module to be a redundant port for 1 10Base-FB on the 8260 Ethernet 10-Port 10Base-FB Module. Auto-polarity detection You can enable/disable auto-polarity detection for each port on the module. When enabled, this feature will automatically detect if you have erroneously reversed polarity of the cable during its assembly and will resolve the problem by reversing the polarity.
Page 123: Front View Of 24-Port 10Base-T Module
Figure 65. Front View of 24-Port 10Base-T Module Figure 65 shows the front view of the 8260 Ethernet 24-Port 10Base-T Module. As can be seen, the 8260 Ethernet 24-Port 10Base-T Module provides you with LED Indicators on the front panel that allow you to monitor the status of the module and the individual ports.
Page 124: Port 10Base-T Module Side View
Table 16 (Page 2 of 2). 24-Port 10Base-T Module LED Descriptions LED Name Color State Description Activity Yellow Constant activity on the port No packets received on the port Blinking Normal activity on the port Status Green Port enabled and link OK Port disabled.
Page 125: Port 10Base-T Dip Switches
Figure 67. 24-Port 10Base-T DIP Switches The DIP switches let you perform the following: Use DIP switch positions 1 through 4 to assign all the ports on the module to one of the backplane segments or an isolated-1 segment. Note that when using DIP switches, all the ports will be assigned to the same segment, so you cannot do per-port switching when using DIP switches for configuring your the 8260 modules.
Page 126: Configuring The 10Base-T Module
4.2.4.4, “ Configuring DMM Device” on page 50. By default, DIP switch 5 is set to NVRAM. 7.3 10Base-T Module Usage Figure 68 provides an example of the usage of the 8260 Ethernet 24-Port 10Base-T Module. Figure 68. 24-Port 10Base-T Module Usage 7.4 Configuring the 10Base-T Module To configure the 8260 Ethernet 24-Port 10Base-T Module you must do the following:...
Page 127 Enable/disable remote diagnostics The Remote Diagnostics feature allows this module to detect certain unusual failure conditions when used in conjunction with the IBM Fault-Tolerant 10Base-T Transceivers. You can use the following management command to enable/disable remote diagnostics: SET PORT {slot.port} MODE {remote_diagnostics|non_remote_diagnostics}...
Page 128: Ethernet 20/40-Port 10Base-T Module
7.5 8260 Ethernet 20/40-Port 10Base-T Module The 8260 Ethernet 20-Port 10Base-T Module, a single-slot 20-port, and the 8260 Ethernet 40-Port 10Base-T Module, a two-slot 40-port are IEEE 802.3 repeater modules that comply with the 10Base-T standard and support backbone and to-the-desk connectivity over Unshielded Twisted Pair (UTP) as well as Shielded Twisted Pair (STP) cabling.
Page 129: Equivalent Distances For 20/40 10Base-T Modules
Support for port redundancy You can set up redundancy between two links on the same module or two different modules. Note that port redundancy is supported between different types of modules. For example, you can set a 10Base-T port on an 8260 Ethernet 20-Port 10Base-T Module to be a redundant port for a port on an 8260 Ethernet 10-Port 10Base-FB Module.
Page 130: Front View Of 20/40-Port 10Base-T Modules
Figure 69. Front View of 20/40-Port 10Base-T Modules Table 19 describes the meaning of these LEDs: Table 19 (Page 1 of 2). 20/40-Port 10Base-T Module LED Descriptions LED Name Color State Description Module Status Green Module powered up OK No Power. Blinking Module failed self diagnostics...
Page 131: Port 10Base-T Module Side View
Table 19 (Page 2 of 2). 20/40-Port 10Base-T Module LED Descriptions LED Name Color State Description Status Green Port enabled and link OK Port disabled. 1 Blink Link failure on the port 2 Blinks Port partitioned Figure 70 shows the side view of the 20/40-port 10Base-T modules. As can be seen, in addition to the 8 isolated segments and the mounting for two E-MACs, there is an 8-position DIP switch located on the module.
Page 132: Port 10Base-T Module Dip Switch Settings
Figure 71. 20/40-Port 10Base-T DIP Switches The DIP switches let you perform the following: Use DIP switch positions 1 through 4 to assign all the ports on the module to one of the backplane segments or an isolated-1 segment. Note that when using DIP switches, all the ports will be assigned to the same segment, so you cannot do per-port switching when using DIP switches for configuring the 8260 modules.
Page 133: Configuring The 20/40-Port 10Base-T Modules
setting) will be sent to the management module. The actions taken by the management module, upon receipt of this information are described in 4.2.4.4, “ Configuring DMM Device” on page 50. By default, DIP switch 5 is set to NVRAM. 7.6 Configuring the 20/40-Port 10Base-T Modules To configure the 20/40-port 10Base-T modules you must do the following: Select network for each port...
Page 134: Maximum Distances For 20/24-Port 10Base-T Modules
Enable/Disable remote Diagnostics The Remote Diagnostics feature allows this module to detect certain unusual failure conditions when used in conjunction with the IBM Fault-Tolerant 10Base-T Transceiver. You can use the following management command to enable/disable remote diagnostics: SET PORT {slot.port} MODE {remote_diagnostics|non_remote_diagnostics}...
Page 135: Ethernet 10-Port 10Base-Fb Module
8250 and/or 8260 10Base-FB modules. However, if you have poor quality cable, splices or many patch panels, you may have to reduce this distance. The workstations connecting to this module should use either the IBM 10Base-FB Transceivers or any transceiver which fully complies with the 802.3 10Base-FB standard.
Page 136: Equivalent Distances For Ethernet 10Base-Fb Module
information about the Ethernet security card, please refer to 7.11, “8260 Ethernet Security Daughter Card” on page 121. Support for port redundancy You can set up redundancy between two links on the same module or two different modules. Note that port redundancy is supported between different types of modules.
Page 137: Front View Of 10-Port 10Base-Fb Module
Figure 72. Front View of 10-Port 10Base-FB Module Figure 72 shows the front view of the 8260 Ethernet 10-Port 10Base-FB Module. As can be seen, the 8260 Ethernet 10-Port 10Base-FB Module provides you with LED indicators on the front panel that allow you to monitor the status of the module and the individual ports.
Page 138: Port 10Base-Fb Module Side View
Table 23 (Page 2 of 2). 10-Port 10Base-FB Module LED Descriptions LED Name Color State Description Activity Yellow Constant activity on the port No packets received on the port Blinking Normal activity on the port Status Green Port enabled and link OK Port disabled.
Page 139: Port 10Base-Fb Dip Switches
Figure 74. 10-Port 10Base-FB DIP Switches The DIP switches let you perform the following: Use DIP switch positions 1 through 4 to assign all the ports on the module to one of the backplane segments or isolated-1 segment. Note that when using DIP switches, all the ports will be assigned to the same segment, so in effect, you cannot do per-port switching.
Page 140: Configuring The 10Base-Fb Module
By default, the module is shipped from the factory with the DIP switches set for Ethernet_1. Use DIP switch position 5 to choose if the module is going to use the Non-Volatile RAM (ON position) or DIP switch settings (OFF position) for its configuration.
Page 141: Configuring Port Redundancy For 8260 Ethernet Modules
Note Using DIP switches on the 8260 Ethernet 10-Port 10Base-FB Module, it is only possible to assign all the ports to the same network. This network can be one of the 8 Ethernet segments on the backplane, or isolated-1. Enable/disable ports Each port on the 8260 Ethernet 10-Port 10Base-FB Module can be enabled/disabled independently from the other ports.
Page 142: 7.10 8260 Ethernet Modules Summary
This command may be used to allow you to monitor the status of the crucial ports on your network while the alerts from the other ports are disabled. Set optical power Each port on this module can be set to operate at high or normal power. When operating at high power mode, the fiber distance between the two modules and the module or the transceiver can be as far as 4000 meters.
Page 143: Ethernet Security Daughter Card
7.11 8260 Ethernet Security Daughter Card The 8260 Ethernet Security Card (E-SEC) is a daughter card that allows you to provide security on any Ethernet network to which this card is attached. You can install this card on any Ethernet media module or the 8260 DMM with Ethernet Carrier (EC-DMM).
Page 144: Operation Of Security Card
ports may have one of these two features enabled and finally the last group of ports which may have no security at all. Details of configuring security features are described in 7.11.2, “Configuring the Security Module” on page 124. 7.11.1 Operation of Security Card When transmitting a packet, the 8260 Ethernet modules will use either method 2 or method 3 as described in 2.2, “Ethernet Segments on the Backplane”...
Page 145 station attached to that port. The transmission of the jammed packet will last the same length of time as the original data packet. Stations that receive a jammed packet will discard it because the CRC (Cyclic Redundancy Check) field of the packet is incorrect.
Page 146: Configuring The Security Module
The entire process of eavesdropping protection takes 32 bit-times from the time the E-SEC card receives the destination address field in the packet. 7.11.2 Configuring the Security Module To be able to use the security module you must perform the following steps: 1.
Page 147: Network Security Address Table
Enable auto-learning for your Ethernet segment using the following example: 8260A> set security network ethernet_3 auto-learning enable Although the port and network auto-learning is enabled, the E-SEC module will not auto-learn MAC addresses attached to each port until you enable the security mode for the segment using the following example: 8260A>...
Page 148 wish the station shown in Figure 78 for this port to be able to access our network. The following command was used to delete this entry: 8260A> set security address_table address 10-00-5a-82-59-32 delete c. Once you are satisfied that the network address table contains all the desired entries, you can save this table on the non-volatile RAM of the E-SEC module using the following command: 8260A>...
Page 149: Ethernet Security Intruder Table
7. The following actions can be performed by the E-SEC card in case of intruder detection: a. Report intrusions by logging information about the intrusion in the intruder table. To enable intruder reporting, you must issue the following command: 8260A> set security network ethernet_3 intruder_reporting enable Note: When you enable intruder reporting only, the intruder will still be able to send data on the network, but an entry will be logged in the intruder table to report the intrusion.
Page 150 and port jamming is enabled. You can use the following example to enable the failsafe feature for each port: 8260A> set security port 2.15 failsafe enable 8260 Multiprotocol Intelligent Switching Hub...
