3Com TR manual

® http://www.3com.com/ S UPER S TACK II ™ S WITCH 2000 TR U SER G UIDE V ersion 4.0 Part No. 99032 Published October 1997[...]

3Com Corporation ■ 5400 Bayfront Plaza ■ Santa Clara, California ■ 95052-8145 © 3Com Corporation, 1997. All rights reserved. No part of this documentation may be repr oduced in any form or by any means or used to make any derivative work (such as translation, transformation, or adaptation) without permission from 3Com Corporation. 3Com Corpo[...]

C ONTENTS A BOUT T HIS G UIDE Introduction 1 How to Use This Guide 1 Conventions 1 Related Publications 2 1 O VERVIEW About the SuperStack ™ II Switch 2000 TR 1-1 System Benefits 1-1 System Features 1-2 Summary of Features 1-3 T ypical Applications of T oken Ring Switching 1-4 Ring Segmentation 1-5 The Front Panel 1-6 RJ-45 Ports 1-7 Front Panel[...]

Configuration Guidelines 2-3 Power Supply and Fuse 2-3 Replacing the Fuse 2-3 Installing the Slide-in Modules 2-3 Installing the Switch 2000 TR 2-5 Rack Mounting 2-5 W all Mounting 2-5 Stack Mounting 2-5 Connecting Redundant Power System 2-6 Connecting to the Serial Port 2-6 Connecting a VT100 T erminal 2-6 Device Defaults 2-6 3 S ETTING U P FOR M[...]

4 C ONFIGURING WITH THE VT100 I NTERFACE Quick Setup 4-2 Bridge Configuration 4-3 Setting Source Routing T ransparent (VT100) 4-3 Setting Source Route Bridging 4-4 Setting T ransparent Bridging 4-4 Spanning T ree Fields 4-5 Spanning T ree Parameters 4-5 Port Configuration 4-6 Setting Up Ports 4-6 Setting the Port Admin. State 4-6 Setting VLAN ID [...]

5 C ONFIGURING WITH THE LCD C ONSOLE Unit Configuration 5-1 Bridge Configuration 5-2 Port Configuration 5-3 Setting Port ID 5-3 Viewing Link State 5-3 Setting Port State 5-4 Setting Speed 5-4 Setting Port Personality 5-5 I/O Module Configuration 5-5 6 M ONITORING THE S WITCH 2000 TR Locating Statistics 6-1 Unit Statistics 6-2 Port Statistics 6-[...]

F T ECHNICAL S UPPORT Online T echnical Services F-1 World Wide Web Site F-1 3Com Bulletin Board Service F-1 Access by Analog Modem F-1 Access by Digital Modem F-2 3ComFacts Automated Fax Service F-2 3ComForum on CompuServe Online Service F-3 Support from Y our Network Supplier F-3 Support from 3Com F-3 Returning Products for Repair F-4 3C OM C ORP[...]

[...]

A BOUT T HIS G UIDE Introduction This guide provides the information you need to install and configure the SuperStack II™ Switch 2000 TR (3C510600) into your T oken Ring network for maximum benefit. This guide is intended for use by network administra- tors responsible for installing and setting up network- ing equipment. It assumes a basic wor[...]

2 A BOUT T HIS G UIDE Related Publications Within the Switch 2000 TR document set: ■ Switch 2000 TR Quick Reference Guide. (Part Number #99033) ■ Switch 2000 TR User Guide. (Part Number #99032) ■ Switch 2000 TR Release Notes. (Part Number #99034) ■ SuperStack II Switch 2000 TR A TM OC-3 Module User Guide (Part Number #99041) ■ SuperStack [...]

1 O VERVIEW This chapter describes the major features, compo- nents, and concepts of the Switch 2000 TR, including: ■ About the SuperStack™ II Switch 2000 TR ■ Summary of Features ■ T ypical Applications of T oken Ring Switching ■ The Front Panel ■ The Rear Panel ■ Optional Slide-In Modules ■ T oken Ring Switching Concepts About the[...]

1-2 C HAPTER 1: O VERVIEW ■ Port population —High density port population relieves traf fic congestion and supports 4 and 16 Mbps data rates. In addition, the Switch 2000 TR has four custom-configurable ports designed for direct workstation or dedicated server connection. ■ Network management —Switch 2000 TR is sup- ported by the T ransce[...]

Summary of Features 1-3 ■ Roving Analysis —The Roving Analysis Port (RAP) feature allows you to configur e the SuperStack II Switch 2000 TR to capture and monitor traf fic on any T oken Ring LAN connected to the switch using any industry-standard LAN analyzer . This feature operates on Port 1 of the Switch 2000 TR and applies to all ports of [...]

1-4 C HAPTER 1: O VERVIEW ■ SNMP over IP ■ SNMP MIB II ■ Bridge MIB ■ SR Bridge MIB ■ BOOTP ■ Switch 2000 TR Private (3Com Private) ■ Part of SuperStack ™ II architectur e ■ Redundant Power System ■ Uninterruptable Power Supply ■ Integrated network management ■ One RS-232 DB-9 connector for local configura- tion T ypical Ap[...]

Ring Segmentation 1-5 Ring Segmentation High-speed switches offer a mor e efficient solution over 2-port PC bridges or routers. As illustrated below , segmentation with a T oken Ring switch brings immediate improvement over existing networks by re-distributing traf fic . Figure 1-2 Using Switch 2000 TR to Segment Network SuperStack II Switch 2000[...]

