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Cabletron Systems SmartStack STS16-20R Installation And User Manual

Cabletron systems user guide token ring switches sts16-20d, sts16-20r
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Summary of Contents for Cabletron Systems SmartStack STS16-20R

  • Page 1 SmartStack STS16-20D/STS16-20R Token Ring Switches Installation User Guide...
  • Page 3 Cabletron Systems reserves the right to make changes in specifications and other information contained in this document without prior notice. The reader should in all cases consult Cabletron Systems to determine whether any such changes have been made. The hardware, firmware, or software described in this manual is subject to change without notice.

  • Page 4: Fcc Notice

    FCC Notice This device complies with Part 15 of the FCC rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.

  • Page 5: Declaration Of Conformity Addendum

    Declaration of Conformity Application of Council Directive(s): 89/336/EEC European Representative Name: Mr. J. Solari European Representative Address: Cabletron Systems Limited Conformance to Directive(s)/Product Standards: EC Directive 89/336/EEC Equipment Type/Environment: Networking Equipment, for use We the undersigned, hereby declare, under our sole responsibility, that the equipment packaged with this notice conforms to the above directives.

  • Page 6: Table Of Contents

    Switch of Servers ..... . . 3 Switch of Hubs ......3 Switch of Desktops .
  • Page 7 External Stacker ..... . . 39 Optional Redundant Power Supply on SmartStack STS16-20R ..... 40 3. Preparing for Installation Safety Recommendations .
  • Page 8 Configuration Menu ..... . . 79 Switch Configuration Screen ....80 Stack Configuration Screen .
  • Page 9 Statistics Menu Switch Statistics Screen ....Power Supply Information Screen ....159 Port Status Screen .
  • Page 10 Community Strings Screen ....203 Trap Receivers Screen ....205 List of Supported Traps from a STS16-20D/STS16-20R . . 206 9. Monitoring Port Traffic Switched Port Analyzer Screen .
  • Page 11 11. Getting in Touch with Technical Support Problem Report Form ..... 222 Appendix A. Abbreviations Appendix B. Cable and Pin Information Connecting to the Out-of-Band Management Port Out-of-Band Management Port and Cable Pin-Outs .
  • Page 12 Figure 21. The back panel of the STS16-20D ... . . 63 Figure 22. The back panel of the STS16-20R ... . . 64 Figure 23.

  • Page 13: List Of Tables

    List of Tables Table 1. Status LEDs and their Meanings ....7 Table 2. Stack-link LEDs and Their Meanings ... . . 8 Table 3.
  • Page 14 Notice...

  • Page 15: Introduction

    1. Introduction This chapter discusses switching technology and how the SmartStack STS16-20D and/or SmartStack STS16-20R Token Ring Switch can be used to improve network performance. This chapter also includes a list of features and specifications for the SmartStack STS16-20D/STS16-20R. The topics of this chapter are presented under the following titles: •...

  • Page 16: Switching Technology

    Switch of Switches The SmartStack STS16-20D/STS16-20R can be deployed in a variety of network configurations, all of which provide a significant increase in network performance. The family of Cabletron Systems Token Ring products allows users to build network systems that can transport data efficiently and scale upwards as throughput requirements increase.

  • Page 17: Switch Of Servers

    STS16-20D/STS16-20R to be used as a switch of switches which provides media flexibility in an Token Ring configuration. The SmartStack STS16-20D/STS16-20R can easily connect with other SmartStack products to deliver a broad range of network carrying capacity. Bandwidth is easily scaled to meet all performance requirements.

  • Page 18: Switch Of Floors And Buildings

    Because of these limitations, routers and switches perform complimentary functions in the network. The SmartStack STS16-20D/STS16-20R can be used as a front-end to routers to increase performance in each subnet. Communication between local clients and servers is enhanced at the workgroup level below the router.

  • Page 19: Front Panel Details

    • The SmartStack STS16-20D/STS16-20R will automatically sense what type of Token Ring connection is being employed on each of its ports, whether it is: Introduction SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide...

  • Page 20: Reset Button

    — a connection to a dedicated-media segment, directly to a Token Ring LAN station operating in half-duplex or full-duplex mode (Port mode). — Ports 19 and 20 on SmartStack STS16-20R can attach to a MAU/CAU RI/ RO port The switch will automatically configure (requiring no operator action) each port to operate at the highest possible level of capability.

  • Page 21: Labels

    Status and Activity LEDs The SmartStack STS16-20D/STS16-20R features three status LEDs at the left on the front panel that show the current status of the switch. There are also three activity LEDs at the left that indicate the activity of the optional stacker link module.

  • Page 22: Table 2. Stack-Link Leds And Their Meanings

    (right LED of blinking port) Table 3. Port LEDs and Their Meanings SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide State Data is being transmitted to the stack link. Data is being received from the stack link. A connection has been established to the stack.

  • Page 23: Back Panel Details

    Back Panel Details The back panel of the switches are illustrated in Figure 3. The back panel of the SmartStack STS16-20D Figure 4. The back panel of the SmartStack STS16-20R Table 4 lists the back panel connectors on the switch. Name...

  • Page 24: Features And Specifications

    — RI/RO-like connection (SmartStack STS16-20R only) • Spanning tree protocol support on SmartStack STS16-20D for the designated network ports 17–20 and on SmartStack STS16-20R for all the ports 1–20: — IEEE 802.1D — IBM Spanning Tree Protocol On SmartStack STS16-20D the workstation ports 1–16 will always be in forwarding state.
  • Page 25 — On SmartStack STS16-20R up to 256 Mbps for all the ports 1–20, when using 8 ports. • Advanced filtering (MAC address / Protocol) • VLAN (Virtual LAN) support • Support for transmission priorities • Congestion control • SRB Redundancy •...
  • Page 26 — Automatic learning of network configuration — Transparent to high-level protocol — Automatic sensing and configuration of ports • A factory-assigned MAC address (the switch can also be configured with a locally administered MAC address) SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide Introduction...

  • Page 27: Specifications

    4 network/workstation ports (17 to 20) SmartStack STS16-20R: 20 network/workstation ports 8 using the SmartStack STS-8SU Stacker Unit 5 using the SmartStack STS-5SU Stacker Unit 2 using the SmartStack STS-LM Link Module 10,000 5,500 SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide...

  • Page 28: Table 6. Performance Specifications

    Within switch latency (cut- through) Table 6. Performance Specifications SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide Value 57,000 pps in each direction (measured with a frame size of 19 bytes) 200,000 pps in each direction. Full media...
  • Page 29 FCC Part 15, subpart b, Class A EN 55022 Class A CISPR 22 Class A IEC 950 UL1950 CSA C22.2 No. 950 EN 60950 TIA/EIA-232-F, DB9 male connector Flash PROM, TFTP, X-modem SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide...

  • Page 30: Table 7. Specifications Of Physical Characteristics

    STS16-20D only for ports 17 to 20) MIBs supported Network management Table 7. Specifications of Physical Characteristics SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide Value Transparent to higher layer protocols IEEE 802.1D compliant IBM Spanning Tree SNMP MIB II (RFC1213)

  • Page 31: Switch Overview

    Token Ring networks. It operates as a Media Access Control (MAC)-layer device that is protocol independent. This chapter describes how the SmartStack STS16-20D/STS16-20R operates as a single stand-alone unit. The switch contains the following main elements, as listed below: •...

  • Page 32: Multiple Simultaneous Conversations

    For example, as shown in Figure 5, while host A is transmitting a byte to host B, the SmartStack STS16-20D/STS16-20R connects only the lines from A to B since there is no need to send packets to all other ports. At the same time, a second switching circuit can connect host C to host D.

  • Page 33: Low Latency

    The increase in throughput is directly proportional to the number of physical token- rings that are interconnected through the switch. A SmartStack STS16-20D/ STS16-20R with 20 ports interconnected provides up to ten concurrent paths. With ten simultaneous conversations, the SmartStack STS16-20D/STS16-20R creates 160 Mbps throughput in half-duplex mode, or 320 Mbps throughput in full-duplex mode.