Page 151: Chapter 8. 8260 Token-Ring Support
This eliminates the idle time waiting for the header to reappear. This allows for multiple frames, but only one free token on the LAN. Copyright IBM Corp. 1995...
Page 152: Ring Administration
8.1.2 Ring Administration The token-passing ring protocol provides relatively greater control and management at the medium access control (MAC) level than that provided by the CSMA/CD protocol. All ring administration functions are implemented in the token-ring adapters and the functions are carried out at the MAC level. 8.1.2.1 Active Monitor In each operational ring, one station assumes the role of the active monitor .
Page 153: Ring Errors
ring purge process may be triggered after detecting the loss of a token, frame, or errors caused by adapter-insertion or adapter-removal operations. To purge the ring, the active monitor initiates a Ring Purge MAC frame broadcast and starts the Ring-purge timer. If the Ring Purge MAC frame has not returned to the active monitor when the timer expires, the token-claiming process is initiated.
Page 154: Differential Manchester Coding
8.1.4 Differential Manchester Coding The 802.5 standard specifies that Differential Manchester coding is used for transmitting data on the ring. With this encoding technique, every bit is comprised of a half-bit time signal at a low or high polarity and other half-bit time signal at the opposite polarity.
Page 155: Clock Recovery
The other important point about the Differential Manchester coding is that it uses a higher baud rate (the number of state changes on the transmission media) than the actual data transfer bit rate on the ring, to provide the benefit described above.
Page 156: Backplane Signalling For Tr Segments
the signal passes from one station to another and ultimately can result in loss or corruption of data. This is a major reason for the limit on the maximum number of stations supported on a token-ring networks. Note that this limit varies depending on the speed of the ring and type of lobe cables used in attaching the workstations to the hub.
Page 157: Self-Shorting Relays On The Shuntbus
Figure 81. Self-Shorting Relays on the ShuntBus Once a module is inserted into a slot in the 8260, the ShuntBus connector on the module breaks the shunt on the backplane. It is then the responsibility of the module to restore this connection by using a relay type function. When the module is not configured to connect to a backplane ring, the relay is set such that the backplane shunt is restored.
Page 158: Backplane Signalling For 4 Mbps Operation
Mbps operation is different for the two bit-rates. For 4 Mbps operation, the encoding is straightforward. One of the data-signal shunt pairs (Data_A) carries the Differential Manchester encoded bit stream, whereas there is no signal on the other pair (Data_B). The clock shunt pair carries a synchronous clock which is used to sample the Data_A signal.
Page 159: Backplane Signalling For 16 Mbps Operation
Figure 83. 8260 Backplane Signalling for 16 Mbps Operation Note that the 8260 backplane interface is completely digital , whereas the signals sent on the transmission media (lobe cables and the cabling between two hubs) is said to be analog . In this context an analog signal is one where there is no separate clock signal.
Page 160: Dual Phase Lock Loop
Below is a summary of the Dual PLL concept and its implementation in the 8260. The current IBM token-ring adapters use a Phase Lock Loop (PLL) to derive a clock signal from the incoming data signal, and then use that clock to retransmit the data.
Page 161: Components Of Dual Phase Lock Loop
Figure 84. Components of Dual Phase Lock Loop The reduction in the jitter would allow you to have longer lobe distances and higher number of station per ring segment. More details about the number of supported stations and the lobe cable length are provided in 8.6, “Active Port Technology”...
Page 162: Dpll Implementation On Active Ports
Figure 85. DPLL Implementation on Active Ports Note Since the jitter is removed from the signal before entering the backplane, the signal received from the backplane would only have a small amount of jitter accumulated on the backplane. The signal received from the backplane goes through the narrowband PLL before being transmitted out of the port.
Page 163: Jitter Attenuator Daughter Card (Jadc)
8.4 Jitter Attenuator Daughter Card (JADC) The JADC can be mounted on any 8260 token-ring module and contains a DPLL function. It must be installed on a module under the following circumstances: 1. Your 18-port active module is configured with ports 17 and 18 acting as RI/RO ports and these ports are connected to a non-8260 hub.
Page 164: Passive Port Technology
wideband/wideband configuration when the port is in trunk mode. This is done to ensure that when the ring is reconfigured outside the module, a signal with a lot of accumulated jitter does not hit a wideband/narrowband configuration until it has gone through a JADC to remove the excessive jitter. So, the following is a summary of the differences between the active and passive modules.
Page 165: Per-Port Switching On The Active Modules
3. The signal received from each lobe is converted to a digital form before entering the module. The digital signal on the active modules makes it easy to manipulate the flow of data on a per-port basis allowing IBM to offer active per-port switching modules.
Page 166: Token-Ring Per-Port Switching
backplane rings on the ShuntBus. This enables you to form multiple rings on a single module using this switch fabric. This is shown in Figure 87 on page 144. Figure 87. Token-Ring Per-Port Switching The rings to which the various ports on a per-port switching module can attach may be a mixture of 4 and/or 16 Mbps segments.
Page 167: Static Switch On The Per-Port Switching Modules
Note With the 18-port active per-port switching module the lobe ports can be distributed concurrently across a total of 11 segments which can be a mixture of backplane token-ring segments and isolated segments on the module. However, on the same per-port switching module you cannot allocate an isolated segment number which matches the number of a backplane segment to which other ports on the module are attached.
Page 168: Static Switch Display For Active Per-Port Switching Ports
5. Participation in neighbor notification By participating in the neighbor notification, the station learns the address of its Nearest Active Upstream Neighbor (NAUN). It also identifies itself to nearest active downstream neighbor. 6. Request initialization The station issues a Request Initialization MAC frame which will be sent to the Ring Parameter Server (RPS) functional address.
Page 169: Switching Ports With Enabled Static Switch
SET PORT {slot.port} STATIC_SWITCH {enable|disable} If you try to switch a port with enabled static switch from one segment to another, you will get the an error message. This is shown in Figure 89. 8260> set port 6.1 static_switch enable Port 06.01 static switch set to ENABLED.
Page 170: Signal Flow On The 8260 Token-Ring Modules
Figure 90. Port Switching with Source Routing Bridges 8.7 Signal Flow on the 8260 Token-Ring Modules On the module switching modules (active or passive), the signal flow is predefined on the module basis. That is, the signal which is received from the backplane is always passed to the first active port, then to the next active port, and finally from the last active port to the backplane.
Page 171: Speed Detection
8.8 Speed Detection Speed detection on the 8260 token-ring media modules is achieved in one of two ways depending on the module type. 8.8.1 Speed Detection on Active Modules For the active modules, speed detection is accomplished by counting the number of transitions in the incoming data over a set period of time.
Page 172: Port Display For Token-Ring Passive Ports
If the A and C bits are not set to B the port which just inserted into the ring is assumed to be operating at the wrong speed. The Recovery ASIC will prevent that port from entering the ring and will also unwrap all the wrapped ports allowing the existing stations to resume their access to the ring.
Page 173: Introduction
8.9 Beacon Recovery 8.9.1 Introduction When a station detects a failure of token-claiming following a hard error, it transmits Beacon MAC frames with an all-station address to its ring, pacing them at a specified time interval known as T(transmit_pacing) This process will continue until the input signal is restored, or until this station removes itself from the ring for self-testing, as described below.
Page 174 To ensure that TRMM has an accurate ring map, you must issue the following command for each port that has a MAC-less station (such as token-ring tracing tools) attached to it: SET PORT {slot.port} STATION_TYPE mac_not_present 8250 token-ring modules are shipped from the factory, with mac_present as default, which must be used for normal stations.
Page 175 2. Isolate any new modules that have logical ports on the ring (logical is a port which cannot be disabled such as TRMM or bridge). 3. If the source or destination address in the packet is external to the hub, wait for up to 5 seconds to check if the beaconing can be disabled externally.
Page 176: Show Device Command For Trmm
TRMM V3.0 allows you to enable/disable the beacon recovery function using the following command: SET DEVICE BEACON_RECOVERY {enable|disable} Note that this feature must be enabled during normal operation; however, you may disable this feature as a trouble shooting tool, to prevent the ring from recovering before the faulty device is isolated.
Page 177: Beacon Recovery In The 8260
8.9.3 Beacon Recovery in the 8260 Beacon recovery in the 8260 has been improved by distributing the beacon recovery process to each of the 8260 token-ring media modules (both active and passive). This allows you to manage an 8260 consisting of multiple token-ring segments using a single DMM and protect multiple rings from beacon problems without the need to have one DMM for each segment.
Page 178: Recovery Asic In Per-Port Switching Module
Figure 94. Recovery ASIC in Per-Port Switching Module You can find out the MAC address of the Recovery ASIC on each module by using the following DMM command: SH MODULE {slot.subslot} VERBOSE Figure 95 showsDisplay the output from this command for a 20-port passive token-ring module.
Page 179: Display Output For 18-Port Active Per-Port Switching Module
8260> show module 6.1 verbose Slot Module Version Network General Information ----- --------------- ------- ------------- ------------------- 06.01 T18PSA v1.00 PER_PORT Trunk(s) are down T18PSA: Token Ring Active Port Switching Twisted Pair Module Boot Version: v1.00 Ring Speed Dip Setting: 16 MBPS Jitter Attenuator 1 Status: OKAY Non-Volatile DIP Setting:...
Page 180: Beacon Recovery On The Module Switching Modules
Ring monitors are associated with each port and can be switched from upstream to downstream of that port. When the ring monitor detects a Beacon MAC frame on the ring, it calls in the Recovery ASIC to perform beacon recovery and isolate the faulty port (station).
Page 181: Beacon Recovery On The Per-Port Switching Modules
detect this and will issue Beacon MAC frames. These Beacon MAC frames will be repeated by each station (station D in this case) until they arrive in the DRA in module 1. Upon seeing these Beacon MAC frames, the URA on module 1 will issue Beacon Type 1 MAC frames.