1-6 C HAPTER 1: O VERVIEW The Front Panel This section describes the front panel components and LEDs of the SuperStack II Switch 2000 TR. Figur e 1-3 shows the front panel. Figure 1-3 SuperStack II Switch 2000 TR Fr ont Panel RJ-45 Ports green =link OK yellow =MGMT partition flashing yellow =auto error off =inactive Link Status 6 7 1 12 SuperStack [...]

The Front Panel 1-7 RJ-45 Ports 12 RJ-45 ports support unshielded T wisted Pair (UTP) or Shielded T wisted Pair cabling (STP) at 4 Mbps or 16 Mbps wire speed. All 12 ports default to adapter mode for connection to a T oken Ring hub. Additionally , ports 1 thr ough 4 can be configured to hub mode to allow dir ect attachment of workstations or serve[...]

1-8 C HAPTER 1: O VERVIEW The Rear Panel This section describes the rear panel components of the Switch 2000 TR. Figur e 1-5 shows the rear panel. Figure 1-5 Switch 2000 TR Rear Panel * Refer to the appropriate module installation manual for mor e information. IEC Power Socket and Fuse Holder Redundant Power System Connector Serial Number Optional [...]

Optional Slide-In Modules 1-9 Power Socket The Switch 2000 TR automatically adjusts to the supply voltage. The fuse is suitable for both 110 AC and 220-240 AC operation. Refer to “Replacing the Fuse in Chapter 2 for information on replacing fuses. NOTE: The Switch 2000 TR has no ON/OFF switch. Serial Number Refer to this number if you need to rep[...]

1-10 C HAPTER 1: O VERVIEW to run each of these bandwidth-intensive applications across networks. The primary benefits of A TM include: ■ A TM is a cell-based communications technology that easily scales from T1 or A TM 25 to OC-3 (155 Mbps), OC-12 (622 Mbps), OC-48 (2.488 Gbps), and OC-192 (10 Gbps). ■ Additional services are easily added to [...]

Optional Slide-In Modules 1-11 Benefits of FDDI Fiber Distributed Data Interface (FDDI) is a 100-Mbps fiber optic local area network standar d supported by the ANSI committee. The primary benefits of FDDI include: ■ A 100 Mbps point of aggregation for multiple T oken Ring segments. ■ Supports Single Attached Station (SAS) or Dual Attached St[...]

1-12 C HAPTER 1: O VERVIEW ■ Manageability ■ Simple to configure and administer TR-in-FE allows both T oken Ring and Ether net to share the same Fast Ethernet physical wiring infra- structure and server base without impacting network performance. TR-in-FE accomplishes this by introduc- ing routing or traditional bridging via Sour ce-Route to T[...]

Migrating to High-speed T echnologies 1-13 Migrating to High-speed T echnologies Managers want to migrate to FDDI, A TM, or TR-in-FE easily . Using Switch 2000 TRs, critical resour ces attach directly to high-speed technologies while preserving the investment in T oken Ring hardwar e. They also merge easily with existing net- work management applic[...]

1-14 C HAPTER 1: O VERVIEW High-speed Cascade Connectors These connectors provide a high-speed cascade con- nection between Switch 2000 TRs in a stack. Y ou can connect multiple units to form a single switched domain. Y ou can connect up to six Switch 2000 TRs with these connectors. A stack of Switch 2000 TRs act as a single multiport switch. The s[...]

T oken Ring Switching Concepts 1-15 the destination ring station. A route is simply the path a packet takes through a sour ce route bridged net- work from the sour ce ring station to the destination ring station. In a multiple ring environments, nodes on dif ferent rings need additional bridging information before they can communicate with each oth[...]

1-16 C HAPTER 1: O VERVIEW table, a switch knows which port must be used to reach each known MAC addr ess. Every time a switch receives a packet, it examines its bridging table to determine if the source MAC address is contained in its bridging table. If it is not, it creates a new entry . The switch then searches its bridging table for the address[...]

T oken Ring Switching Concepts 1-17 can use any path in the network. ARE packets are flooded through all bridges onto all rings. This cr eates multiple copies if redundant paths exist in the net- work. When multiple requests ar e received at the destina- tion; each one causes a response. Implementing Spanning T ree ensures that the number of br oa[...]

1-18 C HAPTER 1: O VERVIEW Cut-thru mode. The default mode for the Switch 2000 TR is Dynamic Cut-thru. VLANs A VLAN is defined as a group of location- and topol- ogy- independent devices that communicate as though they were on the same physical LAN. This means that they are not r estricted by the hardware that physically connects them, and segment[...]

2 G ETTING S TARTED This chapter describes the installation and setup pro- cedures for the Switch 2000 TR: ■ Important Safety Information ■ Positioning the Switch 2000 TR ■ Installing the Slide-in Modules ■ Installing the Switch 2000 TR ■ Connecting Redundant Power System ■ Connecting to the Serial Port ■ Device Defaults Important Saf[...]

2-2 C HAPTER 2: G ETTING S TARTED ■ If the power supply plug is unsuitable and you must replace it, r efer to the following specifica- tions: ■ Brown wir e to the Live (Line) plug terminal. The terminal may be marked with the letter L or col- ored r ed. ■ Blue wire to the Neutral plug terminal. The ter - minal may be marked with the letter N[...]

Installing the Slide-in Modules 2-3 Configuration Guidelines The cable topology rules for T oken Ring are shown below: Power Supply and Fuse The Switch 2000 TR automatically adjusts to the sup- plied voltage. The fuse is suitable for either 90-110V A.C. or 220-240V A.C. A spare fuse is pr ovided in the fuse drawer . Replacing the Fuse Refer to Fig[...]