  • Page 34: Address Management

    Address Management At power up, the system address tables do not contain any information. Whenever a SmartStack STS16-20D/STS16-20R receives a packet with an unknown source or destination address, it learns the new source address and stores its location in coming port in the address table. If the destination address is unknown it sends the packet to all ports that can receive data from the incoming port.

  • Page 35: Multiple Bridging Modes

    Each port on the switch belongs to a CRF, which is a logical grouping of ports within the switch. A CRF can consist of any number of ports within a switch or a switch stack. The ports within a CRF do not have to be adjacent.

  • Page 36: Source Route Switching (Srs)

    There are two levels of relay functions supported by the SmartStack STS16-20D/ STS16-20R. The first level is the CRF to which the ports are assigned. The second level is the BRF. This is the parent relay function to which CRFs are assigned. The SmartStack STS16-20D/STS16-20R maintains certain configuration information and management statistics on a per BRF/CRF basis.

  • Page 37: Source Route Transparent (Srt)

    SRT mode to accommodate applications that do not support source routing, while still supporting duplicate MAC addresses on a number of SRB ports (for example, for SNA gateway applications). Switch Overview SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide...

  • Page 38: Filtering

    Multicast addresses to a subset of ports. This last filter applies to non-source-routing frames only. Congestion Control At regular intervals, the switch CPU inspects the queues on all output ports. If a queue size is above a certain threshold, the port is instructed to: •...

  • Page 39: Three Switching Modes

    This section describes the three switching modes available on the switch. Cut-Through In this mode the switch starts forwarding the packet to the output port as soon as the destination address or the source route of the incoming packet has been resolved.

  • Page 40: Token Ring Port Operation Modes

    The mode of operation can be configured manually or sensed automatically. Note that for SmartStack STS16-20R this is with the exception of RI/RO, when equipment is connected to the port. The media speed (4 or 16 Mbps) can also be manually configured or automatically sensed in all port modes.

  • Page 41: Ri/Ro-Like Connection On Smartstack Sts16-20R

    STP will place both ports in forward mode, and all MACs on both segments will be relearned. If a SmartStack STS16-20R port has been configured to RI/RO mode, it will automatically sense whether the port has been connected to RI or RO of the MAU.

  • Page 42: Transmission Priority Queues

    Transmission Priority Queues To address the needs of delay-sensitive data, such as multimedia, the Token Ring ports of the SmartStack STS16-20D/STS16-20R have two transmit queues, a high- priority queue and a low-priority queue. The queue for a frame is determined by the value of the priority field in the frame control (FC) byte.

  • Page 43: Crosslink Connections

    On SmartStack STS16-20D only the network ports 17–20 will allow CrossLinks. On this switch you can achieve up to 128 Mbps using four ports. On the SmartStack STS16-20R up to 256 Mbps can be achieved, using eight ports. The STS16-20/RM/STS16-20FRM switch allows up to eight CrossLinks, each consisting of up to eight Token-Ring links.

  • Page 44: Spanning Tree Protocol Support

    Protocol to be compatible with source route transparent bridges. The IEEE Spanning Tree Protocol is not compatible with the IBM Spanning Tree Protocol. The SmartStack STS16-20D/STS16-20R supports both the IEEE 802.1D Spanning Tree Protocol and IBM Spanning Tree Protocols. Note: On SmartStack STS16-20D only the network ports 17–20 support the spanning tree protocol at the port level.

  • Page 45: Vlan Support

    Frames are not forwarded across VLANs and ring numbers must be unique within a VLAN. • A VLAN consists of a number of ports of a switch or stack of switches • No frames are forwarded between ports belonging to different VLANs •...

  • Page 46: Dynamic Source Route Recovery

    When DSRR is enabled, an extra path is automatically created between the two rings for each switch, as shown in Figure 9. During normal operation, these extra paths do not forward any traffic. SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide Bridge No. B1 Bridge No. B2...

  • Page 47: Figure 9. Example Of Dynamic Source Route Recovery, Normal State

    If one of the switches (Figure 9) or its link to any of the Token-Rings fail, (one of) the remaining active switch(es) will after a short interval activate its backup path to take over the traffic of the failed switch (see Figure 10) When the failing switch has been repaired/replaced, the traffic will automatically revert to it.

  • Page 48: Figure 10. Example Of Dynamic Source Route Recovery, Switch 1 Failed

    Note that since a separate link is required for forwarding traffic with a given Route Descriptor, one switch can only carry backup traffic for one failed switch at a time. This means that a total of 2 n switches is required to handle simultaneous failure of n switches.

  • Page 49: Management

    This section describes the management options for the switch. SNMP The SmartStack STS16-20D/STS16-20R can be managed via a SNMP manager. The SmartStack STS16-20D/STS16-20R supports ten Management Information Bases (MIBs). Six of the MIBs are standard MIBs, which are defined by RFCs and are included with most SNMP management applications.

  • Page 50: Smartstack Manager For Windows

    232-F (that is, RS-232) port labeled MANAGEMENT or in-band via Telnet. IBM LAN Network Manager The SmartStack STS16-20D/STS16-20R does not support management by the IBM LAN Network Manager, but it will allow LAN Network Manager LLC frames to flow through the switch so that communication to existing LNM manageable hubs and source route bridges will be maintained.

  • Page 51: Rmon Support

    With RMON, you can have the switch monitor a particular statistic internally, and when the statistics reaches a threshold, the SmartStack STS16-20D/ STS16-20R will send a trap to the client. This monitoring method reduces traffic between the SNMP client and the SmartStack STS16-20D/STS16-20R.
  • Page 52 Name 9. Event 10. Token-Ring Table 9. Supported RMON Groups SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide Support Info Supported. Supported: — The Token-Ring Ring Station Group. Only supported as read. That is, only the entries created as default can be read. The ring station table is not supported.

  • Page 53: Built-In Port Counters

    The STS-LM Stacker Link Module is a built-in feature of the SmartStack STS16- 20D and SmartStack STS16-20R Switches, the other two stacker units are optional. The following sections describe how to stack the STS16-20x switches. Back-to-Back...

  • Page 54: Optional Redundant Power Supply On Smartstack Sts16-20R

    Optional Redundant Power Supply on SmartStack STS16-20R The SmartStack STS16-20R Token Ring Switch has an input for a backup power supply (see Figure 22. in Chapter 4, “Installation”). It is compatible with the SmartStack STS-RPC Redundant Power Center, which can supply back-up power for up to six switches, when up to six SmartStack STS-PSU Redundant Power Supply Unit are installed in the chassis.

  • Page 55: Preparing For Installation

    Read the installation instructions before you connect the system to its power source. To turn off the switch, you must disconnect the power cord; there is no on/off switch. ON/OFF switch. Note that if the switch is connected to an external Redundant Power Supply Unit (RPSU), the power cord must be removed from both units.

  • Page 56: Preventing Electrostatic Discharge Damage

    Caution: For safety, periodically check the resistance value of the antistatic strap, which should be between 1 and 10 M . SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide Preparing for Installation...

  • Page 57: Site Requirements

    Cooling and Airflow Two fans, which are located at the left side of the switch, cool the interior by drawing air through vents on the left side and forcing heated air out through holes in the right side.
  • Page 58 Caution: Support the SmartStack STS16-20D Token Ring Switch and/or the SmartStack STS16-20R Token Ring Switch while you are installing the unit to avoid dropping it on the floor or any equipment beneath it in the rack. The SmartStack STS16-20D Token Ring Switch and the SmartStack STS16-20R Token Ring Switch unit each weighs approximately 7.2 kg (15.9 lbs).

  • Page 59: Configuration Guidelines

    Configuration Guidelines This section will help you understand the physical configuration restrictions for the SmartStack STS16-20D/STS16-20R. Read the guidelines in the following sections before you start installing the switch. In brief, remember the following rules when planning to install the switch: •...

