Page 1 Asynchronous Transfer Mode (ATM) Module Installation and User Guide Extreme Networks, Inc. 3585 Monroe Street Santa Clara, California 95051 (888) 257-3000 http://www.extremenetworks.com Published: November 2001 Part number: 121049-00 Rev. 01...
Page 2 SummitGbX, SummitRPS, and the Extreme Networks logo are trademarks of Extreme Networks, Inc., which may be registered or pending registration in certain jurisdictions. The Extreme Turbodrive logo is a service mark of Extreme Networks, which may be registered or pending registration in certain jurisdictions. Specifications are subject to change without notice.
Page 3: Table Of Contents
Contents Preface Introduction Conventions Related Publications Overview BlackDiamond 6800 Series Switch Overview About the ATM Module Installing or Replacing an ATM Module Preparing for Installation Inserting and Securing a Module Asynchronous Transfer Mode (ATM) Module Installation and User Guide Terminology...
Page 4 Configuring and Monitoring SONET LED Indicators Displayed Slot Status Information Identifying Problem Categories Fixing Configuration Errors Upgrading the Switch Software Image Upgrading the ATM Module Software Image Upgrading the ATM Module BootROM Fixing Power-Related Problems Fixing Link Down Problems Identifying Conditions for Replacing an I/O Module...
Page 5 Configuring a QoS Profile Classification and Replacement Policies Configuring DiffServ Enhanced RED Support QoS Monitor Intra-Subnet QoS Configuring General Switch Attributes Configuring Port Attributes Configuring IGMP Attributes Configuring Layer 2 and 3 Switching Attributes Configuring Access List Attributes Changing Image and Configuration Attributes...
Page 6 Supported MIBs and Standards ATM Support SONET/SDH Support QoS and DiffServ Support Index Index of Commands MIBs Supported for ATM Standards Supported for SONET/SDH MIBs Supported for SONET/SDH Standards Supported for DiffServ Asynchronous Transfer Mode (ATM) Module Installation and User Guide...
Page 7 Asynchronous Transfer Mode (ATM) Module Installation and User Guide ATM module Front panel view of the ATM module Slot locations in a BlackDiamond 6800 series chassis Inserting and securing an ATM module Bridging over ATM ports Routing over ATM ports...
Page 8 viii Asynchronous Transfer Mode (ATM) Module Installation and User Guide...
Page 9 Assured Forwarding Classes and Three-Level Drop Precedence Assured Forwarding Classes and Two-Level Drop Precedence Mapping PHBs to QoS Profiles Changes to General Switch Commands Changes to Port Commands Changes to Image Commands New ExtremeWare Commands Summary of Commands with Enhanced Syntax...
Page 10 Asynchronous Transfer Mode (ATM) Module Installation and User Guide...
Page 11: Preface
This guide provides the required information to install the ATM module in a ® BlackDiamond 6800 series switch from Extreme Networks and perform the initial module configuration tasks. This guide is intended for use by network administrators who are responsible for installing and setting up network equipment.
Page 12: Terminology
When features, functionality, or operation is specific to the ATM module, the ATM module name is used. Switches and switch modules that use naming conventions ending in “i” have additional capabilities that are documented throughout this user guide. For the most current list of products supporting the “i”...
Page 13: Related Publications
• ExtremeWare Software User Guide • BlackDiamond 6800 Series Switch Hardware Installation Guide • BlackDiamond Module Installation Note Documentation for Extreme Networks products is available on the World Wide Web at the following location: http://www.extremenetworks.com/ Asynchronous Transfer Mode (ATM) Module Installation and User Guide...
Page 14 Asynchronous Transfer Mode (ATM) Module Installation and User Guide...
Page 15: Overview
• About the ATM Module on page 1-3 BlackDiamond 6800 Series Switch Overview The BlackDiamond 6800 series switch is a chassis-based switch designed to be placed in the core of your network. The BlackDiamond 6800 series switch is flexible and scalable, making it easy for you to meet the changing requirements of your network.
Page 16: Blackdiamond I/O Modules
Overview BlackDiamond I/O Modules In addition to the ATM module described in this guide, the BlackDiamond 6800 series switch supports a variety of I/O modules that offer a choice of port connections over different media types and distances. For more information, see the BlackDiamond 6800 Series Switch Hardware Installation Guide.
Page 17: About The Atm Module
Ethernet backbone. In the first application, the metropolitan area network service provider can build service network sites in various cities, then use ATM modules in a BlackDiamond 6800 series switch to connect those cities to a carrier’s ATM infrastructure.
Page 18: Physical Description
The ATM module consists of a printed circuit board mounted on a metal carrier that acts as the insertion vehicle in a BlackDiamond 6800 series switch (see Figure 1-1). The module carrier also includes ejector/injector handles and captive retaining screws at each end of the module front panel.
Page 19 • Two high-performance network processors • A General Purpose Processor (GPP) subsystem The network processors are programmable devices that participate with the Extreme “i” chipset to support expanded functionality, features, and flexibility. The GPP subsystem handles system control and I/O module management functions.