2-4 C HAPTER 2: G ETTING S TARTED CAUTION: Always follow Electrostatic Discharge (ESD) procedures when installing an I/O Module. 1 If the Switch is connected to the network, turn off the power and disconnect the switch from the main power supply and the network. 2 Place the Switch on a flat, clean, hard, work surface. 3 Locate and remove the blank[...]

Installing the Switch 2000 TR 2-5 Installing the Switch 2000 TR Rack Mounting The Switch 2000 TR fits a standard 19-inch data com- munications rack typically found in wiring closets. 1 Unpack the Switch 2000 TR and place it on a hard, flat surface. 2 Position one of the enclosed mounting brackets over the mounting holes and attach. See Figure 2-3[...]

2-6 C HAPTER 2: G ETTING S TARTED Connecting Redundant Power System T o install an RPS, proceed as follows: 1 Power down by disconnecting the AC power cord on the Switch 2000 TR. 2 Connect an RPS cable assembly to the RPS connector on the back panel of the Switch 2000 TR. 3 Connect the other end of the RPS cable assembly to the RPS connector on the[...]

Device Defaults 2-7 T able 2-3 Stack Defaults T able 2-4 Workgroup Defaults T able 2-5 Bridge Defaults Speed 16 Mbps Forwarding Mode Cut-through Dynamic Cut-thru Rising 20% Falling 10% Broadcast Storm Rising Threshold 60% Falling Threshold 50% Rising Action none Falling Action none Port Bridge Defaults Priority 100 Path Cost 62 Attached LAN ID FFFF[...]

2-8 C HAPTER 2: G ETTING S TARTED[...]

3 S ETTING U P FOR M ANAGEMENT This chapter describes background information for configuration and the procedur es for initial setup of the SuperStack II Switch 2000 TR, including: ■ Switch 2000 TR Management Options ■ Configuring Switch 2000 TR in Stack ■ Managing over the Network ■ Management Prer equisites ■ Switch 2000 TR Management[...]

3-2 C HAPTER 3: S ETTING U P FOR M ANAGEMENT T able 3-1 Switch 2000 TR Management Options VT100 Management Interface The menu-driven interface for the Switch 2000 TR is known as the VT100 interface or Local Management interface. Using a simple series of menus, the VT100 interface provides access to switch functions, includ- ing port, stack, unit, b[...]

Configuring Switch 2000 TR in Stack 3-3 Configuring Switch 2000 TR in Stack Head Unit One of the unique characteristics of the Switch 2000 TR is its ability to be part of a stack. When installed as members of a stack, up to 6 Switch 2000 TRs form the equivalent of a switching chassis, managed using the same IP address. All traf fic, management, [...]

3-4 C HAPTER 3: S ETTING U P FOR M ANAGEMENT Managing over the Network Any network manager application running Simple Network Management Protocol (SNMP) can manage the Switch 2000 TR, provided the Management Infor - mation Base (MIB) is installed correctly on the man- agement station. SNMP files for all 3Com products are available on the “3Com B[...]

Management Prerequisites 3-5 1-800-444-4345, 1-619-455-4600, 1-703-742-4777 ■ In Europe RIPE NCC Kruislaan 409 NL-1098 SJ Amsterdam The Netherlands T elephone number: +31 20 592 5065 ■ In Asia Pacific Asia P acific Network Information C enter (APNIC-DOM) c/o Computer C enter , University of T ok yo 2-11-16 Y ayoi Bunkyo-ku, T okyo 113 Japan T[...]

3-6 C HAPTER 3: S ETTING U P FOR M ANAGEMENT Source Routing Pr erequisites If you plan to operate the Switch 2000 TR in a source routing envir onment, you need to assign a segment ID. Follow the instructions below , from the Port Setup screen: 1 Select Bridge from the bottom of the Port Setup screen. The Port Bridge Setup screen appears. Figure 3-3[...]

Switch 2000 TR Management Consoles 3-7 [Down Arrow] or [Return] to move to the next field. Refer to “Switch 2000 TR VT100 Console Interface Menu Map”. Entry Field Example display: [text] T ext enclosed in square brackets on the screen indi- cates a text entry field. This field may be text, numeric data, or hexadecimal data. Password fields [...]

3-8 C HAPTER 3: S ETTING U P FOR M ANAGEMENT ■ [Ctrl] + [N] —Moves to the next screen after imple- menting current scr een settings. ■ [Ctrl] + [K] —Displays list of key strokes. Correcting T ext Entries Use [Delete] on a VT100 terminal or [Backspace] on a PC. This key moves the cursor one space to the left and deletes a character . T o del[...]

VT100 Console Menu Map 3-9 VT100 Console Menu Map Figure 3-4 displays the menu structur e for the Switch 2000 TR VT100 console interface. Figure 3-4 Switch 2000 TR VT100 Console Interface Menu Map I/O Module Switch 2000 Main Banner Switch 2000 Logon Switch 2000 Main Menu Stack Unit Port VLAN Bridge Initialize Reset Remote Poll Logoff Software Upgra[...]

3-10 C HAPTER 3: S ETTING U P FOR M ANAGEMENT Setting Up the VT100 Console This section provides instructions for setting up the VT100 console for local or remote management. 1 Connect a VT100-compatible terminal to the serial port of the Switch 2000 TR. Configure the terminal to the following settings: ■ 9600 baud ■ 8 data bits ■ 1 stop bit[...]