Page 182: Address-To-Port Mapping For Module Switching Modules
Monitor is attached. Once the Recovery ASIC is inserted into that ring, the DRA will be placed downstream of the last port of the module on the beaconing ring. Also, the URA will be inserted into the backup path if ports 17 and 18 are configured as trunk ports.
Page 183: Address-To-Port Map Display For A Module Switching Module
Now, DRA in TR Module 2 starts tracking the stations that are involved in the neighbor notification process. The tracking will stop when the DRA in TR Module 2 encounters an AMP/SMP MAC frame with the A/C bit set to B that is, AMP/SMP MAC frame issued by the NAUN to DRA.
Page 184: Address-To-Port Mapping On Module Switching Modules For Fan-Out
device on that port and therefore, the Recovery ASIC will be able to build the address-to-port map by listening to neighbor notification process as described above. Figure 99. Address-to-port Mapping on Module Switching Modules for Fan-Out Attached Devices Now, let s assume that a second station (station C attaches to the fan-out device.
Page 185: Address-To-Port Map Display For Fan-Out Attached Devices
An example of the ring_map display for a module switching module with an IBM DataGlance attached to port 4 is shown in Figure 101 on page 164. Chapter 8. 8260 Token-Ring Support...
Page 186: Address-To-Port Mapping For Per-Port Switching Modules
8260> show ring_map token_ring logical token_ring_1 Token Ring Logical Map for Network TOKEN_RING_1 MAC Address Slot Port ----------------- ----- ---- 02-00-00-c0-cc-1c 05.01 02-00-00-c0-cc-0a 05.01 02-00-00-e0-9c-10 05.01 08-00-8f-40-01-a6 05.01 00-00-00-00-00-00 05.01 8260> Figure 101. Address-to-Port Map Display for MAC-less Stations 8.11 Address-to-Port Mapping for Per-Port Switching Modules The per-port switching modules take advantage of the Ring Monitor function to build an address-to-port map.
Page 187 2. An AMP/SMP MAC frame with the A/C bit set B is seen. This indicates that there is only one station attached to this port and the address of that station is one which is seen in the AMP/SMP MAC frame with the A/C bit set to B In this case, the AMP/SMP MAC frame sent by the upstream station is copied by the station attached to this port.
Page 188: Ieee 802.5C Recommended Practice For Dual Ring Wrapback Reconfiguration
8260> show ring_map token_ring logical token_ring_2 Token Ring Logical Map for Network TOKEN_RING_2 MAC Address Slot Port ----------------- ----- ---- 02-00-00-e0-9c-10 06.01 02-00-00-c0-cc-68 06.01 00-00-00-00-00-00 06.01 08-00-8f-d0-90-fa 06.02 02-00-00-66-88-8d 06.01 8260> Figure 103. Address-to-Port Map Display for a Per-Port Switching Module Note that in the above display, the module 6.01 is an active per-port switching module and the module 6.02 is a T-MAC installed on this active per-port switching module.
Page 189: Dual-Ring Topology
As illustrated in Figure 104 on page 167, the dual-ring topology consists of two counter-rotating rings that provide interconnection for both dual-ring and single-ring stations. One of the rings is designated as the primary ring and the other ring is designated as the secondary ring . Figure 104.
Page 190: Trunk Wrapping On The Active Per-Port Switching Modules
Figure 105. Wrapback in Dual-Ring Topology 8.12.1 Trunk Wrapping on the Active Per-Port Switching Modules The 18-port active per-port switching module and the 10-port dual fiber repeater module conform to the 802.5C dual-ring reconfiguration practice. When, during the beacon recovery process, it is determined that the fault domain is between RI and RO, the following process takes place: 1.
Page 191: Trunk Wrapping On The Active Module-Switching Modules
Figure 106. Trunk Wrapping in Active Per-Port Switching Module 8.12.2 Trunk Wrapping on the Active Module-Switching Modules When, during the beacon recovery process, it is determined that the fault domain is between RI and RO, the following process takes place: 1.
Page 192: Merge Manager
Note On the 18-port active module switching module, the URA cannot be switched to the backup path. This means that the operation of this module is not IEEE 802.5C conformant. 8.12.3 Merge Manager The function of the Merge Manager is to periodically check RI and RO trunks to see if the cause of the beacon has been resolved and the trunks can be unwrapped.
Page 193 Because these modules do not have switching capabilities, the URA cannot be switched onto the faulty segment. In order to execute the unwrapping tests, the module must wrap the backplane and wrap all the lobe ports. This allows the URA to be on a segment isolated with the trunk under the test. Obviously, this is disruptive to the stations on the module, so it is not desirable to try this every 5 minutes.
Page 194 8260 Multiprotocol Intelligent Switching Hub...
Page 195: Chapter 9. 8260 Token-Ring Modules
8260 token-ring segments consisting of 8260 modules to the token-ring segments consisting of 8250 modules. For information about 8250 Ethernet modules please refer to IBM 8250 Intelligent Hub and IBM HUB Management Program/6000, GG24-4033. 9.2 Configuring Token-Ring Network Parameters...
Page 196: Port Active Per-Port Switching Module
Once the ring speed for the network is set, each port, trunk or module assigned to that network will assume the speed of the network. Enable support for splitters and fan-out devices If you are planning to attach passive modules to a segment and there are splitters and fan-out devices attached to the ports of the passive module, you must issue the following command to ensure that an accurate port-to-address mapping is performed on the network:...
Page 197: Front View Of 18-Port Active Per-Port Switching Module
When ports 17 and 18 are configured as RI/RO ports, they are fully compliant with the IEEE 802.5C (dual-ring recovery) standard. Support for installation of one T-MAC. Support for installation of one Jitter Attenuator daughter card. Figure 108. Front View of 18-Port Active Per-Port Switching Module Figure 108 shows the front view of the 18-port active per-port switching module.
Page 198: Port Active Per-Port Switching Module Side View
Table 28. 18-Port Active Per-Port Switching Module LED Descriptions LED Name Color State Description Module Status Green Module powered up OK No Power Blinking Module failed self diagnostics RI/RO Green Trunk enabled and operating Trunk disabled Blinking Trunk enabled but not operating normally Green JADC card installed and...
Page 199: Configuring The 18-Port Active Per-Port Switching Module
The DIP switches let you perform the following: Use DIP switch positions 1 through 4 to assign all the ports on the module to one of the backplane segments or isolated-1 segment. Note that when using DIP switches, all the ports will be assigned to the same segment, so you cannot do per-port switching when using DIP switches for configuring your 8260 modules.
Page 200: Onboard Lobe/Trunk Jumpers On 18-Port
Active Per-Port Switching Module Figure 110. Onboard Lobe/Trunk Jumpers on 18-Port Note that setting the jumpers to the left selects RI/RO and setting the jumpers to the right selects lobe ports. 2. Set beacon threshold for the module. When a beaconing condition is detected on a port, the port is wrapped by the recovery ASIC.
Page 201 Use the following command to assign each port on the module to one of the backplane segments on the ShuntBus or isolated segments on the module: SET PORT {slot.port} NETWORK {network} 5. Assign RI/RO ports to network segments. If you have configured ports 17 and 18 as RI/RO trunks, you can assign them to a network using the following command: SET TRUNK {slot} RING_IN NETWORK {network} or SET TRUNK {slot} RING_OUT NETWORK {network}...
Page 202: Port Active Module Switching Module
required. If a trunk fault appears which disrupts phantom drive, the trunk will wrap immediately. The module never goes to beacon recovery because the problem is corrected before that happens. If, for any reason, phantom is not disturbed by the fault, beacon recovery is initiated as in No.
Page 203 passive module refer to 8.9.4, “Beacon Recovery on the Module Switching Modules” on page 158. Support for address-to-port mapping using the Recovery ASIC. Support for fan-out devices and splitters for attaching up to 8 stations to each port. Note that fan-out device or splitter is required to provide a phantom signal;...
Page 204: Front View Of 20-Port Passive Module
Figure 111. Front View of 20-Port Passive Module Figure 111 shows the front view of the 20-port passive module. As can be seen, this module provides LED indicators on the front panel that allow you to monitor the status of the module and the individual ports. Table 30 describes the meaning of these LEDs: Table 30 (Page 1 of 2).
Page 205: Configuring The 20-Port Passive Module
Table 30 (Page 2 of 2). 20-Port Passive Module LED Descriptions LED Name Color State Description Port Status Green Port enabled and operating normally on the ring Port disabled 1 blink Port enabled, no phantom Figure 112 shows the side view of the 20-port passive module. As can be seen, in addition to the 11 isolated segments and the mounting for one T-MAC, there is an 8-position DIP switch located on the module.
Page 206 The number of times that a phantom transition is allowed to cause a port to unwrap is determined by the bcn_threshold parameter which can be set for each module using the following command: SET MODULE {slot.port} BCN_THRESHOLD {0-255} Once the threshold is exceeded, the port or trunk remains wrapped until the user disables and re-enables the port.
Page 207: Dual Fiber Repeater Module
9.6 8260 Dual Fiber Repeater Module This is a single slot module that supports 10 active lobe ports and two sets of fully repeated fiber RI/RO trunk ports. This is a per-port switching module, which means that any of the lobe ports or and trunk port sets can be assigned to any of the backplane segments.
Page 208: Front View Of Dual Fiber Repeater Module
Figure 113. Front View of Dual Fiber Repeater Module Figure 113 shows the front view of the dual fiber repeater module. As can be seen, this module provides LED indicators on the front panel that allow you to monitor the status of the module and the individual ports. Table 28 on page 176 describes the meaning of these LEDs: Table 31 (Page 1 of 2).
Page 209: Dual Fiber Repeater Module Side View
Table 31 (Page 2 of 2). Dual Fiber Repeater Module LED Descriptions LED Name Color State Description RI/RO Green Trunk enabled and operating Trunk disabled. Blinking Trunk enabled but not operating normally JA1 and JA2 Green JADC card installed and operating normally JADC card not installed Blinking...
Page 210: Configuring The Dual Fiber Repeater Module
9.6.1 Configuring the Dual Fiber Repeater Module To configure this module you must do the following: 1. Set beacon threshold for the module. When a beaconing condition is detected on a lobe port, the port is wrapped by the Recovery ASIC. The port is unwrapped when a transition of phantom is detected or when the port disabled and then re-enabled by the user.