Page 20: Feature Summary
Overview Module status LEDs Port status LEDs Figure 1-2: Front panel view of the ATM module Feature Summary The ATM module supports the following key networking functions: • Synchronous Optical Network (SONET) and Synchronous Digital Hierarchy (SDH) modes of operation •...
Page 21: Function Summary
— Ingress and egress rate shaping and limiting — IEEE 802.1p VLAN priorities — Weighted RED (WRED) congestion avoidance algorithm — Assured Forwarding and Expedited Forwarding RFCs • Service provider specific features, such as: — Flexible remapping of DiffServ codepoints —...
Page 22 Jumbo frames are Ethernet frames that are larger than 1522 bytes, including four bytes used for the cyclic redundancy check (CRC). Extreme products that use the “i” chipset support switching and routing of jumbo frames at wire-speed on all ports.
Page 23 About the ATM Module Service Provider Features The ATM module provides the following features for service provider environments: • DSCP mapping • VLAN ID (VID) tag mapping • VLAN ID (VID) tag nesting • VLAN to PVC mapping DSCP Mapping. You can use the command to configure a diffserv dscp-mapping mapped relationship between an input DSCP and an associated output DSCP.
Page 24 Overview functions make it possible for service providers to tunnel customer-specific VLANs across a common ATM backbone in a very simple manner. VLAN to PVC Mapping. VLAN to PVC mapping can be used by service providers to isolate and provision a customer’s traffic using different VLANs and PVCs for each customer.
Page 25: Installing Or Replacing An Atm Module
Installing or Replacing an ATM Module This chapter includes information on the following topics: • Preparing for Installation on page 2-1 • Inserting and Securing a Module on page 2-7 • Making Network Interface Cable Connections on page 2-9 • Verifying the Module Installation on page 2-10 •...
Page 26: Software And Hardware Version Requirements
Installing or Replacing an ATM Module Software and Hardware Version Requirements The ATM module is compatible with “i”-series MSM modules and Summit and “i”-series I/O modules. For the most current list of I/O modules supported for use with the ATM module, consult your release notes. Software support for the ATM module is provided in an ExtremeWare technology release, which is a software release providing specialized hardware support and/or additional functionality not found in the current mainstream ExtremeWare releases.
Page 27: Cables And Connectors
Safety Information Before you begin the process of installing or replacing an ATM module in a BlackDiamond 6800 series system, read the safety information in this section. Failure to observe the necessary safety guidelines can lead to personal injury or damage to the equipment.
Page 28: Tools
I/O Module Slot Locations Figure 2-1 shows the I/O module slot locations in the BlackDiamond 6800 series chassis. You can install the ATM module in any of the numbered slots labeled 1 through 8. I/O modules do not fit in slots A or B. When you are installing a new ATM module, you must first remove the blank filler from the available slot.
Page 29 To ensure a sufficient flow of cooling air across the component side of the ATM module, install the ATM module in the BlackDiamond 6800 series chassis so that another module, a blank filler, or the far right chassis wall covers the component side of the module.
Page 30: Slot Locations In A Blackdiamond 6800 Series Chassis
Installing or Replacing an ATM Module I/O module slots ESD wrist strap connector POWER Power supplies V-50/60Hz 200-240V, 15A Figure 2-1: Slot locations in a BlackDiamond 6800 series chassis MSM module slots I/O module slots 50015 50015 51040 AMBER ACTIVITY...
Page 31: Inserting And Securing A Module
1 through 8. I/O modules do not fit in slots A or B. Forceful insertion can damage the I/O module. 1 Before you install modular cards in the BlackDiamond 6800 series chassis, put on the ESD-preventive wrist strap that is provided with the chassis, and connect the metal end of the grounding leash to the ground receptacle located on the top-left corner of the BlackDiamond 6800 series switch front panel.
Page 32: Inserting And Securing An Atm Module
Installing or Replacing an ATM Module (a) Loosen captive screws (b) Pivot ejector/injector handles POWER Figure 2-2: Inserting and securing an ATM module When the module is pushed into the chassis slot, the ejector/injector handles will begin pivoting to their closed position. e To seat the module in the backplane connectors, completely close the module ejector/injector handles by pushing them toward the center of the module front panel.
Page 33: Making Network Interface Cable Connections
Making Network Interface Cable Connections Use the appropriate type of optical-fiber cable—single-mode—to connect the ATM ports of your BlackDiamond 6800 series switch to another switch or router. Kinks and sharp bends can destroy or impair the cable’s ability to convey light pulses accurately from one end of the cable to the other.
Page 34: Verifying The Module Installation
Installing or Replacing an ATM Module Verifying the Module Installation After you have installed the ATM module and connected the fiber optic cables, verify that the I/O module is working correctly. Check the LEDs on the front panel of the I/O module and use the command-line interface (CLI) display slot-specific information about the newly installed module.