Setting Up the VT100 Console 3-11 Figure 3-8 Switch 2000 TR Management Setup Scr een 7 Fill in the following fields: ■ Device IP Address ■ Device Subnet Mask (if applicable) ■ Default Router (if applicable) 8 Select OK when you have finished Management Setup. Y ou will be asked to confirm your settings. 9 Press [Enter]. Settings ar e con?[...]

3-12 C HAPTER 3: S ETTING U P FOR M ANAGEMENT Work Gr oup ID The workgroup number for purposes of manage- ment. Management is only part of a single work- group and should be viewed as a sub-net. If you move your management setup to a new or differ ent subnet, you will need to change the workgroup ID. Device IP Address Y ou must assign a unique addr[...]

The LCD Console 3-13 The LCD Console This section describes the LCD Console. The LCD Console allows you to enter specific configuration parameters and obtain status data on the Switch 2000 TR without using a management workstation console or application. Figure 3-9 Switch 2000 TR LCD Console Use the left, right, up, down, and enter buttons to vie[...]

3-14 C HAPTER 3: S ETTING U P FOR M ANAGEMENT LCD Console Menu Map Figure 3-10 displays the menu structur e for the LCD console interface on the front panel of the Switch 2000 TR. Figure 3-10 Switch 2000 TR LCD Console Menu Map Default Router Switch 2000 TR Unit Id. 1 > Unit Switch 2000 TR Unit # I P Mgmt ENTER I P Mgmt IP Address Subnet Mask De[...]

Setting Up the LCD Console 3-15 Setting Up the LCD Console This section provides instructions for setting up the LCD console for local or remote management. 1 Press the [Enter] button on the fr ont panel LCD to enter the main menu. Figure 3-11 Fr ont Panel LCD Main Banner 2 Press [Down Arr ow] until the Switch 2000 TR >Man- agement screen appear[...]

3-16 C HAPTER 3: S ETTING U P FOR M ANAGEMENT 10 Press [Enter]. A blank decimal notation appears in the Default Router field. 11 Enter the Default Router address as follows: ■ Select the value of the digit by moving the [Up or Down Arrow] until the desir ed value appears. Choose from 0 thr ough 9 and “.”. ■ Select the desired digit by movi[...]

Setting Up BOOTP 3-17 Figure 3-12 Stack Setup Scr een (BootP Setup) 5 (Optional) Enter a sysname for the stack. 6 T oggle the [Space Bar] to Enable or Disable BootP .[...]

3-18 C HAPTER 3: S ETTING U P FOR M ANAGEMENT Auto Logout The Switch 2000 TR has a built-in auto logout feature which disables the VT100 interface after approxi- mately three minutes without keyboar d activity . This feature pr ovides a level of security for network man- agers. T o view the Auto Logout screen proceed as follows: 1 After approximate[...]

Upgrading Software 3-19 Upgrading Software The Software Upgrade featur e allows you to down- load new software images using TFTP running over UDP/IP . When 3Com Corporation issues a new version of the software image for the Switch 2000 TR, you can obtain it from the 3Com Bulletin Boar d Service. See “3Com Bulletin Board Service in Appendix F. Y o[...]

3-20 C HAPTER 3: S ETTING U P FOR M ANAGEMENT screen locks. When the download completes, the Switch 2000 TR automatically resets and r e-boots with the new software image. 7 In the File Name field, enter “UNIT # n”. Where “n” specifies the unit ID of the unit fr om which the download occurs. In most cases this unit will be the head unit: [...]

Resetting the Switch 2000 TR 3-21 Resetting the Switch 2000 TR This section provides instructions for r esetting the Switch 2000 TR. Because some configurable parameters requir e that you reset the Switch 2000 TR after making changes, it is important to understand the reset pr ocedure before proceeding. Y ou have four different ways to r eset the [...]

3-22 C HAPTER 3: S ETTING U P FOR M ANAGEMENT Reset Button The Switch 2000 TR has a reset button on the r ear panel of the unit. See Figure 3-16. T o reset the Switch 2000 TR using the Reset button, proceed as follows: 1 Locate the Reset button on the rear panel of the Switch 2000 TR. 2 Press the switch once. The Switch 2000 TR resets. NOTE: The re[...]

4 C ONFIGURING WITH THE VT100 I NTERFACE The VT100 console is accessed via the serial console and provides access to all configuration, manage- ment, and monitoring facilities. ■ Quick Setup ■ Bridge Configuration ■ Port Configuration ■ Port Bridge Configuration ■ I/O Module Configuration ■ Stack Configuration ■ VLAN Configurat[...]

4-2 C HAPTER 4: C ONFIGURING WITH THE VT100 I NTERFACE Quick Setup The Quick Setup option provides dir ect access to the Bridge Setup and TR Port Setup screens. 1 Log on to the Switch 2000 TR. The Main Menu appears. See Figure 4-2. Figure 4-2 Main Menu with Quick Setup Highlighted 2 From the Main Menu, select Quick Setup. The Quick Config screen a[...]

Bridge Configuration 4-3 Bridge Configuration The bridge configuration section includes information on the following: ■ Source Routing T ransparent (SRT) ■ Source Route (SR) ■ T ransparent (TP) ■ Spanning T ree Fields Setting Source Routing T ransparent (VT100) NOTE: This bridge setting requires that you reset the switch. Refer to “Res[...]

4-4 C HAPTER 4: C ONFIGURING WITH THE VT100 I NTERFACE 13 At the bottom of the TR Port Setup screen, select BRIDGE. The Port Bridge Setup screen appears. See Figure 4-6. Figure 4-6 Port Bridge Setup Scr een 14 In the Attached LAN ID field, enter the LAN ID in hex. 15 From the STE Mode field, select *Auto-Span*. 16 Select OK. Repeat for all ports [...]