  • Page 60: Ieee 802.1D Spanning Tree

    If this is not done you may experience problems after the switch has been installed in the network.

  • Page 61: Ring Numbers

    If you are running the switch in an environment without other bridges/switches, auto-configuration of ring numbers is not possible. In this case, you have to configure the ring numbers manually. Preparing for Installation SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide...

  • Page 62: Sample Uses Of The Smartstack Sts16-20Rm Family Switches

    You will typically deploy SmartStack STS16-20D/ STS16-20R as a second step of migration from a hierarchical Token Ring network consisting of a backbone segment and workgroup segments towards a fully switched network: •...

  • Page 63: Figure 11. Typical Network Without The Smartstack

    Server Figure 11. Typical Network without the SmartStack STS16-20D/STS16-20R Figure 12. Relieving the Overstressed Backbone Preparing for Installation Server Server SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide Server...

  • Page 64: Figure 13. Replacing Srbs With A Smartstack Sts16-20Rm Or Smartstack Sts16-20R

    CRF 1 CRF 2 Figure 13. Replacing SRBs with a SmartStack STS16-20RM or SmartStack STS16-20R Figure 14. Delivering Dedicated Bandwidth to Individual Workstations SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide CRF 3 CRF 7 CRF 8 CRF 9...

  • Page 65: Deployment Scenarios

    A network port (ports 1 to 20 on SmartStack STS16-20R and ports 17 to 20 on SmartStack STS16-20D) can be used to connect two switches from the SmartStack STS16-20RM family together using existing cables.

  • Page 66: Figure 15. Scenario Using A Stacker Link And A Matrix Switch

    Figure 15. Scenario using a Stacker Link and a Matrix Switch Figure 16 on the next page shows a network design where SmartStack STS16-20D/ STS16-20R uses network ports to connect to a remote SmartStack STS16-20RM switch. In many Token Ring networks, the cabling layout requires such remote extension of rings.

  • Page 67: Figure 16. Setting Up Crosslinks

    Figure 16. Setting Up CrossLinks Preparing for Installation SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide...
  • Page 68 SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide Preparing for Installation...

  • Page 69: Installation

    Note: For information on front panel and back panel connectors, buttons, slots, and LEDs, please see “Front Panel Details” on page 5 and “Back Panel Details” on page 9 in Chapter 1. Installation SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide...

  • Page 70: Package Contents

    If you have received your equipment before your site is fully prepared, after inspection, you should keep all of the components in the original shipping containers and store them in a physically and environmentally safe place. SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide Installation...

  • Page 71: Materials Needed For Installation

    If the unit will be installed on a surface (such as a tabletop), you will need: — A cabling chart from your network administrator. — The four supplied adhesive rubber feet. — A properly earthed power cord. Installation SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide...

  • Page 72: Mounting The Chassis

    Mounting the Chassis The SmartStack STS16-20D/STS16-20R can be mounted in a standard 19-inch rack or cabinet, or can be mounted on any flat surface such as a tabletop. The installation area should be near a power source and should have enough room around the front and back panels for cabling and access to controls.

  • Page 73: Table-Mounting

    Figure 18. Mounting the Switch in a Rack or Cabinet Table-Mounting The SmartStack STS16-20D/STS16-20R operates at a low noise level, which makes it suitable for a large enough flat surface such as a table. Four self-adhesive pads are supplied with the switch. The pads must be mounted in the four recesses on the bottom of the switch.

  • Page 74: Cabling

    Connecting Devices to the Token Ring Ports If you will not be using building wiring (in-the-wall cables) to connect the device to the SmartStack STS16-20D/STS16-20R, perform the following steps. If you will be using building wiring, follow the steps beginning with step 1 on page 61.

  • Page 75: Using Building Wiring

    2. Label the faceplate, so that it will be easier to find the device if you have to troubleshoot a network problem. 3. In the wiring closet, connect a cable to the Token Ring connector on the patch panel or other equipment where the building wiring terminates. Installation SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide...

  • Page 76: Checking The Installation

    Note: Do not connect these cables to the Ring-In or Ring-Out port on a media access unit (MAU), unless you use ports 19 and 20 on STS16-20R. 4. Connect the other end of the cable to a Token Ring port on the switch.

  • Page 77: Applying Power

    Applying Power The SmartStack STS16-20D/STS16-20R chassis does not have an on/off switch. Power is on when the unit is plugged into a power source. There are no user serviceable parts inside an SmartStack STS16-20D/STS16-20R. Any internal upgrades or service should be performed by qualified personnel only.

  • Page 78: Figure 22. The Back Panel Of The Sts16-20R

    LEDs for the SmartStack STS16- 20D/STS16-20R. Note: If the SmartStack STS16-20D/STS16-20R fails to power up correctly or if it encounters any unrecoverable error, the ERR LED will be on or flashing on. If the ERR LED is on or flashes, see Chapter 10, “Troubleshooting”.

  • Page 79: Stacker Link Module

    Stacker Link Module The SmartStack STS-LM Internal Stacker Unit which is factory installed in the SmartStack STS16-20D/STS16-20R switch is a single port interface module that is installed into the back slot of the Switch. When SmartStack STS16-20RM family Switches are connected through SmartStack STS-LM Modules, the switches can be combined to form one logical switch.

  • Page 80: Smartstack Sts-Lm Connectors And Leds

    When connecting two or more stacker link modules together to form a stack, you must use the proprietary 50-pin cable supplied with the module. The SmartStack STS16-20D/STS16-20R switch can be configured in three different ways to form a stack of switches: •...

  • Page 81: Working With A Stack

    Working with a Stack When the SmartStack STS16-20D/STS16-20R switch powers up, it runs through a series of diagnostics. Immediately after the diagnostics are complete, the SmartStack STS16-20D/STS16-20R enters the stack discovery mode. The discovery mode is used to sense if the unit is cabled to other SmartStack STS16- 20D/STS16-20R units.

  • Page 82: Checking The Installation

    Table 12. Inter-box Parameters Checking the Installation The SmartStack STS16-20D/STS16-20R performs a diagnostic self-test during the power on cycle. From a management console, check that the switch lists the SmartStack STS-LM port along with the switch ports and that there are no error messages.

  • Page 83: Accessing Switch Management

    Network management applications (in-band management) are beyond the scope of this guide. However, note that to be able to manage the switch by the network management application via SNMP, you will have to configure a few settings first in the switch console.

  • Page 84: Connecting The Console

    Figure 24. View of Console Connection The next step and table describe the settings to use for configuring a console in order to communicate with the SmartStack STS16-20D/STS16-20R. SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide Accessing Switch Management...

  • Page 85: Table 13. Console Configuration Settings

    3. Use the values listed in the following table to set the configuration parameters on your console for interfacing to the SmartStack STS16-20D/STS16-20R. Specification Baud Rate Parity Data bits Stop bits Handshaking Terminal emulation Duplex Software flow control (XON/XOFF) Hardware flow...

  • Page 86: Communication Problems

    Table 13. Console Configuration Settings 4. At power on (cold boot), the SmartStack STS16-20D/STS16-20R performs a series of self-test diagnostics verifying that hardware components are functioning. An example of the self-test diagnostic screen is shown later in this chapter.

  • Page 87: Diagnostic Screen

    - RJ-45 Token Ring: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 - StkPort : 29 - Initializing Ports: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 Accessing Switch Management SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide...
  • Page 88 Then release it and select Point 4. Clear the system password. This will clear both the Read-Only and the Read/Write password. SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide to enter the main menu. The contents ENTER (RETURN)

  • Page 89: Switch Configuration

    6. Switch Configuration This chapter explains how to set up the SmartStack STS16-20D/STS16-20R and to modify the configuration using a VT100 console attached to the switch directly or via a modem connection. The switch configuration can also be modified from a remote VT100 console via a telnet session.