Page 35 The information in this section should be used in conjunction with the “Troubleshooting” appendix in the ExtremeWare Software User Guide and the release notes that accompanied your Extreme Networks product. If you encounter a problem that is not discussed in one of these resources, contact Extreme Networks technical support.
Page 36: Identifying Problem Categories
Asynchronous Transfer Mode (ATM) Module Installation and User Guide Corrective action (No action required.) See “Fixing Configuration Errors” on page 2-13. See “Upgrading the Switch Software Image” on page 2-14. See “Upgrading the ATM Module Software Image” on page 2-14.
Page 37: Fixing Configuration Errors
Table 2-1: ATM Module and Port LEDs (continued) Color Port x Green Green blinking Amber blinking, returning to green Amber blinking Fixing Configuration Errors If the STATUS LED on the ATM module turns amber and blinks, use the command to display the configured slot type. The output from this command also displays information about the module state, including the CARD MISMATCH message.
Page 38: Upgrading The Switch Software Image
<slot> the ATM module in the specified slot rather than to one of the switch’s image partitions. Like the MSM module, the ATM module can store up to two images: a primary and a secondary image.
Page 39: Upgrading The Atm Module Bootrom
See Chapter 3 for more information about changing images and configuration attributes. Fixing Power-Related Problems If the LEDs on all other modules are off, verify that the BlackDiamond 6800 series switch is connected to an appropriate power source and is turned on.
Page 40: Fixing Link Down Problems
Installing or Replacing an ATM Module Fixing Link Down Problems A flashing green port status LED can indicate the following conditions: • Port is disabled. • Port is not configured as a member of a VLAN. To enable a port, use the following command: enable ports <portlist>...
Page 41: Removing And Replacing An I/O Module
Statistics” chapter in the ExtremeWare Software User Guide. Removing and Replacing an I/O Module I/O modules can be installed only in any of the BlackDiamond 6800 series chassis slots labeled 1 through 8. I/O modules do not fit in slots A or B. Forceful insertion can damage the I/O module.
Page 42 Installing or Replacing an ATM Module 3 Disconnect all of the optical-fiber cables from the I/O module and set them carefully aside. Be very careful in handling optical-fiber cables: kinks and sharp bends can destroy or degrade the cable’s ability to convey light pulses accurately. 4 Use the #1 Phillips-head screwdriver to loosen the captive screw at each end of the I/O module front panel.
Page 43: Configuring The Atm Module
Other commands and background information used to configure I/O modules and switch behavior in a network are documented in the ExtremeWare Software User Guide. For hardware installation information on the BlackDiamond 6800 series switch, see the BlackDiamond Hardware Installation Guide.
Page 44: Basic Atm Module Configuration Information
Configuring the ATM Module Basic ATM Module Configuration Information This section uses several typical usage and configuration schemes to provide a brief overview of the ATM module configuration process as a general context for the detailed command description sections that follow. ATM Module Characteristics ATM is a packet transmission technique that uses fixed size data frames called “cells”.
Page 45: Default Atm Module Configurations
BlackDiamond 6800 series switch can support 3000 VLANs. Default ATM Module Configurations When the BlackDiamond 6800 series switch is powered on, the ExtremeWare software determines which slots are occupied by I/O modules, determines whether it has a configuration for each module, and generates a default configuration for each slot that is occupied by an I/O module that has not yet been configured.
Page 46 BlackDiamond switch. When a routed VLAN is configured, the total number of VLANs supported in the BlackDiamond switch is 1500. If no routed VLANs are configured, and you want to support more than 1500 VLANs, you must set the CPU transmit priority to...
Page 47 BlackDiamond switch 1, the service provider has configured PVC 5/101 on ATM port 8:1 to connect to BlackDiamond switch 2 and PVC 5/102 on ATM port 8:1 to connect to BlackDiamond switch 3. The following configuration commands describe the basic steps necessary to configure the network displayed in Figure 3-1.
Page 48: Bridging Over Atm Ports
PVC 5/102 1:16 Customer B Figure 3-1: Bridging over ATM ports Commands for configuring BlackDiamond switch 1: create vlan customerA config vlan customerA tag 101 config vlan customerA add ports 1:1, 8:1 tagged config atm add pvc 5/101 encap l2 vlan customerA port 8:1...
Page 49: Routing Over Atm Ports
Commands for configuring BlackDiamond switch 2: create vlan customerA config vlan customerA tag 101 config vlan customerA add ports 1:1, 8:1 tagged config atm add pvc 5/101 encap l2 vlan customerA port 1:1 Commands for configuring BlackDiamond switch 3: create vlan customerB...
Page 50 Configuring the ATM Module Commands for configuring BlackDiamond switch 1: create vlan Serverfarma config vlan Serverfarma add ports 1:1 config vlan Serverfarma ipaddress 192.168.9.1/24 create vlan wanLink config vlan wanLink add ports 8:1 config vlan wanLink ipaddress 192.168.10.1/24 config atm add pvc 5/101 encap ip peer-ipaddress 192.168.10.2 vlan wanLink...