Page 211 Trunk ports can be enabled/disabled using the following command: SET TRUNK {slot} RING_IN.n MODE {enable|disable} or SET TRUNK {slot} RING_OUT.n MODE {enable|disable} 7. Enable/disable ports. Each port can be enabled/disabled using the following command: SET PORT {slot.port} mode {enable|disable} Chapter 9. 8260 Token-Ring Modules...
Page 212 8260 Multiprotocol Intelligent Switching Hub...
Page 213: Chapter 10. 8260 Rmon Support
LAN environments. The FDDI extensions for RMON have yet to be completed. RMON provides comprehensive Ethernet and token-ring LAN network monitoring support functions such as statistics collection, threshold monitoring, historical statistics collection, problem diagnostics and report Copyright IBM Corp. 1995...
Page 214: Network Probes
generation. Information provided by RMON can be used for identifying sources of network problems, for fine-tuning network performance, and planning for network expansion. RMON uses SNMP for communication between the network management station and RMON agents. Unlike SNMP devices, RMON keeps polling traffic overhead to a minimum as the RMON probes are not continuously polled.
Page 215: Rmon Manager
Figure 116. An Example of RMON Implementation 10.1.2 RMON Manager The network management station, also known as the RMON manager, works in conjunction with the RMON agents to provide a central point for managing and consolidating information gathered by the RMON agents. To minimize network overhead, the RMON manager does not continuously poll the agents although it has the ability to do so.
Page 216: Rmon Goals
baseline network characteristics, quickly spotting potential trouble spots and resolving them before major crises occur. 10.2 RMON Goals To ensure that RMON can function effectively and efficiently in a distributed environment, its framework was designed with the following goals: Offline operation Preemptive monitoring Problem detection and reporting Value-added data...
Page 217: Multiple Managers
RFC 1271 Remote Network Monitoring (RMON) MIB for Ethernet RFC 1513 token-ring extensions to the RMON MIB IBM employees can retrieve the RFC documents from VM/CMS by typing: tools sendto almvma arcnet rfc get rfcxxxx txt The rfcxxxx can be rfc1513 or rfc1271.
Page 218: Mib Structure For Rfc 1271 - Rmon Mib For Ethernet
Table 32. MIB Structure for RFC 1271 - RMON M I B for Ethernet Group Description Statistics The Statistics group provides an overview of the current segment network activity at any given moment. It collects segment statistics like octets, packets, collisions, broadcast, various error counters and packet size.
Page 219 memory and disk space to the RMON application. If you are running RMON subset on a bridge or router, you might want to consider offloading the task to an external monitoring device. Octets The number of octets of data (including those in bad packets) received on the network (including the FCS octets but excluding the framing bits).
Page 220 Fragments Fragments are similar to CRC Align Error packets with the exception that each fragmented packet is less than 64 octets in length. This can indicate a high collision rate. Collisions The number of collisions detected on the network. Collisions are common phenomena on Ethernet segments.
Page 221 The History Control table stores configuration entries containing the interface information, polling period, number of buckets requested, and number of buckets granted. The number of buckets requested represents the number of times the operator wants to collect and store the samples. The probe will respond with the number of buckets granted based on the requests as well as available resources.
Page 222 10.4.1.4 Host Group The Host group creates and maintains a host table for the segment monitored. The Host MIB is very useful as it contains information and cumulative statistics for every discovered host such as: Host MAC address Good packets/octets received/transmitted Error packets transmitted Broadcast packets transmitted Multicast packets transmitted...
Page 223: Managing The Token-Ring Lan Environment
The Destination-Source table captures similar information but indexes it from a receiver-oriented perspective. 10.4.1.7 Filter Group The Filter group allows packets that are of particular interest to be captured using arbitrary filter expressions. These packets are then directed into channels that can be turned on or off to control the packet flow.
Page 224: Mib Structure For Rfc 1513 - Token-Ring Extensions To The Rmon Mib
Table 33. MIB Structure for RFC 1513 - Token-Ring Extensions to the RMON M I B Group Description Token-ring Token-ring This group collects ring error statistics and ring utilization from Statistics MAC-layer the MAC layer. It samples MAC data and provides information Statistics like MAC octets, MAC packets, beacon packets, line errors, burst errors, token errors, lost frame errors, congestion errors,...
Page 225 Here is a list of MAC statistics available under this group and their respective descriptions: Drop Event The number of events in which MAC packets were dropped by the probe due to unavailability of resources on the probe itself. It doesn t represent the number of packets dropped but the number of times this condition was detected.
Page 226 Recovery mode set Streaming signal (not Claim Token MAC frame) Streaming signal, Claim Token MAC frame or intermediate detection of hard error Beacon Time Keeps track of the amount of time that the ring has been in the beaconing state. Beacon Packet Refers to the total number of Beacon MAC frames detected by the probe.
Page 227 total number of burst errors reported in the Soft Error Report MAC frame. ACErrors This error is flagged when a frame is copied by an adapter to which it was not addressed. Address Copied Errors or ACErrors will increment the error counter only for the nearest upstream neighbor of the station reporting the error.
Page 228 Frequency Error Occurs when a ring station detects a frequency error. A new station inserting into the ring can cause downstream stations to be off frequency This condition seems to happen more on 16 Mbps than 4 Mbps rings. This statistic is found in the total number of Frequency errors reported in the Soft Error Report MAC frame.
Page 229 or hub, you might want to consider offloading the task to an external monitoring device. Octets The total number of octets of data in good frames received on the network in non-MAC packets (including the FCS octets but excluding the framing bits).
Page 230 10.5.1.2 History Group The token-ring History groups capture historical information about network utilization and error statistics for the token-ring network. They provide a means of correlating the data collected by the Statistics group over time. They record statistical samples according to a user-specified frequency and duration and store them for later retrieval.
Page 231 Line Errors Internal Errors Burst Errors Address Copied Errors Abort Errors Lost Frame Errors Congestion Errors Frame Copied Errors Frequency Errors Token Errors Soft Error Reports Ring Poll Events Active Stations All of the above statistics are also sampled by the token-ring MAC-layer Statistics group with the exception of the Active Stations statistic.
Page 232 Number of active stations on the ring Current status of the ring with the following possible ring states: Normal operation Ring Purge state Claim Token state Beacon Frame Streaming state Beacon Bit Streaming state Beacon Ring Signal Loss state Set Recovery Mode state Address of the last beacon sender Address of the last beacon sender s NAUN Address of the Active Monitor on the segment...
Page 233 10.5.1.5 Ring Station Configuration Group The token-ring Ring Station Config group provides the capability to actively manage and query the configuration of each token-ring node in the local ring. The RMON probe can initiate the removal of a station from the ring by sending a Remove Station MAC frame.
Page 234: Monitoring Functions Supported In 8260
source routing bridges. Transparent bridges do not use this field. One-Hop Frames Contains the total number of frames received whose route had one hop, were not all-routes broadcast frames, and whose source or destination address were on this ring. Two-Hop Frames Contains the total number of frames received whose route had two hops, were not all-routes broadcast frames, and whose source or...
Page 235: Monitoring Functions Supported By E-Mac
following command to display the status of the DMM network interfaces via T-MACs and E-MACs installed in your hub: 8260A> show interface Figure 117 shows an example of the output from this command: 8260A> show interface Admin Oper MAC Idx Network Type Stat Stat Address Slot General Information --- ------------- ---- ----- ----- ----------------- ----- --------------------...
Page 236: Monitoring Functions Supported By T-Mac
- Ring Station group - Ring Station Order - Ring Station Configuration group - Source Routing group Support for token-ring surrogate functions (IBM MIB extensions): Configuration Report Server (CRS) - Ring station information - Removes station from ring - Reports topology changes...
Page 237: Show Counter Command For Ethernet Networks
Note The statistics that are collected using the DMM commands described in the next sections are NOT all RMON statistics. The non-RMON statistics are identified. 10.6.3 SHOW COUNTER Command for Ethernet Networks This DMM command allows you to display the following information for the segments to which the DMM has an interface via an E-MAC: 1.
Page 238: Show Counter Interface For Ethernet Segment
8260A> 8260A> show counter interface ethernet_1 Interface Statistics for ETHERNET_1 ----------------------------------------------------------------------------- Received Octets 939978 Received Unicast Packets 8488 Received Non-Unicast Packets Received Discards Received Errors Received Unknown Protocols Transmitted Octets Transmitted Unicast Packets Transmitted Non-Unicast Packets 4 Transmitted Discards Transmitted Errors 8260A>...
Page 239: Show Counter Repeater For Ethernet Segment
8260A> 8260A> show counter repeater ethernet_1 module 2 Repeater Statistics for Module 2 on ETHERNET_1 ----------------------------------------------------------------------------- Readable Frames Readable Octets Runts FCS Errors Late Events Short Events Frame Too Longs Very Long Events Alignment Errors Collisions Data Rate Mismatches Auto Partition Count 8260A>...
Page 240: Collecting And Displaying Rmon Groups Using E-Mac
8260A> 8260A> show counter rmon hosts ethernet_1 all RMON Hosts Table for Host Address 00-00-c9-01-01-0b on Port 2.4 ----------------------------------------------------------------------------- Received Packets Received Octets 8704 Transmitted Packets Transmitted Octets 13132 Transmitted Errors Transmitted Broadcast Packets Transmitted Multicast Packets RMON Hosts Table for Host Address 80-00-7a-00-00-a0 on Port 0.0 ----------------------------------------------------------------------------- Received Packets Received Octets...
Page 241 Statistics TopN-hosts To be able to collect and view the above information, you must perform the following steps: 1. Use the SHOW INTERFACE command to determine the interface index for each E-MAC installed in your hub. 2. Enable the E-MAC interface if not enabled already. You can do this using the following command for the E-MAC: set module {slot.subslot} interface enable 3.