  • Page 90: General Guidelines

    They can read everything (except the SNMP communities). Read-write users: These users have full access to all configuration parameters. SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide . If you need to specify additional information for that ENTER ENTER...

  • Page 91: Navigating Within The Menus

    Unless specified differently, all the screens and menus are accessed in the same way. The following section describes the items on the main menu. Switch Configuration and the main menu is presented. ENTER SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide Password. ENTER...

  • Page 92: Main Menu

    Displays the Reset menu that is explained starting from page 152. Exit Console Highlighting this command and pressing greeting screen (on a Telnet session, this will cause the session to close). SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide will return the console to the ENTER Switch Configuration...

  • Page 93: Configuration Menu

    Open this menu by selecting Configuration in the main menu. From the Configuration menu you can view and set the switch configuration parameters. This chapter describes all submenus and screens. Switch Configuration SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide...

  • Page 94: Switch Configuration Screen

    The following explains the fields in the Switch Configuration screen. System Description Name and model of the switch, or, in the case of a stack, the generic stack name. In addition to this, the firmware release is displayed. Information in this field cannot be changed.
  • Page 95 This is ensured by assigning MAC address to BRF’s from the Switch Base Address + 32 (0x20) and upwards. The SmartStack STS16-20D/STS16-20R is designed in such a way, that it operates with 63 active Switch Configuration...
  • Page 96 The MAC address of the default BRF (trnet-default) will always be the switch base address + 32. If the switch operates in a stack, only one of the switches will operate the bridge relay function. Hence the MAC address of the default BRF will be based on the address of the stackmaster.

  • Page 97: Stack Configuration Screen

    Number of switches currently participating in the stack. Display only. Local Box Number Number assigned to the currently selected switch. The local box is also the source of the information displayed on this screen. Display only. Switch Configuration SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide...

  • Page 98: Module Information Screen

    Number of switches (in addition to this one) in the stack. Display only. Stack Time-out If a switch goes off line, the length of time (in seconds) during which the stack tries to reestablish communication with the switch. The default is 16 seconds.
  • Page 99 Whether the module is up, down, failed, or the slot is empty. Model Type of module. The switch is listed for the base switch. For this module as well as for others, this field displays the product number. Board ID Decimal identifier of the module.

  • Page 100: Vlan Configuration

    Token Ring switch unit. Certain MIB II objects and proprietary objects are domain-sensitive, while others are not. For a list of domain-sensitive objects, see Chapter 7, “Monitoring the Network from the Console Statistics Menu”. SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide Switch Configuration...

  • Page 101: Vlan Configuration Menu

    To open this screen from the main menu, select Configuration Configuration. See the section “VLAN Support” on page 31 for a discussion of VLANs. More information on the various submenus follows. Switch Configuration SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide VLAN...

  • Page 102: Vlan Configuration Screen

    MAC address. Moreover, it is not possible to assign IP addresses to it. Return Returns to the previous menu. More Scrolls or refreshes the display. SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide VLAN Configuration. VLAN Switch Configuration...

  • Page 103: Vlan Parameter Configuration For Crf Screen

    Use this screen to add or change a CRF. Note that the trcrf-default cannot be deleted. Also, the trcrf-default cannot be assigned to other BRFs. The following information is displayed on this screen: Switch Configuration SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide...
  • Page 104 1 through 13. The default is 7. TS Connection This parameter is only relevant if the switch is part of a stack equipped with a SSIM-H2-02 Fast Ethernet - Translational Switch SmartStack Interface Module. It can be set to Primary (default) Secondary1, and Secondary2.

  • Page 105: Vlan Parameter Configuration For Brf Screen

    Use this screen to add or change a BRF. Note that the trbrf-default cannot be deleted. VLAN ID Numeric ID of the BRF. Possible values are 1 through 1005. Values 1002 through Switch Configuration VLAN Configuration SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide...
  • Page 106 LAA VLAN MAC Address Used to configure a LAA MAC address used for in-band management of the switch. Note! The switch must be rebooted before this configuration takes effect. SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide Switch Configuration...

  • Page 107: Vlan Port Configuration

    • For translational switching ports. CRF to which the port is currently assigned. Parent BRF of the CRF to which the port is currently assigned. Switch Configuration VLAN Port Configuration. SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide VLAN...

  • Page 108: Ip Configuration Screen

    IP assignment. Interface MAC Address Displays the MAC address assigned to this BRF. IP Address Used to configure the IP address of the switch in the selected VLAN (BRF). To change it, highlight the field and press Default: 192.0.2.1 Default Gateway Used to configure the default gateway.
  • Page 109 Configuration menu and enter the IP Configuration screen before attempting to ping. Otherwise the old values will be used. Switch Configuration . The meaning of these values ENTER SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide ENTER...

  • Page 110: Bootp Requests And Parameters

    TFTP Server Address (only recognized if the Bootfile name is present) One other parameter, the TFTP VLAN, is inferred whenever a TFTP Bootfile name is present in the BootP response. That is, if the SmartStack STS16-20D/STS16-20R receives a BootP response that specifies a TFTP Bootfile name, the SmartStack STS16-20D/STS16-20R automatically records the VLAN on which the response was received as the TFTP VLAN number.

  • Page 111: Snmp Configuration Menu

    If one of the network segments in the tree becomes inaccessible, STP reconfigures this tree to reestablish the links. To prevent loops, STP selects just one SmartStack STS16-20D/STS16-20R port as the designated path to the root, assigning it the Forwarding, or active state. It assigns all other ports the blocking, or standby, state.

  • Page 112: Ieee 802.1D Spanning Tree Protocol (Stp)

    If more ports have the same priority value assigned, the lowest port number will be selected. Note! All bridge relay functions in the switch use the same bridge identifier. As a consequence, you must not divide one switch into two or more VLANs by connecting them together and using the spanning tree protocol.

  • Page 113: Spanning Tree For Brf Screen

    IBM Source Route Spanning Tree Protocol and block or forward Spanning Tree Explorer frames. Other frames are forwarded by the bridge relay function. Switch Configuration Spanning Tree. A list containing available BRF SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide...
  • Page 114 Enter the maximum message age advertised when this BRF is root. The minimum value may not be less than the higher of 6 or (2 x (Switch Hello Time + 1)). The maximum may not be more than the lower of 40 or (2 x (Switch Forward Delay –...

  • Page 115: Spanning Tree For Crf Screen

    The minimum may not be less than the larger of 4 or ((Switch Maximum Message Age / 2) +1). The maximum may not be higher than 30. The lower range limit that appears reflects the value currently selected for Switch Maximum Age.
  • Page 116 CRF as Priority.MAC address (the MAC address is the base MAC address of the switch + an internal number for the CRF). The spanning tree entity with the lowest bridge id in a spanning tree becomes the root.
  • Page 117 The time this CRF spanning tree instance waits before sending the next Hello BPDU message when this entity is the root in STP. The default is 2. The minimum value is 1. The maximum value is the lower of 10 or ((Switch Maximum Message Age / 2) – 1).

  • Page 118: Port Spanning Tree Parameters Screen

    1 through 255 (decimal). If all ports have the same priority value and path cost, the port with the lowest number becomes forwarding and forwards the frames. SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide Spanning Tree. A list...

  • Page 119: Current Spanning Tree Information Screen

    A summary of STP information for each port is available from the “Current Spanning Tree Information” screen. See Chapter 7, “Monitoring the Network from the Console Statistics Menu” on page 185 for more information. Switch Configuration SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide...