Page 51: Configuring And Monitoring Atm Ports
Configuring and Monitoring ATM Ports In addition to the ExtremeWare commands for configuring slot and port behavior that are described in the ExtremeWare Software User Guide, this section describes the commands used to configure ATM ports. This section provides information on the following topics: •...
Page 52: Displaying Atm Port Status Information
Configuring the ATM Module config atm delete pvc [<vpi / vci> | all] {vlan <name>} ports <portlist> This command deletes the specified PVC configuration on the specified ATM port(s). The optional parameter may be used to limit the scope of the command to the vlan specified VLAN.
Page 53: Displaying Pvc Status Information
Table 3-1: Summary of ATM Receive Statistics Receive Statistics Cells Received Cells OAM Cells Dropped (Congestion) Cells Dropped (Invalid VCC) Cells Dropped (HEC) PDUs Received PDUs Dropped (CRC) PDUs Dropped (Oversized) PDUs Dropped (Other) Table 3-2 describes the ATM transmit statistics. Table 3-2: Summary of ATM Transmit Statistics Receive Statistics Cells Transmitted...
Page 54: Configuring Atm Scrambling
• Transmitted octets • Transmitted packets The following command example displays all of the PVC status information for a PVC configured on an ATM port in a BlackDiamond switch: show atm pvc 5/101 port 1:1 Configuring ATM Scrambling To enable or disable payload data scrambling on the specified port, use the following command: config atm scrambling [on | off] ports <portlist>...
Page 55 Configuring and Monitoring ATM Ports The following command example turns off the scrambling function for port 1 of the ATM module installed in slot 8 of the BlackDiamond switch. config atm scrambling off ports 8:1 Asynchronous Transfer Mode (ATM) Module Installation and User Guide...
Page 56: Configuring And Monitoring Sonet
Configuring the ATM Module Configuring and Monitoring SONET In addition to the ExtremeWare commands for configuring slot and port behavior that are described in the ExtremeWare Software User Guide, this section describes the commands used to configure and monitor SONET specific attributes on ATM ports. This section provides information on the following topics: •...
Page 57: Commands For Configuring And Monitoring Sonet Features On Atm Ports
Table 3-3: SONET Parameters and Values (continued) Parameter J0 Section Trace string J1 Path Trace identifier string C2 Signal Label 1. B2 bit error rate (BER) threshold; a Signal Failure (SF) event is generated if the BER exceeds the specified threshold. 2.
Page 58: Configuring Sonet Framing
[sonet | sdh] ports <portlist> The following command example selects SDH framing for port 1 of the ATM module installed in slot 8 of the BlackDiamond switch. config sonet framing sdh ports 8:1 Configuring SONET Clocking...
Page 59: Configuring The Signal Fail Threshold
SD bit error rate of 10 The following command example sets the Signal Degrade threshold value to 8 for port 1 of the ATM module installed in slot 8 of the BlackDiamond switch. config sonet threshold signal degrade 8 ports 8:1...
Page 60: Configuring The Section Trace Identifier
The following command example sets the Section Trace identifier to the string “1800wombat” for port 1 of the ATM module installed in slot 8 of the BlackDiamond switch. config sonet trace section string 1800wombat ports 8:1 Configuring the Path Trace Identifier Path trace is a maintenance feature of SONET.
Page 61: Configuring The Signal Label
15 characters. The following command example sets the Path Trace identifier to the string “parador” for port 1 of the ATM module installed in slot 8 of the BlackDiamond switch. config sonet trace path parador ports 8:1 Configuring the Signal Label The Signal Label field occupies one byte (C2) of the Path Overhead associated with each SONET frame.
Page 62: Resetting Sonet Configuration Parameter Values
The following command example sets the Signal Label to the hexadecimal value CF for port 1 of the ATM module installed in slot 8 of the BlackDiamond switch. config sonet signal label CF ports 8:1 Resetting SONET Configuration Parameter Values...
Page 63: Sonet Events On Atm Ports
Table 3-5: Summary of SONET Statistics Statistic Section parity errors Line parity errors Path parity errors REI-L event counter REI-P event counter LOS event counter LOF event counter LOP event counter AIS-L event counter AIS-P event counter RDI-L event counter RDI-P event counter PLM-P event counter SF BER event counter...
Page 64 The Line Alarm Indication Signal is sent by the upstream STE to Signal—Line (AIS-L) inform the LTE that a LOS or LOF defect has been detected. Extreme's SONET module never sends AIS-L. AIS-L was formerly known as Line Far End Receive Failure (FERF). Related SONET Overhead: K2 carries AIS-L.
Page 65 Table 3-6: SONET Events (continued) Event Path Payload Label Mismatch (PLM-P) Signal Failure Bit Error Rate (SF BER) Signal Degrade Bit Error Rate (SD BER) Asynchronous Transfer Mode (ATM) Module Installation and User Guide Description The Path Payload Label Mismatch event occurs when the received payload type does not match the expected payload.
Page 66: Configuring Vlan-Related Attributes
