Cabletron Systems 100 - Manual

Notice iv DECLARATION OF CONFORMITY Application of Council Directive(s): 89/336/EEC73/23/EEC Manufacturer’s Name: Cabletron Systems, Inc. Manufacturer’s Address: 35 Industrial WayPO Box 5005Rochester, NH 03867 European Representative Name: Mr. J. Solari European Representative Address: Cabletron Sys...

v CONTENTS CHAPTER 1 INTRODUCTION 1.1 ABOUT THIS MANUAL ........................................................................ 1-11.2 GETTING HELP ....................................................................................... 1-21.3 DOCUMENT CONVENTIONS ......................................

vi Contents 3.10 DISPLAYING MIRRORING STATUS ..............................................3-143.11 DEFINING AND DELETING WORKGROUPS ..............................3-163.12 ASSIGNING A COMMUNITY NAME .............................................3-183.13 CONFIGURING BROADCAST/MULTICAST STORM PROTECTIO...

Contents vii 5.2 RESPONSES TO FAILURES AT POWER-UP...................................... 5-35.3 STATUS AND ACTIVITY INDICATORS ............................................ 5-35.4 TROUBLESHOOTING ............................................................................ 5-65.5 ELS100-16TX DOES NOT ...

1-1 CHAPTER 1 INTRODUCTION 1.1 ABOUT THIS MANUAL This manual is for system administrators responsible for configuring, monitoring, and maintaining the SmartSTACK 100 ELS100-16TX. You should have a familiarity with networking concepts and principles. In addition, a basic understanding of SNMP is help...

1-2 Introduction • Chapter 5, ELS100-16TX Diagnostics and Troubleshooting , describes the SmartSTACK 100 ELS100-16TX diagnostics and provides information on troubleshooting common problems. • Appendix A, Technical Specifications , provides the SmartSTACK 100 ELS100-16TX specifications and basic cabl...

Introduction 1-3 • 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,...

1-4 Introduction The following conventions are also used in this document: 1.4 RELATED DOCUMENTATION The following documentation may assist the user in using this product: • Getting Started with the SmartSTACK 100 ELS100-16TX - contains the basic information for using the SmartSTACK 100 ELS100-16TX....

Introduction 1-7 The SmartSTACK ELS100-16TX goes beyond switching basics incorporating unique management features, including, RMON statistics and Broadcast/multicast storm protection, proactive alarms, and both in-band and out-of-band SNMP management. The SmartSTACK ELS100-16TX uses an ASIC-based sw...

1-8 Introduction Access Control (MAC) sub-layer of the Data Link layer. Figure 1-2 shows the OSI Reference Model. Figure 1-2. OSI Reference Model Port Trunking Another performance enhancing feature of the SmartSTACK ELS100-16TX is Port Trunking. The SmartSTACK ELS100-16TX allows two Trunk groups of ...

Introduction 1-9 ports allowing the switch port and an attached device to negotiate for full or half-duplex modes of operation. The SmartSTACK 100 ELS100-16TX also supports auto-negotiation as defined by IEEE 802.3u and will automatically set the port to the proper mode (10 Mbps, half/full duplex or...

1-10 Introduction Figure 1-3. Typical Switching Application By forwarding only packets addressed to devices on other network segments, the SmartSTACK 100 ELS100-16TX reduces unnecessary traffic and thereby enhances the overall performance of the network. Note: If the packet address is not found in t...

Introduction 1-11 packets to the LAN. If there is a cable break or a port failure, the network topology is automatically reconfigured by the Spanning Tree protocol to create an alternate path to the LAN. 1.5.2 SmartSTACK 100 ELS100-16TX Bridge Address Table The SmartSTACK 100 ELS100-16TX creates and...

1-12 Introduction Each dynamic entry includes: • An Ethernet MAC address • A single port number of the LAN on which the address resides • The age of the entry The SmartSTACK 100 ELS100-16TX stores 8192 dynamic (learned) entries in its Bridge Address Table. 1.5.3 SmartSTACK 100 ELS100-16TX Port Mirro...

1-14 Introduction Figure 1-4 illustrates the trunking of multiple SmartSTACK 100 ELS100-16TX ports to increase the bandwidth. Figure 1-4. SmartSTACK 100 ELS100-16TX Trunking with 100 Mbps Ports Virtual Workgroups The SmartSTACK 100 ELS100-16TX allows you to define ports for logical groups of associa...