  • Page 120: Port Configuration Screen

    2. You will be prompted for a port number. When you have entered the port number, the Port Configuration screen for that port will be displayed. For the base switch ports, the screen will look as in the following example screen. For the interface module ports, refer to the interface module guide.
  • Page 121 Determines whether the port is enabled for Early Token Release (ETR). Possible values are Yes and No. The default is Yes. If Early Token Release is set to Yes and the media speed is 4 Mbps, the switch will force Early Token Release to No. Switch Configuration...
  • Page 122 This field is only valid when Forwarding Mode is set to auto. It specifies a sampling period in minutes. The sampling period is used when counting errors to determine a port’s forwarding mode. Possible values are 1–60 minutes. The default value is 10. SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide Switch Configuration...
  • Page 123 The port will simulate a NIC and connect to an existing MAU/LAM. • RI/RO For SmartStack STS16-20R only, ports 19 and 20. Allows the switch to connect to the RI/RO connector of a MAU or CAU. Note: If you change any configuration parameters of a connected port, the port will close and reopen and you will lose all address information and statistics for that port.

  • Page 124: Switched Port Analyzer Menu From The Configuration Menu

    CrossLink containing three ports can have two full-duplex and one half-duplex connections. However, each pair of interconnected ports must both be either half-duplex or full-duplex. SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide Switch Configuration...
  • Page 125 Link failure. If one link in a CrossLink fails, a trap is sent, and the CrossLink connection continues with the rest of the links. If the link that is going down is the primary port, a new primary port will be selected instead. Switch Configuration SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide...

  • Page 126: Crosslink Menu

    CrossLink Menu To open this menu from the main menu, select Configuration Use the CrossLink menu to access the CrossLink Configuration and Information screens. SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide CrossLink. Switch Configuration...

  • Page 127: Crosslink Configuration Screen

    Asks whether you want to remove the entry; then deletes the selected CrossLink. Change Entry Prompts you to reenter the port numbers in the selected CrossLink, from lowest to highest, separated by spaces. Switch Configuration SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide...

  • Page 128: Setting Up A Crosslink

    CrossLink. Use at least 2 ports, on SmartStack STS16-20D no more than four and on SmartStack STS16-20R no more than eight. Observe the following precautions and use the following steps to set up a CrossLink: •...

  • Page 129: Current Crosslink Information Screen

    The number of the CrossLink referring to the information displayed on the present screen. State Whether the specified CrossLink is active or not. Ports What ports are in that CrossLink. Switch Configuration SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide...

  • Page 130: Address Filtering

    Filters are port specific and applied to a switch’s incoming traffic only. • Up to 250 “filters” can be created for each switch (the filters must be applied to specific ports at a specified switch). A “filter” is a combination of a MAC address and the “type”...

  • Page 131: Filters And Port Security Menu

    Displays the Configure Port Security mode screen, where you can establish address security at specific ports. View Port Filters... Displays the View Port Filters screen, where you can view port filters for a specific port. Switch Configuration SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide...

  • Page 132: Configure Filters Screen

    Block any packet with source address—Block Src — That is, any packet from that specific address is blocked from entering the specified port(s). • Block any packet with destination address—Block Dest SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide Filters & Port Switch Configuration...
  • Page 133 • Allow any packet with destination address—Allow Dest — If a packet is sent to a specified address, it is allowed to enter the switch through the specified port(s). This feature is used in conjunction with port security. •...

  • Page 134: Configure Port Security Mode Screen

    Configure Port Security Mode Screen This function disables address learning of source and/or destination addresses at specified ports on an SmartStack STS16-20D/STS16-20R. Port security totally blocks (secures) these ports. Port security mode is used in conjunction with port filtering. Configure a port security mode on a port and then use “allow” filters to selectively control traffic through that port.

  • Page 135: View Port Filters Screen

    • This address is blocked • This address is allowed to talk to ports (as specified) • This address cannot be reached from this port Switch Configuration Filters & Port Security. SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide...

  • Page 136: Protocol Filters Menu

    The Protocol Filters menu provides access to the Protocol Class Assignment screen and the Port Filtering Attributes screen: SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide Filters & Port Switch Configuration...

  • Page 137: Protocol Class Assignment Screen

    For the selected port, use the Class field to select a class to modify. Ethertype The Ethernet protocol type that you want to filter. You can specify one Ethertype Switch Configuration SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide...

  • Page 138: Port Filtering Attributes Screen

    All - Block all frames in this protocol class. • SR - Block all source-routed frames in this protocol class. • NSR - Block all non-source-routed frames in this protocol class. SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide Filters & Port Security. Then Switch Configuration...
  • Page 139 CRFs for this protocol class. Ethertype Information column showing the Ethertype defined for this class. DSAPs Informational column showing the DSAPs currently in this class. Switch Configuration SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide...

  • Page 140: Address Aging

    — sequentially aged from the top of the Address Aging table to the bottom of the table • Random local addresses • Sequential local addresses More information on address aging and the address aging screens is presented in the following sections. SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide Switch Configuration...

  • Page 141: Address Aging Menu

    The screens opened from this menu are described in the following sections. Port Address Table Aging Screen To open this menu from the main menu, select Configuration Address Aging. Then select Port Address Table Aging... Switch Configuration SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide...
  • Page 142 If the table fills again, the aging process continues to cycle in the same manner. The default value is 90%. SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide Switch Configuration...

  • Page 143: Master Address Table Aging Screen

    9999 minutes. A value of 0 will disable the removal of addresses based on age. Demand Aging Level This parameter works in the same way as port demand aging level, only using the system address table. The default value is 90%. Switch Configuration SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide...

  • Page 144: Password Menu

    The system prompts you to enter the present password before it allows you to change or delete the password. If you are establishing a new password, press at the Set Password prompt. SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide Password. ENTER...
  • Page 145 Point 4. Clear the system password. This will clear both the Read-Only and the Read/Write password. Switch Configuration SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide...

  • Page 146: Console/Telnet Sessions

    If the value is set to zero, the console will never time out. Default is 5 minutes. Note: You cannot select Serial Link Configuration if you are accessing the configuration program via Telnet. SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide ENTER Console Switch Configuration...

  • Page 147: Serial Link Configuration Screen

    Serial Link Configuration Screen Use the Serial Link Configuration screen to configure a SmartStack STS16-20D/ STS16-20R when using a modem to create a console session. To open this screen from the main menu, select Configuration Console Configuration. Then select Serial Link Configuration.

  • Page 148: Creating A Console Session Using A Modem

    Creating a Console Session Using a Modem Use the Serial Link Configuration menu to configure the SmartStack STS16- 20D/STS16-20R in order to communicate with a console via a modem. Set your modem according to the following table: Echo...

  • Page 149: Telnet Configuration Screen

    Local Telnet sessions. Note: You cannot select Number of Telnet Sessions Allowed, Disallow New Telnet Sessions, or Terminate All Active Telnet Sessions if you are accessing the configuration program via Telnet. Switch Configuration SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide...

  • Page 150: Telnet Sessions Screen

    2. On the Telnet Configuration screen, select Telnet Sessions... Index Numerical order of entries. The box number ID of the SmartStack STS16-20D/STS16-20R in a stack. Remote Lists the IP address and the port number of the Remote Telnet session. Local Lists the IP address and the port number of the Local Telnet session.

  • Page 151: Starting The Telnet Session

    — Default gateway — Subnet mask — IP state • The Telnet session also times out if there has been no activity for 5 minutes. Switch Configuration or any other means available CTRL-B SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide...
  • Page 152 Information Session screen or Virtual LAN IP Configuration screen, and save the changes using the Exit command from the screen, you will lose the connection to your Telnet session, even if the IP parameters you change are in another VLAN. SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide Switch Configuration...

  • Page 153: Syslog Daemon Screen

    Any message that is entered into the message log of the switch is also sent to up to 20 syslog receivers using IP UDP communication. There are two types of messages in the switch, Warnings and Info messages.
  • Page 154 Change Entry Modifies an existing entry. Zoom Displays more information. SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide Switch Configuration...

  • Page 155: Dsrr Configuration

    Token-Rings) to handle link or switch failures without session loss. During normal operation, each switch forwards frames containing a Specific Route Descriptor. If a switch or its link to the legacy or emulated Token-Ring fails, another switch will after, typically, less than 3 seconds start forwarding frames containing the Route Descriptor associated with the failing switch.