Configuring the ATM Module Configuring VLAN-Related Attributes The ExtremeWare software and the Extreme Networks switch architecture provide a range of Virtual Local Area Network (VLAN) features, which are described in detail in the ExtremeWare Software User Guide. This section describes how these features are supported on the ATM module.
Page 67: Configuring Tagged Vlan 802.1P And 802.1Q Functions
• config vlan <name> protocol [<protocol_name> | any] • enable mac-vlan mac-group [any | group_number] ports <portlist> The restrictions are as follows: • An ATM port cannot be added to a VLAN if the VLAN is a protocol-based VLAN. • A VLAN cannot be configured to be a protocol-based VLAN if the VLAN contains an ATM port.
Page 68 Use the keyword to apply the mapping of the input VLAN ID to the output egress VLAN ID to frames received from the switch backplane prior to transmitting them onto the ATM link. Use the ingress from the ATM link. The mappings are applied after they are classified to a QoS profile.
Page 69 Configuring VLAN Tag Nesting Attributes config dot1q tagnesting allowing a tag push or pop attribute to be associated with a VLAN ID. The push attribute indicates that a new tag is to be added to the frame, while the pop attribute indicates that the top-level tag is to be removed from the frame.
Page 70: Generic Vlan Registration Protocol Functions
Configuring the ATM Module , which is an integer in the range from 0 to 7. To preserve the 802.1p priority, priority do not enter the keyword and value when using this command. priority Default behavior is that tag nesting is disabled (off) for all VLAN IDs. Tag push operations apply to egress frames only when the port is configured to transmit tagged frames for the associated VLAN.
Page 71: Configuring Qos Functions
Configuring QoS Functions The ExtremeWare software and the Extreme Networks switch architecture provide a number of Quality of Service (QoS) functions, which are described in detail in the ExtremeWare Software User Guide. This section describes how these QoS functions, such as Differentiated Services (DiffServ) and Random Early Detection (RED) are supported on the ATM module.
Page 72: Configuring A Qos Profile
Configuring the ATM Module Table 3-8: QoS-Related Commands (continued) Command config red [drop-probability | low-drop-probability | high-drop-probability] <percent> {ports <portlist>} config red min-threshold <percent> ports <portlist> config qosprofile <qosprofile> {minbw <percent>} {maxbw <percent>} {priority <level>} {minbuf <percent>} {maxbuf <percent>} {<portlist>} {egress | ingress} disable red ports <portlist>...
Page 73: Classification And Replacement Policies
To configure the scheduling parameters for a specified QoS profile, use the following command: config qosprofile <qosprofile> {minbw <percent>} {maxbw <percent>} {priority <level>} {minbuf <percent>} {maxbuf <percent>} {<portlist>} {egress | ingress} The optional egress the ATM module supports eight egress queues and eight ingress queues per port, and the scheduling parameters for these queues are controlled by QoS profiles qp1-qp8, which means queue #0 is controlled by qp1, queue #1 is controlled by qp2, and so on.
Page 74 Egress frames are always assigned to a QoS profile based on their 802.1p priority. Thus, when an ATM port receives a frame from the switch fabric with a priority value n, that frame is assigned to egress QoS profile qpn+1.
Page 75: Configuring Diffserv
“Configuring DiffServ” in the ExtremeWare Software User Guide. DiffServ Classification When a packet arrives at the switch on an ingress port, the switch examines the first six of eight TOS bits, called the code point. The switch can assign the QoS profile used to subsequently transmit the packet based on the code point.
Page 76 Configuring the ATM Module Table 3-9: Default Code Point-to-QoS Profile Mapping (continued) Code Point QoS Profile 40-47 48-55 56-63 To configure the mapping between a DiffServ code point and a specified QoS profile, use the following command: config diffserv examination code-point <code_point> qosprofile <qosprofile>...
Page 77 One potential use of the DSCP mapping capability is to reconcile varying DiffServ policies at the boundary between autonomous systems, such as at the boundary between two ISPs. The availability of different tables for the congested and noncongested states is useful in marking operations that increase the probability of packets being dropped during times of congestion, as discussed in the DiffServ Assured Forwarding RFC (RFC 2597).
Page 78: Enhanced Red Support
This section describes the changes and additions to ExtremeWare to support RED in conjunction with ATM modules that have IP frames encapsulated in bridged or routed protocols. The Extreme implementation of RED combines the functions of the RED algorithm with IP precedence to provide support for preferential traffic handling for higher-priority packets.
Page 79 Configuring RED Drop Probability To configure the RED drop probability for a specified ATM port, use the following command: config red [drop-probability | low-drop-probability | high-drop-probability] <percent> {ports <portlist>} The optional low-drop-probability are supported only for ATM ports. If you omit the ports The drop probability is specified as a percentage, where the integer in the range from 1 to 100.
Page 80: Comparisons Of Red And Wred Operation
Configuring the ATM Module DSCP indicates that the packet should be dropped with a low or high probability, which is to say, the DSCP of the packet controls which curve is used. A. RED Operation on ATM Ports Packet Configured drop-probability drop probability Minimum...