Bridge Configuration 4-5 5 In the Spanning T ree field, select *802.1d* to enable 802.1d compliant Spanning T ree for the Switch 2000 TR. The BPDU value is automatically assigned: 80-01-43-00-00-00. 6 Select OK. Repeat for all ports as desired. Spanning T ree Fields Spanning T ree is an algorithm designed to eliminate loops in networks. The algor[...]

4-6 C HAPTER 4: C ONFIGURING WITH THE VT100 I NTERFACE Port Configuration The Port configuration section includes directions for configuring ports of the Switch 2000 TR, including: ■ Admin State ■ VLAN ID ■ Port Personality ■ Internal Priority ■ Congestion Control ■ T oken Priority ■ Speed ■ Forwarding Mode ■ Cut-Thru Threshold[...]

Port Configuration 4-7 identified by their VLAN ID. All ports are configur ed by default to VLAN 1. 1 Set this field by entering the desired VLAN number for the current port. 2 Press [Return]. Setting Port Personality Ports 1 through 4 on the Switch 2000 TR can be set to *Adapter* or *Hub*. In “adapter” mode, the port can connect to a token[...]

4-8 C HAPTER 4: C ONFIGURING WITH THE VT100 I NTERFACE ring ahead in the queue. The frame that has been buffer ed for the busy or down queue is discarded so that deliverable packets can proceed. ■ Disabled — In the disabled mode, neither Flow Control or Non-blocking ar e in use. 1 Set this field to one of the aforementioned fields by toggling[...]

Port Configuration 4-9 T o set a Locally Administered Address, take these steps in the Locally Admin. field: 1 Enter address in hexadecimal. This should be between 400000 000000 and 7FFFFF FFFFFF . 2 Press [OK]. 3 Reset the Switch 2000 TR. NOTE: The Locally Administered address will not be valid until the Switch 2000 TR is reset. Refer to “Rese[...]

4-10 C HAPTER 4: C ONFIGURING WITH THE VT100 I NTERFACE Port Bridge Configuration Set the Spanning T ree and Source Routing fields for the Port using the Bridge selection, located at the bottom of the Port Setup screen. Choices ar e: ■ Priority ■ Path Cost ■ Attached LAN ID ■ Max. Route-Desc ■ STE Mode From the Port Setup scr een, perfo[...]

I/O Module Configuration 4-11 ■ Forced — Indicates that the port will always accept and propagate STE packets. ■ Auto-Span —Indicates that the port will accept and propagate STE packets when its Spanning T ree state is forwarding. NOTE: Spanning T ree does not have to be enabled for this to function correctly . 4 Select OK to save changes.[...]

4-12 C HAPTER 4: C ONFIGURING WITH THE VT100 I NTERFACE Setting sysName The sysName field allows you to assign an identifying name to the stack. This name is displayed on the top level form. 1 Enter any combination of up to 30 alpha or numeric characters as an identifier . Spaces are allowed. 2 Select OK. BOOTP Client If BOOTP Client is enabled a[...]

VLAN Configuration 4-13 ■ AT M —The port is an A TM OC-3c Module port. For more information, see the SuperStack II Switch A TM OC-3c Module User Guide. ■ VLAN Membership —This field displays the ID of the VLAN(s) to which the port belongs. ■ Port ID —This field displays the ID of the port currently selected in the listbox. ■ VLAN I[...]

4-14 C HAPTER 4: C ONFIGURING WITH THE VT100 I NTERFACE Unit Configuration Unit configuration allows you to view these unit parameters: ■ Unit ID ■ Unit Name ■ Port Capacity ■ Option Slot ■ Power Supply For more information on the unit, r efer to “Unit Sta- tistics in Chapter 6. Setting Up the Unit 1 Log on to the Switch 2000 TR. 2 Se[...]

Administrative Configuration 4-15 Power On Self T est Use this field to specify the type of self-test to run at start-up: ■ Normal —A 10 second test that verifies the Switch 2000 TR’ s basic functions. ■ Extended —A more compr ehensive test that lasts up to 300 seconds. Roving Analysis Use the following fields to set up the Roving Ana[...]

4-16 C HAPTER 4: C ONFIGURING WITH THE VT100 I NTERFACE ■ EDIT USER — Allows you to change your password and community . Y ou cannot change other pass- words or community strings. 2 Select the menu item you want and see the appropri- ate description and instructions on the following pages. Setting Local Security The TR Local Security screen dis[...]

Administrative Configuration 4-17 3 Select OK when you are finished filling in the fields. Creating New Users Follow these steps to create new users and assign access levels to the Switch 2000 TR. From the TR USER ACCESS LEVELS scr een: 1 Select CREA TE USER. The TR Create User screen appears. See Figure 4-14. Figure 4-14 TR Cr eate User Screen[...]

4-18 C HAPTER 4: C ONFIGURING WITH THE VT100 I NTERFACE 2 Scroll using the [Down Arr ow] until you highlight the user you want to delete. Y ou cannot delete default users or the current user (that is, yourself). Figure 4-15 Delete User Scr een 3 Press [Return] to delete user . An asterisk appears next to the name you have chosen t o delete. 4 Selec[...]

About the Switch Database (SDB) 4-19 About the Switch Database (SDB) The Switch 2000 TR supports a database of transpar - ent addresses r eceived on its local ports. Using this information, the Switch 2000 TR determines whether a transparent frame should be forwar ded or filtered. The database holds a maximum of 2000 entries, each of which include[...]