  • Page 156: Figure 27. Primary And Traced Dsrr Port

    If a BRF, for which a DSRR group is created, has more than two CRFs, the primary and the traced ports must be in the same box. Primary port Figure 27. Primary and Traced DSRR Port SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide Bridge No. B1 Backup BRF Inactive...

  • Page 157: Dsrr Group Configuration Screen

    Group ID and with primary ports connected to the same ring will provide backup for each other. Enabled This column shows if the switch participates actively in the group. Switch Configuration SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide...

  • Page 158: Dsrr Configuration Screen

    Select View or Change to view or edit a group. You will be prompted for the Index (Ix) of the group. The DSRR Configuration screen will appear. Select Add to create a new group. You will be prompted for Box (if the switch is stacked), Port, and Group. The DSRR Configuration screen will appear.
  • Page 159 Group Priority Whenever more than one switch is able to take over from a failed switch, the one with the highest priority will be chosen. Possible values are 0–255, the default is 100. Hello Time Interval between hello packets sent by DSRR for this group. Possible values are 100–600,000 milliseconds, the default is 500.
  • Page 160 This is the ATM address that identifies the Lan Emulation Client implementing the Virtual ATM Traced Port (when applicable). You cannot change the value of this parameter. Return Saves the changes made on the screen and returns to the previous menu. SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide Switch Configuration...

  • Page 161: Download/Upload Menu

    Download/Upload Menu As enhancements are made to the switch, you may need to update the software that is contained in the switch. Or you may wish to save the configuration, that is, upload the configuration files. The files may be needed if the switch is replaced.

  • Page 162: Serial Link Download Screen

    To open the Download/Upload menu, select Download/Upload in the main menu. Serial Link Download Screen Open this screen from the main menu by selecting Download/Upload Download. This screen is for downloading via the Out-of-Band management port. SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide Serial Link Switch Configuration...

  • Page 163: Tftp

    TFTP is intended for use during software upgrades and during saving/restoring configurations. The TFTP function in the SmartStack STS16-20D/STS16-20R is designed as an explicitly requested operation with operator settable parameters. Note that changes to these parameters may be altered and will be used when starting a download in the display, however, they are not recorded until the display is exited normally.

  • Page 164: Tftp Download/Upload Screen

    Select the required function and input the path and filename of the file the SmartStack STS16-20D/STS16-20R attempts to download or upload, as it is to be received and interpreted by the TFTP server. (The security mode in use on the TFTP server may affect this function.)
  • Page 165 Note: Be careful - if the process is interrupted during this time, the stored image may be corrupted and the SmartStack STS16-20D/STS16-20R will not be able to boot normally! If this happens, it is necessary to download the switch via its Out-...

  • Page 166: Reset Screen

    Number of Resets Since Diagnostics Number of times the switch has been reset since the switch was powered on or ran power-on diagnostics. This is an informational heading; the data cannot be changed. This number is not reset to 0 when nonvolatile RAM is cleared.
  • Page 167 This is a selectable option that determines whether diagnostics are, or are not, initiated during a SmartStack STS16-20D/STS16-20R power-on sequence. To change the selection, highlight the item and press Disabled, and press Default: Enabled Switch Configuration ENTER SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide ; then select Enabled or ENTER...
  • Page 168 SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide Switch Configuration...

  • Page 169: Monitoring The Network From The Console Statistics Menu

    Network Manager and existing source route bridges and controlled access units is maintained. However, some error reporting functions and ring map functions might be lost for the rings attached to the SmartStack STS16-20D/STS16-20R. Monitoring the Network from the Console Statistics Menu...

  • Page 170: Statistics Menu

    “General Guidelines” on page 76 and “Navigating within the Menus” on page 77 in Chapter 6, “Switch Configuration”. The following pages contains information on the submenus and screens. SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide Monitoring the Network from the Console Statistics Menu...

  • Page 171: Switch Statistics Screen

    Note: References to “frames” in this menu refer to the frames that are handled by the CPU within the switch, for example SNMP requests. The Port Statistics screen (described in a later section) refers to frames handled by the ports on the switch. System Up Time Time passed since the last reset or power cycle.
  • Page 172 Number of times the hash table reached capacity. Used for technical system evaluation and troubleshooting. Reset Resets the switch statistics on this screen. SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide Monitoring the Network from the Console Statistics Menu...

  • Page 173: Power Supply Information Screen

    To open this screen from the main menu, select Statistics Information. This screen displays information about any installed internal or external power supplies. Monitoring the Network from the Console Statistics Menu SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide Power Supply...

  • Page 174: Port Status Screen

    Indicates if the port is currently inserted into the ring. Possible values are Yes and The Token Ring media speed. Possible values are 4 and 16. SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide Port Status. Monitoring the Network from the Console Statistics Menu...
  • Page 175 The forwarding mode that will be used for transmit. Possible values are: • Cut-Thru—cut-through • Store-Fwd—store-and-forward For ports operating at a speed of 4 Mbps, the only possible mode is Store-Fwd. Monitoring the Network from the Console Statistics Menu SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide...

  • Page 176: Port Statistics Menu

    To enter the menu, you must first enter a port number. The screens you can access from this menu are described on the following pages. SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide Port Status. Monitoring the Network from the Console Statistics Menu...

  • Page 177: General Statistics Screen

    Number of Spanning Tree Explorer frames forwarded by the port. ARE Frames Forwarded Number of All Route Explorer frames forwarded by the port. Monitoring the Network from the Console Statistics Menu SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide...
  • Page 178 Largest Number of Stations The maximum value of the number of local stations on this port at any time since reset of statistics. SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide Monitoring the Network from the Console Statistics Menu...
  • Page 179 Explorer Overflow Indicates the number of times that an explorer frame has been dropped because of explorer rate throttling. Monitoring the Network from the Console Statistics Menu SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide...
  • Page 180 Heart Beat - Heart beat failure. • FDX New Sta - FDX new station. • Auto-Disable reason. Last Reset Time since last reset of port statistics. SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide Monitoring the Network from the Console Statistics Menu...

  • Page 181: 802.5 Statistics Screen

    Standby Monitor Present (SMP) frame in which both the address recognized (A) bit and the frame copied (C) bit are set to 0, indicating that no station has recognized Monitoring the Network from the Console Statistics Menu Port Statistics. SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide...
  • Page 182 It denotes the number of times this port is either transmitting or receiving beacon MAC frames. Signal Loss The number of times this port has detected the loss of signal condition from the ring. SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide Monitoring the Network from the Console Statistics Menu...
  • Page 183 The number of times the port has detected that the frequency of the incoming signal differs from the expected frequency by more than that specified by the IEEE 802.5 standard. Monitoring the Network from the Console Statistics Menu SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide...

  • Page 184: 802.5 State Information Screen

    Opened, Closed, Opening, Closing. Ring Open Status This field indicates the success, or the reason for failure, of the station’s most recent SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide Port Statistics. Monitoring the Network from the Console Statistics Menu...
  • Page 185 The bit mask of all Token Ring functional addresses for which this port will accept frames. Uptime When Beacon The time the switch had been running when the last beacon was sent on this port. Monitoring the Network from the Console Statistics Menu SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide...

  • Page 186: 802.5 Dtr Mac Information Menu

    The 802.5 DTR MAC Information menu provides access to the appropriate DTR information screen. TXI Information... Displays the TXI Information screen. Station-CPort Information... Displays the Station-CPort Information screen. SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide Port Statistics. Monitoring the Network from the Console Statistics Menu...

  • Page 187: Txi Information Screen

    Physical location of the sending ring station. This field displays the value set by the Assign Physical Drop Number subvector X'04' of the Change Parameters or the Monitoring the Network from the Console Statistics Menu SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide...
  • Page 188 Beacon Received, Remove, Internal Error, Station/CPort Err, Wire Fault, Claim Received, Purge Received, Standby Received, Invalid SA, Act Mon Recvd, Phantom Loss, and Dup Addr Det. SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide Monitoring the Network from the Console Statistics Menu...