Page 242 SET RMON ALARM ETHERNET {stat_type}.{interface} RISING {threshold} FALLING {threshold} {event} {time} {trigger} {alarm type} The following is a summary of the parameters that can be specified for the Stat_type: BroadcastPackets Collisions CRCAlignErrors Fragments Jabbers MulticastPackets Octets OversizePackets Packets UndersizePackets In the above command, event is the index number of the RMON event that occurs when the threshold is exceeded.
Page 243: Rmon Host Control Table
The format of the command to display the contents of the control table for the statistics group is slightly different. In this case, you must use the following command: SHOW RMON statistics ETHERNET CONTROL ALL The following example allows you to determine all the interfaces on which the RMON host group is enabled.
Page 244: Show Counter Command For Token-Ring Networks
8260A> show rmon host data 1 all by_creation_order RMON Host display for Interface 3 : Creation Order Host Address : 10-00-5A-D4-B0-8C Input Packets : 2954 Output Packets : 2954 Input Octets : 301308 Output Octets : 301308 Output Errors Output Packets (Broadcast) Output Packets (Multicast) Creation Order Host Address...
Page 245: Show Counter For Token_Ring Segments
8260A> 8260A> show counter token_ring token_ring_7 Token Ring Statistics for TOKEN_RING_7 ----------------------------------------------------------------------------- Ring Status: No Problems Detected Ring State: Opened Ring Open Status: Ring Open Ring Speed: 4 MBPS Upstream Station: 40-00-00-03-33-38 Functional Addr.: c0-00-00-00-00-18 Active Monitor Selection Participation: Disabled Line Errors: Burst Errors: AC Errors:...
Page 246: Show Counter Interface For Token-Ring Segment
8260A> show counter interface token_ring_7 Interface Statistics for TOKEN_RING_7 ----------------------------------------------------------------------------- Received Octets 6082132 Received Unicast Packets 19226 Received Non-Unicast Packets 93810 Received Discards Received Errors Received Unknown Protocols Transmitted Octets 322275 Transmitted Unicast Packets Transmitted Non-Unicast Packets 0 Transmitted Discards Transmitted Errors 8260A>...
Page 247: Show Counter Rmon Hosts For Token_Ring Segments
8260A> show counter rmon hosts token_ring_7 all RMON Hosts Table for Host Address 40-00-00-03-33-38 on Port 6.9 ----------------------------------------------------------------------------- Received Packets Received Octets Transmitted Packets Transmitted Octets 11108 Transmitted Errors Transmitted Broadcast Packets Transmitted Multicast Packets RMON Hosts Table for Host Address 10-00-f1-0b-58-00 on Unk ----------------------------------------------------------------------------- Received Packets Received Octets...
Page 248: Show Counter Rmon Ring_Station Using Ring Option
8260A> show counter rmon ring_station token_ring_7 ring RMON Token Ring Station Control Statistics for Network TOKEN_RING_7 ----------------------------------------------------------------------------- Active Stations: Table Size: Ring State: Normal operation Last Beacon Sender: 00-00-00-00-00-00 Last Beacon NAUN: 00-00-00-00-00-00 Active Monitor: 40-00-00-03-33-38 Order Changes: 8260A> Figure 127. Show Counter RMON Ring_station Using ring Option An example of the output from the above command with the “all”...
Page 249: Show Counter Rmon Ring_Station Using All Option
8260A> 8260A> show counter rmon ring_station token_ring_7 all RMON Token Ring Station Statistics for Network TOKEN_RING_7 ----------------------------------------------------------------------------- Station Mac Address: 40-00-00-03-33-38 Station Status: Active Last Enter Time: 1483081 Last Exit Time: 0 Last NAUN: 10-00-f1-0b-58-00 ----------------------------------------------------------------------------- Duplicate Addresses: In Line Errors: Out Line Errors: Internal Errors: In Burst Errors:...
Page 250: Show Counter Rmon Tr_Mac_Layer
SHOW COUNTER RMON TR_MAC_LAYER {network} An example of the output displayed for this command is shown in Figure 129. 8260A> 8260A> show counter rmon tr_mac_layer token_ring_7 RMON Token Ring Mac-Layer Statistics for Network TOKEN_RING_7 ----------------------------------------------------------------------------- Drop Events: Beacon Events: Beacon Time: Beacon Packets: Claim Token Events: 0 Claim Token Packets: 0...
Page 251: Show Counter Rmon Tr_Mac_Layer
8260A> 8260A> show counter rmon tr_promiscuous token_ring_7 RMON Token Ring Promiscuous Statistics for Network TOKEN_RING_7 ----------------------------------------------------------------------------- Data Octets: 27092 Data Packets: DATA PACKETS DATA PACKETSckets: Broadcast Packets: Multicast Packets: to 63 Octets: 457 to 127 Octets: 15 128 to 255 Octets: 0 256 to 511 Octets: 0...
Page 252: Collecting And Displaying Rmon Groups Using T-Mac
8260A> show counter rmon tr_source_routing token_ring_7 RMON Token Ring Source Routing Statistics for Network TOKEN_RING_7 ----------------------------------------------------------------------------- Frames: Frames: Through Frames: 1013 Octets: Octets: Through Octets: 93748 Rt Brcst Frms: 7477 Single Rt Brcst Frms: 18488 Rt Brcst Octs: 553319 Single Rt Brcst Octs: 2624628 Local LLC Frames: Hop Frames: Hops Frames:...
Page 253 3. Enable the collection of RMON information by T-MAC, using the following command: SET MODULE {slot.subslot} RMON_GROUP enable This command enables the collection of RMON information by T-MAC. You must, also, enable the collection of individual RMON groups using the commands described in the next step.
Page 254: Surrogate Functions Supported By T-Mac
8260A> 8260A> show module 8.2 verbose Slot Module Version Network General Information ----- --------------- ------- ------------- ------------------- 08.02 T-MAC v2.00 TOKEN_RING_7 T-MAC: Token Ring Network Monitor Card Boot Version: v2.00 IP Address: 9.67.46.195 Subnetwork Mask: ff.ff.ff.f0 Default Gateway: 0.0.0.0 Station Address: 10-00-f1-0b-58-00 Locally Administered Address: 00-00-00-00-00-00...
Page 255: Using T-Mac Surrogate Functions
parameters, and remove stations on its ring. It also collects and forwards configuration reports generated by stations on its ring to the LAN manager. Traditionally, CRS and REM functions are implemented in the bridges. However, the 8260 T-MAC implements the CRS and REM functions, which provides you with the following functions: Collect soft error statistics Analyze soft error statistics...
Page 256: Displaying The Status Of Surrogate Features
8260A> show tr_surrogate 8.2 surr_status Surrogate Status Data for Network TOKEN_RING_7 ------------------------------------------------------------------------ Surrogate Admin Status: ENABLED Port Mac Address: 10-00-f1-0b-58-00 Ring Segment: 0000 Ring Utilization: 0.0% REM Admin Status: ENABLED REM Oper Status: Active CRS Admin Status: ENABLED CRS Oper Status: Active 8260A>...
Page 257: Displaying The Status Of Rem Options
8260A> show tr_surrogate 8.2 rem_status Ring Error Monitor Status Data for Network TOKEN_RING_7 ----------------------------------------------------------------------------- REM Traps: DISABLED Weight Exceeded Traps: DISABLED PreWeight Exceeded Traps: DISABLED Receiver Congestion Traps: DISABLED NonIso Threshold Exceeded Traps: DISABLED Forward Frames Traps: DISABLED Ring Line Error Data: DISABLED Ring Internal Error Data: DISABLED...
Page 258: Displaying The Information Collected By Surrogate Features
An example of the output from this command is shown in Figure 136 on page 236. 8260A> show tr_surrogate 8.2 crs_station all Configuration Report Server Ring Station Data for MAC address 10-00-f1-0b-58-00 of Network TOKEN_RING_7 ----------------------------------------------------------------------------- Station Status: Active Mfg. Adapter Address: 10-00-f1-0b-58-00 NAUN Address: 40-00-00-03-33-38...
Page 259: Dot5_Group Support By T-Mac
SHOW TR_SURROGATE {slot.subslot} REM_SOFT_ERROR Threshold exceeded conditions SHOW TR_SURROGATE {slot.subslot} REM_THRESHOLD_EXCD 10.8 DOT5_Group Support by T-MAC DOT5_Group support by T-MAC allows you to perform the statistics collection tasks defined in the IEEE 802.5 token-ring Management Information Base (MIB). These functions allow the T-MAC to perform the following: Collect soft error statistics Provide interface status information 10.8.1 Using DOT5_Group Functions...
Page 260 Table 35 (Page 2 of 2). Functions Performed by T-MAC V2.0 Function RMON DOT5 Reports Beaconing conditions & resolution Reports REM MAC frames Provides ring station configuration information Reports NAUN and Active Monitor changes Upon request, forces station off ring Provides local ring traffic stats Provides local ring stations stats Provides bridged/remote station stats...
Page 261: Chapter 11. 8260 Multiprotocol Interconnect Module
Translational bridging between token-ring and Ethernet or 802.3 segments when both sides use transparent bridging IP routing between Ethernet/802.3 and/or token-ring segments IPX routing between Ethernet/802.3 and/or token-ring segments DECnet Phase IV routing between Ethernet/802.3 segments Copyright IBM Corp. 1995...
Page 262 Note: DECnet Phase IV routing is not supported on token-ring ports. The Multiprotocol Interconnect module uses a 32-bit RISC processor (80960FA) for high performance, allowing you to forward up to 45,000 packets per second when bridging and up to 30,000 packets per second when routing IP. The performance of the module will vary depending on the number of routing protocols running in the module as well the size of the packets.
Page 263: Front View Of The Multiprotocol Interconnect Modules
Figure 137 on page 241 shows the front view of the 1-slot and 2-slot Multiprotocol Interconnect modules. Figure 137. Front View of the Multiprotocol Interconnect Modules There are a number of activity and status LED displays on the front panel of the Multiprotocol Interconnect module which are used to show the information provided in Table 36 on page 242.