4-20 C HAPTER 4: C ONFIGURING WITH THE VT100 I NTERFACE Switch Database Configuration The Switch 2000 TR Unit Database View screen allows you to set up, maintain, and view the data- base. The Switching Database is distributed across the units in a stack. Y ou need to choose a unit before you can observe the addresses learned by that unit. Choices:[...]

SNMP T rap Configuration 4-21 ■ REFRESH —Command allows you to refr esh the database and display the latest address entries. ■ INSERT —Command allows you to add an entry to the database. ■ DELETE —Command allows you to remove an entry from the database. Adding Entries to the Database From the Unit Database View scr een, take these step[...]

4-22 C HAPTER 4: C ONFIGURING WITH THE VT100 I NTERFACE Figure 4-19 TR T rap Setup Screen The TR T rap Setup screen has these fields: ■ IP Address —Enter the network addr ess of the remote network management station to which traps are to be sent. ■ Community String —Enter a 32-character text string for authenticating SNMP communication bet[...]

Serial Port Configuration 4-23 minal’ s serial port parameters match those on the Switch 2000 TR. This allows you to continue to access the management facility from the equipment after you change the serial port parameters. The Serial Port Setup screen displays the following: Connection T ype Local/remote Select Remote if you wish to manage the [...]

4-24 C HAPTER 4: C ONFIGURING WITH THE VT100 I NTERFACE Initializing the Switch 2000 TR The Switch 2000 TR VT100 interface allows you to initialize the nonvolatile memory on the unit and return to the factory defaults. Be aware that all con- figuration parameters, database entries, and setting will be erased and returned to the original factory-se[...]

5 C ONFIGURING WITH THE LCD C ONSOLE This chapter describes the Switch 2000 TR LCD Con- sole management facilities and provides pr ocedures for configuring and managing the device. This con- sole is accessed from the fr ont panel and provides access to most configuration, management, and monitoring facilities. This chapter assumes you have prepar[...]

5-2 C HAPTER 5: C ONFIGURING WITH THE LCD C ONSOLE Bridge Configuration Bridge settings can be made using the LCD console. If you have made settings using the VT100 interface, those settings will be reflected in the LCD console. Refer to Chapter 3 for more information on navigat- ing the LCD console. Although many of the steps in the following pr[...]

Port Configuration 5-3 Port Configuration Port parameters can also be set from the LCD console on the Switch 2000 TR front panel. If you have made settings using the VT100 interface, those settings will be reflected in the LCD console. Refer to Chapter 3 for more information on navigating the LCD console and the LCD console map. The screens ar e[...]

5-4 C HAPTER 5: C ONFIGURING WITH THE LCD C ONSOLE 4 Press [Down Arr ow] until Port # >Link State appears. 5 Press [Enter]. Link State # >[state] appears. The Link State identifies the current state of the port you are viewing. ■ Disabled ■ Blocking ■ Listening ■ Learning ■ Forwarding ■ Broken This read-only field cannot be chan[...]

I/O Module Configuration 5-5 Setting Port Personality Ports 1 through 4 can each be configur ed as either “Hub Port” or “Adapter Port.” The Adapter mode is the default for these ports. Ports 5 through 12 can only be set as “Adapter Port.” Refer to “SuperStack II Switch 2000 TR Front Panel RJ-45 Ports in Chapter 1 for more informatio[...]

5-6 C HAPTER 5: C ONFIGURING WITH THE LCD C ONSOLE Figure 5-2 I/O Module LCD Menus 1 T o view the next level, press [Enter]. 2 Press the [Down Arr ow] until Switch 2000 TR > Module appears. 3 Press [Enter]. ST A TUS > Module T ype appears. 4 Press [Down Arr ow] to scroll down through the I/O Module menus. 5 Press [Enter] at any one of the fol[...]

6 M ONITORING THE S WITCH 2000 TR This chapter provides information on viewing the cur - rent operating status of the Switch 2000 TR, display- ing errors using the fault log, and carrying out a remote poll (PING). Regularly viewing statistics allows you to be sure that your network and Switch 2000 TR devices are operat- ing properly . By viewing th[...]

6-2 C HAPTER 6: M ONITORING THE S WITCH 2000 TR Unit Statistics NOTE: The Unit Statistics screen provides an easy method for viewing per -port performance. It displays port traffic activity for each active port. V alues are refreshed approximately every two seconds. The counters are reset after the values reach approxi- mately 4.2 billion. See Fig[...]

Port Statistics 6-3 Port Statistics The TR Port Statistics screen pr ovides an easy method for viewing individual port performance. See Figure 6-3. TR Port Statistics pr ovide more detailed information on individual ports. This screen also pr o- vides access to the T raffic Statistics screen. T o view the TR Port Statistics screen, take these step[...]

6-4 C HAPTER 6: M ONITORING THE S WITCH 2000 TR Current Utilization — The per centage of bandwidth usage for the port you are curr ently viewing. This value indicates the general traffic level on the individ- ual port. Ideally , this figure should be below 60%, which indicates that the port is responsible for a r ea- sonable amount of traffic [...]

Port Statistics 6-5 directed to a br oadcast address or frames received with errors. Broadcasts Received — The number of frames received that have a br oadcast destination address. This number does not include frames with errors. Octets Received — The number of octets received by the port, including the MAC header and CRC. Octet counters are ac[...]