  • Page 189: Station-Cport Information Screen

    Individual Address Count subvector X'21'. This field will always display the value 1. Station Phantom Drive Support This field displays the MAC’s support of Phantom Drive and Wire Fault detection. Monitoring the Network from the Console Statistics Menu SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide...
  • Page 190 PPV(AP_MASK). Possible values for this field are TKP, TXI and TKP+TXI. Common Policy Flags This field displays the station policy flags as a hexadecimal value of the form “0x####”. SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide Monitoring the Network from the Console Statistics Menu...

  • Page 191: Address Tables Menu

    Use this menu to select which address table statistics you want to view. The following pages describes the screens you access from this menu. Monitoring the Network from the Console Statistics Menu SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide Address Tables.

  • Page 192: Master Address Table Screen

    To open this menu from the main menu, select Statistics Master Address Table. This screen contains MAC addresses of all the ports known to the SmartStack STS16-20D/STS16-20R. The table can contain up to 10,000 entries memory. See a detailed description of MAC addresses on page 81. Address MAC address of a node.
  • Page 193 — Present on all ports. • STP Multicast-IBM — The functional address used as a destination address in IBM Spanning Tree Protocol frames. Monitoring the Network from the Console Statistics Menu SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide...

  • Page 194: Master Route Descriptor Table Screen

    This table lists the learned route descriptors in the switch master table. These descriptors are contained within the 10,000 entries allowed for the master address table. SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide Address Tables Monitoring the Network from the Console Statistics Menu...
  • Page 195 (bridge) because the target station has not sent any response frames. Ports Ports of the switch whose address table includes this route descriptor. Monitoring the Network from the Console Statistics Menu SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide...

  • Page 196: Vlan Address Table Screen

    3. Select a CRF, when prompted. The VLAN Address Table screen appears. For a description of the fields and their meanings, see the section “Master Address Table Screen” on page 178. SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide Address Tables. Monitoring the Network from the Console Statistics Menu...

  • Page 197: Vlan Route Descriptor Table Screen

    3. Select a CRF, when prompted. The VLAN Route Descriptor Table appears. For a description of the fields and their meaning, see the section “Master Route Descriptor Table Screen” on page 180 above. Monitoring the Network from the Console Statistics Menu SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide...

  • Page 198: Locate Mac Address Screen

    The port type, as described in the Master Address Table screen, see page 178. VLAN The first VLAN to which the MAC address is known. SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide Address Tables. Monitoring the Network from the Console Statistics Menu...

  • Page 199: Current Spanning Tree Information Screen

    The VLAN ID of the CRF that is closest to the root. This SmartStack STS16-20D/ STS16-20R communicates with the root through this CRF. Monitoring the Network from the Console Statistics Menu SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide Current Spanning...
  • Page 200 • FWD (Forwarding) The rules that define the state of the port are as follows: SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide A more effective way to the root bridge exists. Removing old address entries. Learning new address entries.
  • Page 201 Port on the designated bridge through which this SmartStack STS16-20D/STS16- 20R will communicate with the root of the spanning tree. This information is useful if the SmartStack STS16-20D/STS16-20R is the designated bridge on one or more network segments. # Chgs...

  • Page 202: Current Spanning Tree Information For A Crf Screen

    Priority and MAC address of the root bridge. Root Port Number of the port on this switch that is closest to the root. This switch communicates with the root through this port. This field might show Internal if the root port is between the CRF and the BRF.
  • Page 203 Cost for a packet to travel from this port to the root in the current spanning tree configuration. Found by adding all path cost to the root when using the designated port. Monitoring the Network from the Console Statistics Menu SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide...
  • Page 204 Dsg PId (Designated Port Identifier) Port on the designated bridge through which this switch will communicate with the root of the spanning tree. This information is useful if the switch is the designated bridge on one or more network segments.

  • Page 205: Vlan Statistics

    Largest number of MAC addresses in the master address table—since the last reset or power cycle—that are recognized as belonging to this CRF. Monitoring the Network from the Console Statistics Menu VLAN Statistics. SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide...

  • Page 206: Vlan Statistics For Brf Screen

    VLAN. Display Members... Selecting this item will open a new screen that lists all CRFs that are members of the BRF. SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide VLAN Statistics. Monitoring the Network from the Console Statistics Menu...

  • Page 207: Dsrr Status Screens

    Select View Neighbor or View Backup to view status tables for a group. You will be prompted for the Index (Ix) value of the DSRR group. The table screen will then appear. Monitoring the Network from the Console Statistics Menu SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide DSRR Status:...

  • Page 208: Dsrr Neighbor Table Screen

    More Displays the next entry (sorted by MAC Address). Return Closes the screen and returns to the DSRR Status Tables screen. SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide DSRR Status. Monitoring the Network from the Console Statistics Menu...

  • Page 209: Dsrr Acting As Backup Table Screen

    Then select View Backup. You will be prompted for the Index (Ix) value of the group, then the screen will appear. This screen contains an entry for each switch for which the local switch is presently acting as active backup. The items on the screen are described.

  • Page 210: Diagnostic Test Results Screen

    If this menu is reporting errors and you can not find a cause, contact your local place of purchase. SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide Diagnostic Test...

  • Page 211: Message Log Information Screen

    Message type. Possible values are: • W—Warning • I—Informational Message Content The full text of the message. More Shows the next screen. Monitoring the Network from the Console Statistics Menu SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide Message Log...
  • Page 212 Back Shows the previous screen (if any). Start/End Move to the first or last page. Clear Clear all messages. SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide Monitoring the Network from the Console Statistics Menu...

  • Page 213: Display Summary Screen

    The information is suitable for saving to an ASCII file by means of a capture function in the terminal emulation program used. This file will often be requested by the Cabletron Systems technical support personnel in case of troubleshooting:...
  • Page 214 SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide Monitoring the Network from the Console Statistics Menu...

  • Page 215: Monitoring The Network With Snmp

    8. Monitoring the Network with SNMP This chapter explains how to monitor the SmartStack STS16-20D Token Ring Switch and the SmartStack STS16-20R Token Ring Switch from a network management system using an application that supports Simple Network Management Protocol (SNMP).

  • Page 216: Snmp Configuration

    The default setting is No. The following groups are supported: • Token-Ring Statistics (MAC and Promiscuous) • History • Event • Alarm See detailed description of RMON Support on page 37. SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide SNMP Monitoring the Network with SNMP...

  • Page 217: Community Strings Screen

    Configuration Community Strings. Use this screen to configure the community string for the SmartStack STS16-20D/ STS16-20R. The community string is a name (password) associated with the specified privilege level. Note: Text within the community string is upper/lower case sensitive. Monitoring the Network with SNMP...
  • Page 218 SNMP information. Add Entry Adds community string. Delete Entry Deletes community string. Change Entry Modifies community string and/or access mode. Clear Table Deletes all community strings. SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide Monitoring the Network with SNMP...

  • Page 219: Trap Receivers Screen

    Configuration Trap Receivers. Trap receiver tables tell the SmartStack STS16-20D/STS16-20R where to send traps. The table contains the IP address associated with an SNMP trap manager. The Trap receiver table contains a maximum of 20 entries. It is redisplayed each time the table changes.