Introduction 1-15 Figure 1-5 shows two Ethernet segments, A and B, that do not include a SmartSTACK 100 ELS100-16TX. Figure 1-5. Multiple Ethernet Segments Sharing 100 Mbps Bandwidth Each host on segments A and B is limited to sharing a network bandwidth of 10 Mbps. A B Repeater Traffic Traffic

1-16 Introduction Figure 1-6 shows two Ethernet segments that take advantage of the virtual workgroup feature of the SmartSTACK 100 ELS100-16TX and the increased bandwidth applied to each A and B host. Figure 1-6. Using the SmartSTACK 100 ELS100-16TX to Create Virtual Workgroups to Help Optimize Ban...

Introduction 1-17 As illustrated in the previous diagram, virtual workgroups allow you to associate multiple ports and define a workgroup. In reality, you are assigning workgroup IDs to SmartSTACK 100 ELS100-16TX ports. 1.6 LOCAL CONSOLE MANAGER The Local Console Manager (LCM) is a command-line inte...

1-18 Introduction 1.6.1 Command Syntax Conventions The following conventions apply as you use LCM commands: • Press the Enter key to execute a command after you type it in. • A port range is either a single port number, or a list of port numbers separated by commas or hyphens. For example, 3 is port...

Introduction 1-19 1.6.2 Basic LCM Commands If you are going to manage the SmartSTACK 100 ELS100-16TX using LCM, you first must connect the SmartSTACK 100 ELS100-16TX to an ASCII terminal or terminal emulator. See Section 2.5, Connecting the Local Console Manager, for instructions. When you want to u...

Introduction 1-21 Erase Entering erase to erase the current SmartSTACK 100 ELS100-16TX configuration returns all parameters to the default values. Exit or Logout Logs you out of LCM. (The exit command is functionally equivalent to the logout command.) Traplog Displays the traps messages captured by ...

2-1 CHAPTER 2 UNPACKING AND INSTALLING YOUR ELS100-16TX Carefully unpack the ELS100-16TX from the shipping carton and inspect it for possible damage. If any damage is evident, contact your supplier. The shipping carton contains the following: • The ELS100-16TX unit • One AC power cord • Console Cabl...

Unpacking and Installing Your ELS100-16TX 2-3 Table 2-1. Meaning of ELS100-16TX LEDs LED State Meaning Port Status ModeTX RX ACT COL FDX 100 MON USR On On On On OnOffOnOffOnBlinkOn Indicates port is transmitting a packet. Indicates port is receiving a packet. Indicates port is transmitting or receiv...

2-4 Unpacking and Installing Your ELS100-16TX Table 2-2 describes the ELS100-16TX buttons. 2.2 INSTALLING AN EPIM The ELS100-16TX provides two slots for a Cabletron EPIM-100FX (Ethernet Port Interface Module). The ELS100-16TX is shipped without EPIMs. To install an EPIM, follow the procedure below: ...

2-6 Unpacking and Installing Your ELS100-16TX 2.3 INSTALLING THE ELS100-16TX Rack-Mounting an ELS100-16TX Table 2-3 describes some general considerations you should be aware of before mounting an ELS100-16TX in a rack assembly. The ELS100-16TX can be rack-mounted in a standard 19-inch equipment cabi...

Unpacking and Installing Your ELS100-16TX 2-7 . Figure 2-3. Attaching Rackmount Brackets 2. Place the ELS100-16TX chassis in the cabinet. 3. Secure the ELS100-16TX with the rackmount fasteners by inserting and securing a fastener through each of the four slots in the rackmount brackets, as shown in ...

2-8 Unpacking and Installing Your ELS100-16TX 4. Once the ELS100-16TX is installed, plug the AC power cord into the AC power connector on the rear of the ELS100-16TX chassis. Plug the other end of the power cord into a three-prong grounded outlet. 2.4 CHECKING THE POWER-UP DIAGNOSTICS SEQUENCE Befor...

Unpacking and Installing Your ELS100-16TX 2-9 To connect the LCM: 1. Connect your ASCII terminal or terminal emulator to the out- of-band management RS232C port on the front panel of the ELS100-16TX using the standard RJ-45 twisted pair cable shipped with the unit. (Only three wires are necessary: R...

2-10 Unpacking and Installing Your ELS100-16TX 2.6.1 Connecting UTP Cables Before connecting a segment to the ELS100-16TX, check each end of the segment to verify wire crossover. Connect a twisted pair segment to the ELS100-16TX as follows: 1. Ensure that the device at the other end of the segment i...