6-6 C HAPTER 6: M ONITORING THE S WITCH 2000 TR Stack Status The Stack Status screen pr ovides easy access to the vital statistics associated with a stack. Units and their status, the software version curr ently running on each unit and the MAC address of each unit displays. T o view the Stack Status screen, perform these steps using the Switch 200[...]

Status 6-7 Status The Status screen pr ovides read-only information about the Switch 2000 TR. Information provided on this screen is especially useful for tr oubleshooting and monitoring system history . Y ou can view some Status information using the LCD console on the front panel of the Switch 2000 TR. Refer to “LCD Status” for more informati[...]

6-8 C HAPTER 6: M ONITORING THE S WITCH 2000 TR Fault Log The Fault Log displays read-only information about the Switch 2000 TR. The Fault Log updates whenever an abnormal condition occurs. This information is for internal 3Com use only . Y our supplier may ask you to quote the Area and Fault Number if you r eport a problem. T o view the Fault Log,[...]

Remote Polling (PING) 6-9 Remote Polling (PING) The Remote Poll screen allows you to send a single frame to a remote device. Use this featur e to verify if a remote device is active and r esponding. It can help locate network problems and is also r eferred to as PING. T o use the Remote Poll feature, take these steps from the Switch 2000 TR Main Me[...]

6-10 C HAPTER 6: M ONITORING THE S WITCH 2000 TR LCD Status The LCD console located on the front panel of the Switch 2000 TR provides useful har dware, software, and system version information. Refer to Chapter 5 for more information. Figure 6-9 LCD Console Status Chart T o view the LCD status, take these steps from the Switch 2000 TR>Unit Id ba[...]

7 V IRTUAL LAN S This chapter provides information on Virtual Local Area Networks (VLANs). Definitions, benefits, sample configurations and concepts of VLANs are described here, including: ■ What are VLANs? ■ Benefits of VLANs ■ VLANs and the Switch 2000 TR Setting up Virtual Local Area Networks (VLANs) on the Switch 2000 TR provides you [...]

7-2 C HAPTER 7: V IRTUAL LAN S Benefits of VLANs Implementing VLANs on your network has three main advantages: ■ It eases the change and movement of devices on networks. ■ It helps to control br oadcast traffic. ■ It provides extra security . How VLANs Ease Change and Movement With traditional IP networks, network administrators spend much [...]

VLANs and the Switch 2000 TR 7-3 Figure 7-1 The concept of VLANs VLANs and the Switch 2000 TR The Switch 2000 TR supports VLANs which consist of a set of switch ports. Each switch port can only belong to one VLAN at a time, regar dless of the device to which it is attached. Each Switch 2000 TR can support up to 16 VLANs. However , you can have more[...]

7-4 C HAPTER 7: V IRTUAL LAN S Connecting Common VLANs Between Switch Units In the Switch 2000 TR, you typically connect VLANs to other Switch 2000 TRs and units using backbone ports. This allows the Switch to forward all frames with an unknown address to the r est of the network, and it also stops the Switch Database from becoming full if there ar[...]

VLANs and the Switch 2000 TR 7-5 Figure 7-2 VLAN configuration with a single Switch 2000 TR unit VLAN 1 VLAN 2 Switch 2000 TR Connection for VLAN 1 Connection for VLAN 2 Router[...]

7-6 C HAPTER 7: V IRTUAL LAN S[...]

A S OFTWARE U PGRADE U TILITY The SuperStack II Switch 2000 TR has a back-up Software Upgrade Utility that allows you to: ■ Download a new software image if the opera- tional image has been damaged. This feature should be used for emergency situations only! ■ Download a new software image for new r evi- sions. The Software Upgrade Utility is al[...]

A-2 A PPENDIX A: S OFTWARE U PGRADE U TILITY L Lists the current settings of the Switch 2000 TR and pro- vides a status report for the previous download attempts. Use this command to check that you hav e entered all the parameters necessary for a successful download. F igure A-1 represents the scr een after using the com- mand. M (subnet mask) Ente[...]

Using the Commands A-3 Using the Commands The following sections tell you how to use the Soft- ware Upgrade Utility scr een. If you enter the Software Upgrade Utility acciden- tally , enter the command G to quit. If you give no keyboard input for 30 seconds, the utility will time out. Resetting to Factory Defaults Enter command R and then command G[...]

A-4 A PPENDIX A: S OFTWARE U PGRADE U TILITY Status Messages The Software Upgrade utility r eports the status of the last download attempt. It reports err or messages if the download was unsuccessful. The status messages are described below: Messages 1 through 7 are standard TFTP errors as detailed in IFC 783. These errors generally indicate that y[...]

B S CREEN A CCESS R IGHTS The table in this appendix specifies which level of users can view and usually edit (write). Access rights allow users to view and/or edit the Switch 2000 TR VT100 management screens. All access rights are r ead-and-write except where noted as read-only . Access Rights T able Screen Accessible to . . . Logon Monitor Manag[...]

B-2 A PPENDIX B: S CREEN A CCESS R IGHTS Status Monitor Manager Security Fault Log Monitor Manager Security Setup Monitor read-only Manager Security Serial Port Setup Monitor read-only Manager Security T rap Setup Monitor read-only Manager Security Software Upgrade Security Initialize Security Reset Manager Security Screen Accessible to . . .[...]

C S ERIAL P ORT C ABLE P IN - OUTS Null Modem Cable 9 pin to RS-232 25 pin. Pin numbers that are under - lined are dif ferent. All other pin designations are straight through. Cabling for Module Options If you have an A TM, FDDI, or TR-in-FE module, see the following manuals for special cabling specifica- tions: ■ SuperStack II Switch 2000 TR A [...]