  • Page 220: List Of Supported Traps From A Sts16-20D/Sts16-20R

    The Trap-PDU of type linkUp contains as the first element of its variable-bindings, the name and value of the ifIndex instance for the affected interface. The authenticationFailure Trap SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide Monitoring the Network with SNMP...
  • Page 221 This trap is generated when there is a change in the stack configuration, that is, when either a new switch is added to the stack or a switch leaves a stack. STS16NumSwitches indicates the current number of switches which are part of the stack.
  • Page 222 Forwarding state to the Blocking state. The trap is not sent if a newRoot trap is sent for the same transition. Note: On the SmartStack STS16-20D, only ports 17 to 20 support the spanning tree protocol. Traps for CrossLinks STS16CrossLinkFailed SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide Monitoring the Network with SNMP...
  • Page 223 This trap is sent when one of the links in an CrossLink fail. The variable STS16CLPorts contains the ports which are operational in the CrossLink. Note: On SmartStack STS16-20D only ports 17 to 20 allow CrossLinks to be configured. Monitoring the Network with SNMP SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide...
  • Page 224 SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide Monitoring the Network with SNMP...

  • Page 225: Monitoring Port Traffic

    9. Monitoring Port Traffic The SmartStack STS16-20D/STS16-20R allows you to configure a Switched Port Analyzer function for monitoring traffic on a port. An analyzer port is a port on which an external probe can observe traffic from any other port, that is a monitored port.
  • Page 226 MAC frames are copied from the monitored port and since the analyzer port does not itself run the MAC protocol, the probe must be able to attach to the switch without trying to insert by means of the MAC protocol.

  • Page 227: Switched Port Analyzer Screen

    0. To save the changes, select Return Note: The analyzer port and the monitored port must be on the same physical switch, not on different switches in the stack. Monitoring Port Traffic SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide Switched Port...
  • Page 228 SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide Monitoring Port Traffic...

  • Page 229: 10. Troubleshooting

    There are no serviceable parts inside the SmartStack STS16-20D/Sys16-20R. Do not remove the cover for any reason. If you think your switch requires service, please contact Cabletron Systems Technical Support. Please refer to Chapter 11, “Getting in Touch with Technical Support” for instructions.

  • Page 230: Choosing A Troubleshooting Procedure

    1. Verify that the boot code is at least release 2.3. If not, download the boot code using either TFTP or serial download as described in Chapter 6, “Switch Configuration”. SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide Go To: Procedure A...
  • Page 231 1. Check the port LEDs. — If the port INSRT LED is on, the problem is probably external to the switch. Go to Step 2. Troubleshooting SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide...
  • Page 232 4. Restart communications program on the failed connected device. — If the communication program appears to start without errors, observe the INSRT LED on the switch port. If it is on, the problem may have gone away. Check the Cfg Loss Threshold parameter in the Port Configuration screen (page 106) for possible causes of the failure.
  • Page 233 — If the problem persists, continue with step 7. 7. The problem does not appear to be in the switch and the cables and devices connected to the switch. The problem might be in the network applications or other software running on the devices.
  • Page 234 SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide Troubleshooting...

  • Page 235: 11. Getting In Touch With Technical Support

    A description of any action(s) already taken to resolve the problem (e.g., changing mode switches, rebooting the unit, etc.) • The serial and revision numbers of all involved Cabletron Systems products in the network • A description of your network environment (layout, cable type, etc.) •...

  • Page 236: Problem Report Form

    Fill in both sides of this Problem Report Form, print out the relevant system configuration files and fax or mail to Cabletron Systems Technical Support. You can also fill in and send a Problem Report Form from Cabletron Systems’s web site on the Internet.
  • Page 237 Problem Description Network Installation Sketch Getting in Touch with Technical Support SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide...
  • Page 238 SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide Getting in Touch with Technical Support...

  • Page 239: Appendix A. Abbreviations

    Dynamic Source Route Recovery DSRR Data Terminal Equipment Dedicated Token Ring Electronic Industry Association EPROM Erasable Programmable Read Only Memory Electrostatic Discharge Full-duplex Finite State Machine File Transfer Protocol Forwarding Half-duplex Abbreviations SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide...
  • Page 240 Network Node Manager Non Source-Routed Out-of-Band Management PROM Programmable Read Only Memory Quad Token-Ring Port (Internal MAC controller for four ports) Remote Monitoring RMON Recommended Standard Standby Monitor Present Systems Network Architecture SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide Abbreviations...
  • Page 241 Token Passing TrBRF Token Ring Bridge Relay Function TrCRF Token Ring Concentrator Relay Function Transmit Immediate Universal Administrated Address Upstream Neighbour Address Unshielded Twisted Pair VLAN Virtual LAN Wide Area Network Abbreviations SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide...
  • Page 242 SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide Abbreviations...

  • Page 243: Appendix B. Cable And Pin Information

    Appendix B. Cable and Pin Information This appendix provides information on cables that can be used with the SmartStack STS16-20D/STS16-20R. It also provides minimum pin-out information to be used to verify that the cables are correctly wired. Connecting to the Out-of-Band Management Port Table 16 lists the type of cables that are used when connecting to the OBM port (labeled MANAGEMENT) on the front panel of the switch.

  • Page 244: Table 17. Pin-Out Of The Management Port

    DTR (pin 20) and RTS (pin 4) must be on, or high, on your terminal or in your terminal emulation program. SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide Signal Name...

  • Page 245: Figure 28. Tia/Eia-232 Null-Modem Cable For 25-Pin Connector

    DTR (pin 4) and RTS (pin 7) must be on, or high, on your terminal or in your terminal emulation program. Figure 29. EIA 232 Null-Modem Cable for 9-pin Connector Cable and Pin Information SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide...

  • Page 246: Twisted-Pair Cable Pin Outs

    Diagrams of these cables follow. Straight-Through 100-Ohm/120-Ohm Cable The switch RJ-45 connector makes ground available on the shield and on pins 1, 2, 7, and 8. Shielded cables will provide continuity for ground to any shielded connector on the other end of the cable.

  • Page 247: Cabling Recommendations

    Type 9 150 Ohm Type 3 100 Ohm Category 3 100 and 120 Ohm Category 4 100 and 120 Ohm Category 5 100 and 120 Ohm Table 18. Copper Cable Types SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide...

  • Page 248: Cable Length And Lobe Wiring Rules For Dedicated-Media Lan Segments

    Table 19. Lobe Length for 150 Ohm Shielded Media Ring Speed 4 Mbps 16 Mbps 100 Mbps Table 20. Lobe Lengths for 100 Ohm Shielded or Unshielded Cable SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide Types Type 8 2 and 2A Not Supported Not Supported...

  • Page 249: Cable Length And Lobe Wiring Rules For Shared-Media Lan Segments

    234. Note: The acceptable cable lengths are defined by the hub or concentrator attached to the switch port, but in general the distances are half of that stated in the tables above for dedicated-media segments.
  • Page 250 SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide Cable and Pin Information...
  • Page 251 Current CrossLink Information screen Current Spanning Tree Information for a CRF Current Spanning Tree Information screen current spanning tree information screen Cut-Through diagnostic screen Diagnostic Test Results screen Display Summary screen SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide index-1 screen...
  • Page 252 2, 19 full-duplex General Statistics screen greeting screen 2, 19 half-duplex hardware revision level SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide high availability inspecting the package contents instalation instructions, summary installation installation preparation IP Configuration screen 32, 33, 34...
  • Page 253 Display Summary DSRR Acting as Backup Table DSRR Configuration DSRR Group Configuration DSRR Neighbour Table Screen DSRR Status Tables General Statistics guidelines for using IP Configuration Master Address Table SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide 94, 201 index-3...
  • Page 254 SNMP monitoring the network with SNMP configuration SNMP Configuration screen SNMP setup SNMP trap tables Source Route Bridging SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide Source Route Transparent SPAN spanning tree VLAN Spanning Tree for BRF screen screens...
  • Page 255 VLAN Port Configuration screen VLAN Route Descriptor Table screen VLAN statistics VLAN Statistics for BRF screen VLAN Statistics for CRF screen VT100 Management VT100/VT220 warm boot warning electricity Windows 95 SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide screen screen index-5...
  • Page 256 SmartStack STS16-20D/STS16-20R Token Ring Switches Installation and User Guide Index...
  • Page 258 * 710001812*...

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