Page 81 Configuring QoS Functions Enabling and Disabling RED on ATM Ports The existing ExtremeWare commands to enable and disable RED ports have been enhanced to provide RED configuration attributes for the ATM module. Because the ATM module supports eight egress queues per port, the commands were enhanced to allow the user a way to enable RED selectively on an individual port and queue basis.
Page 82: Drop Precedence
(see Table 3-11). The three-level scheme supports low, medium, and high drop-precedence levels for the AF classes; the two-level scheme supports low and high drop-precedence levels (and groups the medium drop-precedence code-points with the high drop-precedence code-points). The Extreme implementation for the ATM module supports the two-level drop-precedence scheme. 3-40...
Page 83: Assured Forwarding Classes And Three-Level
Table 3-10: Assured Forwarding Classes and Three-Level Drop Precedence Drop-Precedence Level Low drop precedence Medium drop precedence (AF12) 001100 High drop precedence Table 3-11: Assured Forwarding Classes and Two-Level Drop Precedence Drop-Precedence Level Low drop precedence High drop precedence In addition, a network element that complies with the DiffServ standards must also provide a recommended default code point, which must be unique for code points in the standard space.
Page 84 Configuring the ATM Module The DSCPs associated with a PHB are assigned to the appropriate QoS profile using the config diffserv examination code-point command sets up the mapping for the EF PHB: config diffserv examination code-point 46 qosprofile qp8 ports 2:1-2:2 Additional configuration steps for ATM ports in this example are as follows: •...
Page 85 config diffserv examination code-point 14 qosprofile qp4 ports 2:1-2:2 high-drop-probability For example, for AF2 (qp5): config diffserv examination code-point 18 qosprofile qp5 ports 2:1-2:2 low-drop-probability config diffserv examination code-point 20 qosprofile qp5 ports 2:1-2:2 high-drop-probability config diffserv examination code-point 22 qosprofile qp5 ports 2:1-2:2 high-drop-probability For example, for AF3 (qp6): config diffserv examination code-point 26 qosprofile qp6...
Page 86: Qos Monitor
Configuring the ATM Module Displaying RED Configuration Information for ATM Module Ports While the syntax of the existing the output of the command now displays the RED and DiffServ configuration parameters associated with ATM module ports. To display QoS, RED, and DiffServ information for a specified ATM port, use the following command: show ports info detail For ATM ports, the existing...
Page 87: Additional Atm Module Support Topics
Configuring General Switch Attributes Except as described below, the ATM module supports all of the general ExtremeWare switch commands. Table 3-13 describes the changes to existing ExtremeWare general switch commands to support the ATM module. Commands with keywords or parameters shown in italic typeface are existing ExtremeWare commands that have been enhanced to support the ATM module.
Page 88: Configuring Port Attributes
Configuring the ATM Module Table 3-13: Changes to General Switch Commands (continued) Command reboot {time <date> <time> | cancel} {slot <slot>} clear counters show diagnostics slot {<slot>} run diagnostics [normal | extended] slot <slot> Configuring Port Attributes The following ExtremeWare port commands are not supported for the ATM module: •...
Page 89 Table 3-14: Changes to Port Commands Command disable ports <portlist> enable ports <portlist> show ports {<portlist>} info {detail} show ports {<portlist>} qosmonitor {egress | ingress} {discards} show ports {<portlist>} rxerrors show ports {<portlist>} txerrors Jumbo Frame Support The jumbo frame size affects the size of the payload that can be transmitted or received on an ATM port.
Page 90: Configuring Igmp Attributes
Configuring the ATM Module • No frames received from the switch backplane will be discarded due to being too large. Nor will any IP frames be fragmented. • PDUs received from the ATM link with routed protocol encapsulation will be discarded if the size of the IP packet exceeds (configured JUMBO_FRAME_MTU -22) octets.
Page 91: Configuring Layer 2 And 3 Switching Attributes
Asynchronous Transfer Mode (ATM) Module Installation and User Guide Additional ATM Module Support Topics Description of Change The slot <slot> option has been added to this command to support downloading the bootrom code to a specified ATM module rather than to one of the switch’s MSMs. 3-49...
Page 92 ATM module. When you enter the command with this option, the image is downloaded to the module in the specified slot rather than to one of the switch’s image partitions. command to select which image will load on the module in the specified slot on the next reboot.
Page 93: Extremeware Command Compatibility Information Related To The Atm Module
ExtremeWare Command Compatibility Information Related to the ATM Module This appendix summarizes the ExtremeWare command changes and additions to support the ATM module, and includes information on the following topics: • New commands added to support the ATM module on page A-1 •...
Page 94: New Extremeware Commands