Page 264: Power Requirements For Multiprotocol Interconnect Module
Table 36. Interconnect Module LED Description LED Name Color State Description Module Status Green Power is on, software functioning Power is off or complete failure Blinking Power is on but diagnostics failure Network Yellow Continuous activity on the port Activity No activity on this port Blinking Normal activity on this port...
Page 265: Watts To Units Conversion Table
Table 37 (Page 2 of 2). Power Requirements for Interconnect Module IP Cards Total Power Requirements (in Units) I/O Cards + 2 V + 5 V + 1 2 V -12V 10Base-5 10Base-2 10Base-T Token-Ring It is expected that the customer will buy the Multiprotocol Interconnect module pre-configured with I/O cards, including proper programming for EEPROM, and will leave the I/O card configuration, as is, for extended periods of time.
Page 266: Bridging Functions
Note This module cannot perform source-route to transparent (SR-TB) bridging like the IBM 8209 and 8229. This module supports the spanning tree protocol and can coexist and interoperate with other transparent and source-route transparent bridges that support the spanning tree protocol.
Page 267: Routing Functions
11.4 Routing Functions The Multiprotocol Interconnect module supports the following routing protocols: DECnet Phase IV 11.4.1 IP Routing Support When acting as an IP router, the Multiprotocol Interconnect module provides support for: Directed broadcast ICMP Proxy ARP Ethernet or 802.3 (not both) encapsulation on LAN interface Datagram fragmentation/reassembly support IP security Boothelper...
Page 268: Ipx Routing Support
Supports authentication between routers. Importation of RIP routes and static routes to an OSPF domain may be enabled or disabled. Filters may be configured to import or discard specific RIP and static routes to OSPF. Supports hop count to OSPF metric conversion when importing RIP and static routes.
Page 269: Local Management System (Lms)
command to assign ports 1 thru 6 to the desired Ethernet segments on the ShuntBus or Enhanced TriChannel. SET PORT {slot.port} NETWORK {ethernet_n|isolated} Note that ports 7 and 8 are not assigned to any segment on the backplane; therefore, the above command is not required for these ports. 11.6 Local Management System (LMS) When you connect to the Interconnect module via an ASCII terminal or Telnet session, you can have one of the following two types of sessions:...
Page 270 Configuration Menu This option allows you to alter configuration parameters and monitor statistics about the Multiprotocol Interconnect module. Status Menu This option allows you to review the statistics and configuration information without changing any values. Enable/Disable Write Access When you first access the LMS, you automatically have read-only access to monitor the Multiprotocol Interconnect module.
Page 271: Lms Short Cut Commands
Help Screen Module: BladeRunner Time: 13:07 5 Jan 95 control-C: Cancel input, cancel a popup menu, or exit a screen control-J: Go to the screen jump table control-K: Go to this help screen control-L: Refresh the screen display control-P, control-T: Go to the top of the menu hierarchy control-W: Toggle write access for this session...
Page 272: Snmp Support
Config * Jump Table - Config screens Module: BladeRunner Time: 14:25 5 Jan 95 System Download Trap Dest. Table Physical Port List Phy. Port Protocol Phy. Port Interface Logical Port Logical Port MLink Bridging System Bridging Port STP System STP Port Filtering Database Custom Filter Test Custom Filter Stmt.
Page 273: Configuring The Interconnect Module Using Lms
Dot5 Group Frame Relay Group IP Forward Group OSPF Group PPPF Group Retix Private MIB extensions The following SNMP traps will be sent by the SNMP agent to the SNMP managers which have been defined as a trap receiver . coldStart linkUp Enterprise specific traps:...
Page 274: Configuring System Wide Parameters
Config * Configuration Menu Module: BladeRunner Time: 14:24 5 Jan 95 System Menu Ports Menu Bridge Menu Protocols Menu Exit System parameters Menu Figure 141. LMS Configuration Panel The following sections will describe the required steps for configuring these features. 11.8.1 Configuring System Wide Parameters The system wide parameters allow you to configure the following: 1.
Page 275: Lms System Parameters Panel
Warmstart : All the configuration settings are read from the FLASH memory, resulting in the restoration of the last saved configuration information. Note that all the statistics tables will be cleared during to a Warmstart . The Menu Bar options of the Systems Parameters screen allow you to perform the following: Reset Unit This enables you to initiate an immediate reset of the Interconnect...
Page 276: Lms Trap Destination Panel
To add an entry to this table, you must select Add Entry from the Menu Bar options of the panel shown in Figure 143 on page 254. You will then be prompted (via a pop-up menu) to enter the IP address and the community name of the SNMP manager.
Page 277: Configuring Port Parameters
Note If you select Start BOOTP Download and do not specify the TFTP server IP address and TFTP filename in the above panel, the Multiprotocol Interconnect module will use BOOTP to locate a BOOTP server in the network in order to get this information to perform the download operation.
Page 278: Lms Port Menu Panel
Physical Port List This option is applicable to all the WAN and LAN ports. Note that at the time of writing this book, IBM was not offering any I/O card for WAN connection. Physical Port Protocol Parameters This option is applicable to WAN and token-ring ports. It does not apply to Ethernet ports.
Page 279: Lms Physical Port List For Ethernet Connections
applicable to the LAN ports and will not be discussed any further in this book. 11.8.2.1 Configuring Physical Port Parameters The Physical Port List panel displays information about the physical ports currently installed on your module. An example of this panel is shown in Figure 146.
Page 280: Lms Physical Ports List For Token-Ring I/O Cards
Config * Physical Port List Module: BladeRunner System Page 2 Time: 15:49 5 Jan 95 Port ID Name Connection Card Type Protocol PHYSICAL PORT FRONT PANEL tokenRing tokenRing PHYSICAL PORT FRONT PANEL tokenRing tokenRing Prev Page Next Page Exit Figure 147. LMS Physical Ports List for Token-Ring I/O Cards Using the Physical Port List panel, you may configure a name for each LAN port.
Page 281: Lms Physical Port Protocol Configuration Panel
Config * Physical Port Protocol Parameters Module: BladeRunner Phy. Port: 7 PHYSICAL PORT Time: 15:56 5 Jan 95 Link Protocol: tokenRing Commands: noOp Ring Speed: fourMegabits Act Mon Part: false Funct MAC Addr Mask: C00000000000 Search Port Prev Port Next Port Exit Return to the previous screen Figure 148.
Page 282: Lms Logical Port Panel
11.8.2.3 Configuring Logical Port Parameters This panel allows you to configure parameters for Ethernet, token-ring and WAN logical ports. An example of this panel for an Ethernet port is shown in Figure 149. Config * Logical Port Parameters Module: BladeRunner Log.
Page 283: Port Configuration Summary
Encapsulation This is a read-only parameter and shows the type of encapsulation used on the physical port to which this logical port is attached. In the case of a token-ring port, this field will show tokenRing . Attach Port and Detach Port These parameters are used to attach/detach logical ports to/from WAN physical ports.
Page 284: Lms Bridging System Parameters
The following sections describe the procedures used to configure the Multiprotocol Interconnect module to perform one of the following: Transparent bridging for Ethernet and/or token-ring Source-route transparent bridging for token-ring Translational bridging between token-ring and Ethernet 11.8.4.1 Configuring for Transparent Bridging After configuring the system-wide and port parameters, you must do the following: 1.
Page 285: Transparent Bridging Port Parameters Panel
Time-To-Delete (in seconds) For information on this parameter, refer to 11.8.5, “Filtering for Bridging Functions” on page 270. Time-To-Forget (in seconds) For information on this parameter, refer to 11.8.5, “Filtering for Bridging Functions” on page 270. You must ignore the following parameter as it does not apply to LAN only Multiprotocol Interconnect module: Adaptive Routing Support 2.
Page 286 If security mode is disabled , and the destination address is known, the packet is forwarded on the appropriate port. If the address is not known, the packet is sent (flooded) on all the other ports. For more information, refer to 11.8.5, “Filtering for Bridging Functions” on page 270. Custom Filtering This option allows you to enable or disable custom filtering for the packets received on this port.
Page 287: Lms Stp System Parameters Panel
Config * STP System Parameters Module: BladeRunner System Time: 17:06 5 Jan 95 STP Facility: Enabled STP Version: draft STP Domain Address: 0180C2000000 Reset Delay Time: Bridge Priority: 8000 Bridge Hello Time: Bridge Max Age Time: 1200 Bridge Forward Delay Time: 800 Exit Version of the Spanning Tree Protocol Figure 153.
Page 288: Lms Stp Port Parameters Panel
If two bridges have the same bridge priority, the one with the lowest MAC address has higher priority. Bridge Max Age Time Specifies the max value for the age field (in hundredths of a second) in the Hello BPDU before it is discarded by the Multiprotocol Interconnect module.
Page 289 Path Cost Mode This parameter is used by the spanning tree protocol to determine how the value of the path cost is configured. The following values can be specified for this parameter: Manual : In this case the path cost will be taken from the Manual Port Path Cost parameter.
Page 290: Lms Source Routing Port Parameter
Config * Source Routing Port ParametersModule: BladeRunner Log. Port: 8 LOGICAL PORT Time: 17:33 5 Jan 95 Security Mode: Disabled Source Address Filtering: Disabled Custom Filtering: Disabled Hop Count: Local Segment: Disabled * Port STE SpanMode: autoSpanMode Largest Frame: mtu4472Bytes Search Port Prev Port Next Port...
Page 291: Lms Conversion System Parameters Panel
5. Configure the STP Port Parameters for each token-ring port performing source-route transparent bridging, as described in 11.8.4.1, “Configuring for Transparent Bridging” on page 262. 6. Optionally, you may configure the security and filtering parameters as described in 11.8.5, “Filtering for Bridging Functions” on page 270. 11.8.4.3 Configuring for Translational Bridging To perform translational bridging between the token-ring and Ethernet ports attached to the Multiprotocol Interconnect module, both the token-ring and...
Page 292: Filtering For Bridging Functions
This parameter allows you to enable/disable SNAP conversion between token-ring and Ethernet frames. When enabled, the Ethernet network is treated as an 802.3 network. When disabled, the Ethernet network is treated as an Ethernet V2 network. Note that the implication of this parameter is that the Ethernet ports can be either Ethernet V2 or 802.3 but not both.