C-2 A PPENDIX C: S ERIAL P ORT C ABLE P IN - OUTS[...]

D T ROUBLESHOOTING T roubleshooting Procedur es This appendix lists potential problems you might see when managing the Switch 2000 TR and includes suggested actions to take. If you experience a problem not listed her e or that you cannot solve, please contact your local technical support repr esen- tative. The initial Main Banner screen does not di[...]

D-2 A PPENDIX D: T ROUBLESHOOTING The SNMP manager or T elnet workstation can no longer access the device: Check that Remote T elnet access or Commu- nity-SNMP access is enabled. Check that the port through which you ar e access- ing the device has not been disabled, see "Port Configuration" in Chapter 4. If it is enabled, check the conn[...]

E S WITCH 2000 TR T ECHNICAL S PECIFICATIONS Physical Dimensions Height: 2.75 inches (7.0 cm) x Width: 17.25 inches (44cm) x Depth 12 inches (30.5 cm) Weight: 4.4kg (9.7lbs) Environmental Requir ements Operating Temperature 32˚ to 120˚F (0˚ to 50˚ C) Operating Humidity 10 to 95% r elative humidity , non-condensing Safety Agency Certifications U[...]

E-2 A PPENDIX E: S WITCH 2000 TR T ECHNICAL S PECIFICATIONS Specifications for Module Options If you have an A TM, FDDI, or TR-in-FE module, see the following manuals for technical specifications: ■ SuperStack II Switch 2000 TR A TM OC-3 Module User Guide (Part Number #99041) ■ SuperStack II Switch 2000 TR FDDI Module User Guide (Part Number [...]

F T ECHNICAL S UPPORT 3Com provides easy access to technical support infor - mation through a variety of services. This appendix describes these services. Information contained in this appendix is correct at time of publication. For the very latest, we recom- mend that you access 3Com Corporation’ s World Wide Web site. Online T echnical Services[...]

F-2 A PPENDIX F: T ECHNICAL S UPPORT Access by Digital Modem ISDN users can dial in to 3ComBBS using a digital modem for fast access up to 56 Kbps. T o access 3ComBBS using ISDN, use one of the following numbers: 408 654 2706 or 408 654 2703 3ComFacts Automated Fax Service 3Com Corporation’ s interactive fax service, 3ComFacts, provides data shee[...]

Support from Y our Network Supplier F-3 3ComForum on CompuServe Online Service 3ComForum contains patches, software, drivers, and technical articles about all 3Com products, as well as a messaging section for peer support. T o use 3ComForum, you need a CompuServe account. T o use 3ComForum: 1 Log on to your CompuServe account. 2 T ype go threecom 3[...]

F-4 A PPENDIX F: T ECHNICAL S UPPORT Returning Products for Repair Before you send a pr oduct directly to 3Com for repair , you must first obtain a Return Materials Authorization (RMA) number . Products sent to 3Com without RMA numbers will be returned to the sender unopened, at the sender’ s expense. T o obtain an RMA number , call or fax: 08/0[...]

1 INDEX Numbers 3Com Bulletin Board Service (3ComBBS) F-1 3Com sales offices F-3 3Com URL F-1 3ComFacts F-2 3ComForum F-3 A Administrative Settings CREA TE NEW USER 4-15 DELETE USERS 4-15 EDIT USER 4-16 LOCAL SECURITY 4-15 A TM networks extending VLANs into 7-4 Auto 3-18 Auto Logout, description of 3-18 B backbone port 4-12, 7-4 specifying 4-13 Bl[...]

2 L LCD Console 3-15 LCD Display Buttons description of 1-7 LCD Statistics 6-10 Learning, description of 6-3 Link State viewing LCD Console 5-3 Listening, definition of 6-3 Local Security Community SNMP 4-16 Manager 4-16 Monitor 4-16 Remote T elnet 4-16 Secure Monitor 4-16 Security 4-16 Serial Port 4-16 Setting 4-16 Specialist 4-16 Locally Admin A[...]

3 Reset Button Reset 3-22 VT100 Reset 3-21 returning products for r epair F-4 RJ-45 Ports, description of 1-6 Roving Analysis, description of 1-3 S Safety Information 2-1 Screen Access Rights B-1 screens VLAN Setup 4-12 Serial Port connecting to 2-6 setting Auto Config 4-23 Char Size 4-23 Connection T ype 4-23 DCD Control 4-23 DSR Control 4-23 Flo[...]

4 V Virtual LAN T runks. See VL T s VLAN Setup screen 4-12 VLAN Support, description of 1-2 VLANs assigning ports 4-13 Default 4-13, 7-3 extending into an A TM network 7-4 using Non-routable pr otocols 7-4 using unique MAC addresses 7-4 VL T s 7-4 VL T s 7-4 VT100 Console Button 3-7 Choice Field 3-6 Correcting T ext Entries 3-8 Entry Field 3-7 Keyb[...]

3Com Corporation L IMITED W ARRANTY The duration of the warranty for the SuperStack II Switch 2000 TR, is n years. H ARDWARE 3Com warrants its hardware products to be free from defects in workmanship and materials, under normal use and service, for the following lengths of time from the date of purchase from 3Com or its Authorized Reseller: If a pr[...]

warranty gives you specific legal rights which may vary depending on local law. 3Com Corporation , 5400 Bayfront Plaza, Santa Clara, CA 95052-8145 (408) 764-5000 8/04/97[...]