New ExtremeWare Commands Table A-1 lists the new ExtremeWare commands that have been added to support the ATM module. For more information on these commands, see Chapter 3. Table A-1: New ExtremeWare Commands Command config atm add pvc <vpi | vci> encap [l2 | ip peer-ipaddress <ipaddress>] vlan <name>...
Page 95: Changed Commands
Table A-1: New ExtremeWare Commands (continued) Command config sonet threshold signal degrade <error_rate> ports <portlist> config sonet threshold signal fail <error_rate> ports <portlist> config sonet trace path <id_string> ports <portlist> config sonet trace section [<id_byte> | string <id_string>] ports <portlist> show atm {<portlist>} show atm pvc [<vpi | vci>...
Page 96: Summary Of Commands With Enhanced Syntax
Table A-2 is an alphabetical list of the existing ExtremeWare commands whose syntax has been enhanced to support the ATM module. New keywords and arguments are shown in italic typeface. Table A-2: Summary of Commands with Enhanced Syntax Command config diffserv examination code-point <code_point>...
Page 97: Summary Of Commands With Augmented Implementation
Table A-3 is an alphabetical list of the existing ExtremeWare commands whose implementation has been augmented to support the ATM module. Table A-3: Summary of Commands with Augmented Implementation Command clear counters disable jumbo-frame ports [<portlist> | all] disable ports <portlist> enable jumbo-frame ports [<portlist>...
Page 98: Commands And Functions Not Supported
Commands and Functions Not Supported None of the ExtremeWare commands associated with the following functions are supported for ATM ports: • Extreme Standby Routing Protocol (ESRP) • Dynamic Link Context System (DLCS) ™ • Intra-Subnet QoS (ISQ) • Remote Monitoring (RMON) Table A-4 is an alphabetical list of the existing ExtremeWare commands that are not supported for the ATM module.
Page 99 Table A-4: Summary of Commands Not Supported for ATM Ports (continued) Command enable isq <name> enable mac-vlan mac-group [any | group_number] ports <portlist> enable mirroring to <port> enable sharing <port> grouping <portlist> enable smartredundancy <portlist> restart ports <portlist> show ports {<portlist>} collisions 1.
Page 100: Asynchronous Transfer Mode (Atm) Module Installation And User Guide
Asynchronous Transfer Mode (ATM) Module Installation and User Guide...
Page 101 Supported MIBs and Standards This appendix lists the software standards and management information bases (MIBs) supported in relation to the ATM module. For a broader list of the software standards supported by ExtremeWare as a whole, see the “Supported Standards” appendix in the ExtremeWare Software User Guide.
Page 102: Atm Support
Support for read-only operations (GET operations, but not SET operations) is provided for selected objects in the standard ATM MIB (RFC 2515). Additional MIB objects to support ATM have also been added to the Extreme Networks private MIB. SONET/SDH Support...
Page 103: Qos And Diffserv Support
ATM module. Standards Supported for DiffServ The Extreme Networks implementation of RED is based on the well-known paper Random Early Detection Gateways for Congestion Avoidance, by Sally Floyd and Van Jacobson. The Extreme Networks implementation of RED also complies with the recommendations published in RFC 2309, Recommendations on Queue Management and Congestion Avoidance in the Internet.
Page 104 Asynchronous Transfer Mode (ATM) Module Installation and User Guide...
Page 105 ATM Adaption Layer. See AAL-5 ATM module feature summary GPP subsystem hot-swapping installing LED indicators network processors troubleshooting ATM scrambling, configuring BlackDiamond switch Asynchronous Transfer Mode (ATM) Module Installation and User Guide default slot configuration I/O modules overview 3-25 slot preconfiguration 3-25 bootrom downloading...
Page 106 DSCP mapping DVMRP Dynamic Link Context System. See DLCS electrostatic discharge (ESD), preventing damage ESRP Expedited Forwarding (EF) PHB Extreme Standby Routing Protocol. See ESRP ExtremeWare base version identifier technology release versions Generic VLAN Registration Protocol. See GVRP GPP subsystem...
Page 107 path parity errors (SONET) path payload label mismatch (PLM-P) payload data scrambling payload data scrambling, configuring per-hop behaviors. See PHBs Permanent Virtual Circuits. See PVC PHBs Assured Forwarding (AF) Assured Forwarding classes (table) Class Selector Default drop precedence levels (table) Expedited Forwarding (EF) support and configuration PLM-P event counter (SONET)
Page 108 ATM module BootROM image 2-15 upgrading the ATM module image upgrading the switch image virtual circuit identifier Virtual Circuit. See VC virtual path identifier VLANs configuration commands (table) tag mapping tag nesting tagged VLAN 802.1p and 802.1Q functions 3-25 Weighted RED.
Page 109: Index Of Commands
Index of Commands clear counters 3-46, A-5 config atm add pvc 3-9, A-2 config atm delete pvc 3-10, A-2 config atm scrambling 3-12, A-2 config diffserv dscp-mapping 3-29, 3-35, A-2 config diffserv examination code-point 3-29, 3-34, config diffserv replacement priority 3-36 config dot1p type 3-25 config dot1q ethertype 3-25 config dot1q tagmapping 3-24, 3-26, A-2...
Page 110 show diag 3-46, A-5 show ports collisions 3-46, A-7 show ports info 3-36, 3-47, A-5 show ports info detail 3-30 show ports qosmonitor 3-47, A-4 show ports rxerrors 3-47, A-5 show ports txerrors 3-47, A-5 show slot 2-10, 3-45, A-5 show sonet 3-16, 3-20, A-3 show version 3-45, A-5 unconfig diffserv dscp-mapping 3-30, A-3...