Page 293: Lms Configuration Panel
Config * Filtering Database Module: BladeRunner System Page 1 Time: 14:27 6 Jan 95 MAC Address Disposition Scope MAC Address Disposition Scope #0000B528023E 1 %090077000002 %0180C2000000 #08005A1326EB 2 %08008F4001A0 %08008F4001A1 %08008F4001A2 %08008F4001A3 %08008F4001A4 %08008F4001A5 %08008F4001A6 %08008F4001A7 %090077000001 + Unlearned # Learned * Static $ Permanent % Management...
Page 294 Permanent($) These are manually entered addresses which are stored in the FLASH memory. Static (*) These are entries that have been entered manually. They cannot be aged-out of the filtering database, but will be lost during a module Reset . Usually the manually entered addresses are permanent and are retained in the FLASH memory which results in them being retained during the module reset.
Page 295 To do this, each address in the database has an age assigned to it. When the address is learned, the age is set to zero. At subsequent time intervals this address is incremented. There are two system-wide timers which govern the length of the time the learned entries will be kept in the filtering database: Time-to-Forget If an address is already in the filtering database and no packets are received...
Page 296: Destination Address Filtering
11.8.6 Destination Address Filtering Destination address filtering allows you to use the contents of the filtering database to forward or discard frames. Destination address filtering is always performed by the Multiprotocol Interconnect module. However, certain configurable parameters as described below will affect the operation of the destination address filtering: If the port is operating in normal mode and the destination address of the frame is found in the filtering database, the packet is bridged according to...
Page 297: Lms Custom Filter Test Table Panel
Filter Test Table . Note that there is only one of these tables in each Multiprotocol Interconnect module and it contains all the test that are to be performed by the Multiprotocol Interconnect module, regardless of the ports on which these tests are performed. To define the tests, select Custom Filter Test Table from the Bridge Menu .
Page 298: Custom Filter Test Table
This field defines the bits in the received frame, starting at the specified offset , that should be tested against the contents of the value field. Only the bits which have a value of B in the mask will be tested. Logical Operator The following operators can be used for testing: Equal...
Page 299: Lms Custom Filter Statement Table
Config * Custom Filter Statement Table Module: BladeRunner Log. Port: 1 LOGICAL PORT Page 1 Time: 14:10 9 Jan 95 Statement ID Test Name Action on Success Action on Failure Frame Type Test Stmt 2 Discard Discard Discard Discard Discard Discard Discard Discard...
Page 300: Configuring For Routing Functions
Fwd Prio #: Forward the frame at the specified priority (#). # can be 0 to 7. Priority 0 is the highest priority. Stmt #: Specifies another statement ID from the Custom Filter Statement Table, so that another test may be applied to the frame. # can be 1 to 16.
Page 301: Configuring For Ip Routing
The following sections describe the procedures used to configure the Multiprotocol Interconnect module to perform one of the following: IP routing IPX routing DECnet Phase IV routing 11.8.8 Configuring for IP Routing The Multiprotocol Interconnect module allows you to use RIP, OSPF, and static routes when used as an IP router.
Page 302: Lms Ip Port Address Table Panel
Config * IP Port Address Table Module: BladeRunner System Page 1 Time: 15:35 9 Jan 95 Port IP Address IP Subnet Mask 9.67.46.11 255.255.255.240 9.67.46.44 255.255.255.240 9.67.46.17 255.255.255.240 Add Entry Prev Page Next Page Exit Return to the previous screen Figure 162.
Page 303: Lms Ip System Parameters Panel
An example of the IP System Parameters panel is shown in Figure 163 on page 281. Config * IP System Parameters Module: BladeRunner System Time: 15:43 9 Jan 95 IP Routing: Enabled RIP: Enabled Router ID: 9.67.46.44 IP Security: Disabled ARP Timeout: 1500 Reassembly Timeout: 10 Proxy ARP:...
Page 304 This parameter specifies the length of time that the module may wait for all the fragments of a fragmented IP message to be received for reassembly. If they are not received within the specified time, the datagram is discarded. Note that datagram reassembly takes place at the destination of a datagram only.
Page 305: Lms Ip Port Parameter Panel
Config * IP Port Parameters Module: BladeRunner Log. Port: 1 LOGICAL PORT Time: 15:55 9 Jan 95 IP Port Routing: Enabled Disposition: discard RIP: Enabled * IP Mtu: 1492 RIP Path Cost: LAN Encapsulation: ethernet Broadcast Form: ones Forward Broadcast: Enabled Security Access List 1: 0 Security Access List 2: 0...
Page 306: Lms Ip Forwarding Table Panel
that the Multiprotocol Interconnect module recognizes both types of broadcasts on the received frames regardless of the setting of this parameter. Forward Broadcast This parameter specifies if this port will forward directed broadcast messages. Directed broadcasts have all 1 s in the hostid portion of their address.
Page 307 Next Hop This is the IP address of the node that is the next stop for a packet en route to its destination address. The next hop must be directly connected to the interface for which this route is defined. Mask This is the subnet mask associated with the destination address entry.
Page 308: Lms Ip Net To Media Table
Config * IP Net To Media Table Module: BladeRunner System Page 1 Time: 10:50 11 Jan 95 Port Network Address Media Address Type 9.67.46.13 400000000001 static 9.67.46.33 10005A7903C7 dynamic 9.67.46.34 10005A7903E1 dynamic 9.67.46.40 0000B528023E dynamic 9.67.46.41 08008F3003EF dynamic 9.67.46.46 08005A13396F dynamic Add Entry Search Addr...
Page 309: Lms Boothelper Parameters Panel
Also a BOOTP client can request the code image file to be downloaded from the TFTP server. To configure the Multiprotocol Interconnect module as a Boothelper you must select Boothelper Parameter from the Protocols Menu . An example of the Boothelper Parameters panel is shown in Figure 167. Config * Boothelper Parameters Module: BladeRunner...
Page 310: Lms Ospf Menu Panel
11.8.8.1 Configuring for OSPF To configure the Multiprotocol Interconnect module to use OSPF, you must select OSPF from the Protocols Menu . The resulting panel is shown in Figure 168. Config * OSPF Menu Module: BladeRunner Time: 11:11 11 Jan 95 OSPF System Parameters OSPF Area Table OSPF Area Default Metric Table...
Page 311: Lms Ospf System Parameter Panel
Config * OSPF System Parameters Module: BladeRunner System Time: 17:39 11 Jan 95 Area Border Router: false Router ID: 9.67.46.44 TOS Support: true Admin Status: Enabled AS Boundary Router: true Import Rip Routes: Enabled Import Static Routes: Enabled Default Action on No Match for RIP Routes: import Default Action on No Match for Static Routes: import Exit...
Page 312: Lms Ospf Interface Table Panel
This parameter determines if the RIP filter table will be used for importing routes found by RIP. RIP filter table is discussed later in this section. Import Static Routes This parameter determines if the static route filter table will be used for importing static routes.
Page 313 can only be modified. There will be one entry in this table for each IP address assigned to the Multiprotocol Interconnect module s ports. To modify the parameters on this panel, you must select the Modify Entry option. A pop-up menu will be displayed which allows you to change the following parameters for each IP interface: IP Address This parameter specifies the IP address of the port.
Page 314 This parameter specifies the number of seconds between the Hello Packets that the router sends on the interface. This interval must be the same for all the routers attached to the same network. RtdDeadInt If a router s neighbor does not see a Hello packet within this period, it will declare the router down.
Page 315: Lms Ospf Area Table Panel
Config * OSPF Area Table Module: BladeRunner System Page 1 Time: 17:41 11 Jan 95 Area ID AuthType Import AS SPF Brdr AS Brdr Area Chksum Extern LSA Runs Routers Routers LSAs 0.0.0.0 true 025393 Add Entry Prev Page Next Page Exit Return to the previous screen Figure 171.
Page 316: Lms Ospf Area Default Metric Table
This parameter is read-only and contains 32-bit unsigned sum of the Link-state-advertisement s link-state checksum contained in this area s link-state database. This sum can be used to determine if there has been a change in a router s link-state database and to compare the link-state database of two routers.
Page 317: Lms Ospf Area Address Range Panel
from the OSPF Menu . The resulting panel is shown in Figure 173 on page 295. Config * OSPF Address Range Table Module: BladeRunner System Page 1 Time: 12:04 11 Jan 95 Area ID Range Net Range Mask 0.0.0.0 9.67.46.0 255.255.255.000 Add Entry Prev Page...
Page 318: Lms Ospf Interface Metric Table
Config * OSPF Interface Metric Table Module: BladeRunner System Page 1 Time: 17:44 11 Jan 95 IP Address Port Metric 9.67.46.17 9.67.46.44 9.67.46.94 Add Entry Prev Page Next Page Exit Return to the previous screen Figure 174. LMS OSPF Interface Metric Table This panel allows you to specify the following parameters for each entry: IP Address This is the IP address of the interface advertising the metric.
Page 319: Lms Ospf Virtual Interface Table Panel
Config * OSPF Virtual Interface Table Module: BladeRunner System Page 1 Time: 17:44 11 Jan 95 Area ID Neighbor TransDelay RetransInt HelloInt RtrDeadInt Add Entry Prev Page Next Page Exit Return to the previous screen Figure 175. LMS OSPF Virtual Interface Table Panel The following parameters can be specified for each entry: Area ID This parameter specifies the 32-bit integer identifying the transit area...
Page 320: Lms Ospf Neighbors Panel
8. Define the other OSPF routers which are neighbors to the Multiprotocol Interconnect module. To so so, select OSPF Neighbors from the OSPF Menu panel. An example of the resulting panel is shown in Figure 176 on page 298. Config * OSPF Neighbor Table Module: BladeRunner System...
Page 321: Lms Ospf Rip Filter Table Panel
This field is read-only and shows the current length of the retransmission queue. 9. You may define the filters for importing RIP discovered routes by selecting OSPF RIP Filter Table from the OSPF Menu . An example of the resulting panel is shown Figure 177.