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Extreme Networks BlackDiamond 6800 Installation And User Manual

Preface

Introduction

Conventions

Related Publications

1 Overview

Blackdiamond 6800 Series Switch Overview

About the ATM Module

Front Panel View of the ATM Module

2 Installing or Replacing an ATM Module

Preparing for Installation

Slot Locations in a Blackdiamond 6800 Series Chassis

Inserting and Securing a Module

Inserting and Securing an ATM Module

Making Network Interface Cable Connections

Verifying the Module Installation

Troubleshooting

Removing and Replacing an I/O Module

3 Configuring the ATM Module

Basic ATM Module Configuration Information

Bridging over ATM Ports

Routing over ATM Ports

Configuring and Monitoring ATM Ports

Configuring and Monitoring SONET

Configuring VLAN-Related Attributes

Configuring Forwarding Database Attributes

Configuring Spanning Tree Attributes

Configuring Qos Functions

Comparisons of RED and WRED Operation

Additional ATM Module Support Topics

Extremeware Command Compatibility Information Related to the ATM Module

New Commands

Changed Commands

Commands and Functions Not Supported

Atm Support

Sonet/Sdh Support

Qos and Diffserv Support

Index of Commands

Quick Links

Related Manuals for Extreme Networks BlackDiamond 6800

Summary of Contents for Extreme Networks BlackDiamond 6800

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Table of Contents