Page 322: Lms Configuration Panel
Config * OSPF Rip Convert Table Module: BladeRunner System Page 1 Time: 17:46 11 Jan 95 IP Address IP Mask Hop Count Metric 9.67.46.0 255.255.255.240 9.67.46.0 255.255.255.240 9.67.46.0 255.255.255.240 9.67.46.0 255.255.255.240 9.67.46.0 255.255.255.240 9.67.46.0 255.255.255.240 9.67.46.0 255.255.255.240 9.67.46.0 255.255.255.240 9.67.46.0 255.255.255.240 9.67.46.0 255.255.255.240...
Page 323: Lms Ospf Default Rip Convert Table Panel
Config * OSPF Rip Default Convert TablModule: BladeRunner System Page 1 Time: 17:47 11 Jan 95 Hop Count Metric Modify Entry Prev Page Next Page Exit Return to the previous screen Figure 179. LMS OSPF Default RIP Convert Table Panel The following parameters can be viewed/modified for each entry: Hop Count This parameter specifies hop count measured in RIP.
Page 324: Lms Ospf Static Filter Table Panel
Config * OSPF Static Filter Table Module: BladeRunner System Page 1 Time: 17:47 11 Jan 95 IP Address IP Mask Action Add Entry Prev Page Next Page Exit Return to the previous screen Figure 180. LMS OSPF Static Filter Table Panel This panel allows you to define the following parameters for each filter entry: IP Address This parameter specifies the destination IP address.
Page 325: Lms Configuration Panel
Config * OSPF Static Convert Table Module: BladeRunner System Page 1 Time: 17:48 11 Jan 95 IP Address IP Mask Metric Modify Entry Prev Page Next Page Exit Return to the previous screen Figure 181. LMS Configuration Panel This panel allows you to enter the following parameters for each entry: IP Address This parameter specifies the destination IP address.
Page 326: Ip Security
Config * OSPF Static Default Convert TablModule: BladeRunner System Page 1 Time: 17:49 11 Jan 95 Hop Count Metric Modify Entry Prev Page Next Page Exit Return to the previous screen Figure 182. LMS OSPF Default Static Convert Table Panel The following parameters can be viewed/modified for each entry: Hop Count This parameter specifies hop count measured in RIP.
Page 327: Lms Ip Security Table Panel
Config * IP Security Table Module: BladeRunner List: 1 Page 1 Time: 12:02 18 Jan 95 ID Source Source Destination Destination Action Prot Address Mask Address Mask 9.67.46.41 255.255.255.240 9.67.46.46 255.255.255.240 pass Add Entry Search List Prev List Next List Prev Page Next Page Exit...
Page 328 Source Address This is the source address of the IP datagram against which the source address of the IP datagram currently being processed is compared. A value of 0.0.0.0 serves as a wildcard, indicating all IP addresses. Source Mask This is the address mask which is logically ANDed with the source address in the table and the source address in the IP datagram.
Page 329: Lms Ip Security Access Panel
Config * IP Security Access List Module: BladeRunner Page 1 Time: 12:07 18 Jan 95 List Transmit Action on Receive Action on ICMP Check No Match (Tx) Check No Match (Rx) Generation Enabled pass Enabled pass Enabled Disabled pass Disabled pass Disabled Disabled...
Page 330: Configuring For Ipx Routing
ICMP Generation This field specifies whether an ICMP Destination Unreachable message is forwarded to the source address on any IP datagram that is discarded because of security checks. Note: There is only one IP security access list per Multiprotocol Interconnect module.
Page 331: Lms Ipx System Parameters Panel
4. Configure the system-wide IPX parameters by selecting IPX System Parameters from the IPX Menu . An example of the resulting panel is shown in Figure 186 on page 309. Config * IPX System Parameters Module: BladeRunner System Time: 10:52 13 Jan 95 IPX Routing: Enabled IPX Security: Disabled...
Page 332: Lms Ipx Port Parameters Panel
Config * IPX Port Parameters Module: BladeRunner Log. Port: 1 LOGICAL PORT Time: 11:00 13 Jan 95 IPX Port Routing: Enabled Host Number: 08008F4001A0 Disposition: discard Network Number: 00000001 Interface Delay: Encapsulation: ieee802.3 RIP Timer: SAP Timer: Security Access List 1: 0 Security Access List 2: 0 Search Port Prev Port...
Page 333: Monitoring Multiprotocol Interconnect Module
Interface Delay This is the estimated time taken for an IPX packet containing 576 bytes of data to traverse the hop between the interface and the associated link. This parameter is displayed in milliseconds and is used to determine the best route to a destination address.
Page 334 Allows you to display information about the physical ports currently installed on your module. Physical Port Protocol Statistics Displays different statistical information for each port, depending on the type of the interface and the link protocol configured for the port. Physical Interface Statistics This screen is applicable to the WAN ports only.
Page 335 Displays information about various link state advertisements sent and received by the Multiprotocol Interconnect module. OSPF Link State Database Table Displays the link state database in the Multiprotocol Interconnect module. This information includes the area and the router identifier from which the link-state advertisements were received.
Page 336 8260 Multiprotocol Intelligent Switching Hub...
Page 337: Appendix A. Power Requirements For 8250/8260 Modules
6773, 7390 Port switch 7393 FOIRL 3814EFL-16EFL Ethernet 4 ports 3817EF Ethernet 6 ports TCP/IP/LAT 3818ES, Ethernet 16 ports terminal s e r v e r 3896ES E M M 3819 3788 Ethernet Ethernet Mgmt. Module Copyright IBM Corp. 1995...
Page 338: A.2 Power Requirements For 8250 Token-Ring Modules
A.2 Power Requirements for 8250 Token-Ring Modules Table 42. Power Requirements for 8250 Token-Ring Modules Module Feature Code Type Description Power Consumption (watts by voltage type) Slots + 1 2 Used M A U 3820T Token Ring 8 ports 8-pin RI/RO Twisted Pair 3821T...
Page 339: A.4 Power Requirements For 8250 Internetworking Modules
A.4 Power Requirements for 8250 Internetworking Modules Table 44. Power Requirements for 8250 FDDI Modules Module Feature Code Type Description Power Consumption (watts by voltage type) Slots + 1 2 Used Ethernet B r i d g e 3828EB Ethernet 2 ports Token Ring 3883TB...
Page 340 8260 Multiprotocol Intelligent Switching Hub...
Page 341: Index
UTP support 4-port ATM Concentrator module Address-to-Port-Mapping 802.5C Dual Ring Wrapback AMP frame dual-ring station module-switching modules primary ring neighbor notification secondary ring per-port switching modules single-ring station SMP frame topology support for fan-out devices 161, 166 Copyright IBM Corp. 1995...
Page 342 Address-to-Port-Mapping (continued) Configuring for transparent bridging support for MAC-less stations 163, 166 Configuring Power Supplies A l a r m fault tolerant mode Group non-fault tolerant mode analog collision detection Set Power Mode 79, 80 Statistics Collection Show Hub applying power Show Inventory 8250 modules 84, 85...
Page 343 Distributed Management Module (DMM) 10, 38 DMM Terminal Settings (continued) D M M hangup front panel mode DMM alert_filter parity DMM alerts Serial Line Interface (SLIP) authentication stop_bits change terminal-type hello DMM users DMM Command Administrator DMM community table Superuser DMM Configuration User changing password...
Page 344 E-MAC Configuration (continued) Ethernet (continued) Set Module Monitor_Contention Packets Set Module Network 65, 68 Statistics Show Module 65, 68 Undersized packet E-MAC Monitoring Functions Ethernet 10-Base-FB module RFC 1271 Ethernet 10-Port 10Base-FB Module RMON MIB backplane segments Eavesdropping Protection configuration 118, 120 EC-DMM connectors...
Page 345 NRZ format token-ring modules 2, 9 local collision IBM 8260 Model 017 port-id 8260 Backplane remote collision Intelligent Cooling subsystem 6, 89 serial-id alert slot-id cooling zones...
Page 346 Intelligent Power Management (continued) Local Management System (LMS) (continued) Vital Product Data (VPD) Physical Port List menu Intelligent Power Subsystem Physical Port Protocol Parameters menu Intrusion protection Ports menu diasbling ports Protocol menu jamming ports read session reporting intruders Shortcut commands IP Addressing for DMM Source Routing Port Parameters menu STP Port Parameters menu...
Page 347 Multiprotocol Interconnect Module (continued) power management Considerations (continued) processor overload situation programming power requirements power budget RIP implementation power failure Router Engine Module (REM) Power Management Scenarios 86, 87, 88 routing functions A power-supply failure - scenario 1 SNMP support 240, 250 A power-supply failure - scenario 2 software download...
Page 348: Differential Manchester Coding
RMON Support (continued) token-ring (continued) using T-MAC bucket Burst Error Claim Token Event Claim Token Packet Security Address Table Congestion Error autolearning Drop Event entries Frame-Copied Error manual procedure Frequency Error size History Group Serial Control Interface (SCI) Internal Error Serial Line Interface (SLIP) Line Error default gateway...
Page 349 Token-Ring Network Parameters (continued) ring speed splitter support token-ring path token-ring pins on the Enhanced TriChannel clock-in clock-out data-in data-out token-ring pins on the ShuntBus clock receive clock transmit data A transmit data B transmit token-ring segments on the backplane Token-Ring Surrogate Functions Configuration Report Server Ring Error Monitor...
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IBM Nways 8260 Manual

Special Notices

Chapter 1. An Overview of the IBM 8260 Hub

Chapter 2. Backplane Architecture

Chapter 3. 8260 Fault Tolerant Controller Module

Chapter 4. 8260 Distributed Management Architecture

Chapter 5. 8260 Intelligent Power Management Subsystem

Chapter 6. 8260 Intelligent Cooling Subsystem

Chapter 7. 8260 Ethernet Modules

Chapter 8. 8260 Token-Ring Support

Chapter 9. 8260 Token-Ring Modules

Chapter 10. 8260 RMON Support

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Summary of Contents for IBM Nways 8260