Unpacking and Installing Your ELS100-16TX 2-11 b. Verify that the RJ45 connectors on the twisted pair segment have the proper pinouts (Figure 2-6) and check the cable for continuity. Figure 2-6. Cable Pinouts - (RJ45) Crossover Cable c. Check that the twisted pair connection meets the dB loss and ca...

2-12 Unpacking and Installing Your ELS100-16TX Fiber Optic Network Connection 1. Remove the protective plastic covers from the fiber optic ports on the applicable port on the module and from the ends of the connectors. 2. Insert one end of the SC connector into the EPIM-100FX installed in the ELS100...

Unpacking and Installing Your ELS100-16TX 2-13 Figure 2-7. EPIM-100FX Port 4. Verify that a Link exists by checking that the port LINK LED is solid green. If the LINK LED is off, perform the following steps until it is on: a. Check that the power is turned on for the device at the other end of the L...

3-1 CHAPTER 3 CONFIGURING YOUR ELS100-16TX The ELS100-16TX does not require any additional configuration to operate as a standard, transparent switch. However, if you want to use any of the ELS100-16TX advanced functions, you must first assign an IP (Internet Protocol) address to any of the ports on...

3-2 Configuring Your ELS100-16TX The following sections describe how to configure the optional parameters of the ELS100-16TX using LCM commands, including: • Assigning IP addresses • Enabling and disabling bridging • Displaying bridging functions • Enabling and disabling trunking • Displaying trunki...

Configuring Your ELS100-16TX 3-3 • Class B addresses are used for medium sized networks. The first two bytes identify the network and the last two identify the node. The first byte of a class B address must be in the range 128–191. The address 128.150.50.10 identifies node 50.10 on network 128.150. ...

3-4 Configuring Your ELS100-16TX 3.1.1 Displaying IP Addresses To display IP addresses, subnet masks, and MAC addresses of all ports on the ELS100-16TX you are configuring, at the LCM prompt: 1. Type ipaddr LCM displays the current IP address table, for example: 3.1.2 Deleting an IP Address To delet...

Configuring Your ELS100-16TX 3-5 To change the subnet mask, at the LCM prompt: 1. Type ipaddr <PORT-NUMBER> <IP ADDRESS> <SUBNET MASK> For example, ipaddr 6 192.138.217.40 255.255.240.0 would set the subnet mask for port 6 to 255.255.240.0. LCM responds by redisplaying the current ...

3-6 Configuring Your ELS100-16TX Using LCM to enable bridging for a port or port range, at the LCM prompt: 1. Type bridge [PORT-RANGE [{off|on|noBPDU}]] For example, bridge 2 on would enable bridging on port 2. LCM responds: 3.3 DISABLING BRIDGING To turn off the bridging function for a port or port...

Configuring Your ELS100-16TX 3-7 You could also type bridge [PORT-RANGE] to look at a specific range of ports. For example bridge 2-4 would display bridging functions for ports 2, 3, and 4. 3.5 ENABLING TRUNKING If your network configuration requires you to connect two or more ELS100-16TXs (or other...

3-8 Configuring Your ELS100-16TX Figure 3-1. Trunk Connections Trunk Groups Each set of connections between two ELS100-16TXs is called a Trunk Group. You can create up to eight trunk groups, each with up to eight ports, to interconnect your ELS100-16TXs. For example, if you have three ELS100-16TXs (...

3-10 Configuring Your ELS100-16TX For ELS100-16TX B, at the LCM prompt: b. Type trunk 3-10,14-15 on For ELS100-16TX C, at the LCM prompt: c. Type trunk 3-10 on Each ELS100-16TX determines which ports are part of which Trunk Group. After Trunk Group configuration, the ELS100-16TXs complete the standa...

Configuring Your ELS100-16TX 3-11 3.7 DISPLAYING TRUNKING STATUS To check the status of your current trunking configuration, at the LCM prompt: 1. Type trunk <PORT-RANGE> The display could look like the following: Note: IP Addresses are not required for trunking to function. To check the statu...

Configuring Your ELS100-16TX 3-13 • Perturbed — Trunking is enabled, and a good trunk connection has been established. However, the forwarding of data packets is temporarily suspended to allow for a change in the membership of the Trunk Group. 3.8 ENABLING PORT MIRRORING The ELS100-16TX allows you t...

3-14 Configuring Your ELS100-16TX 3.10 DISPLAYING MIRRORING STATUS To check the status of your current mirroring configuration, at the LCM prompt: 1. Type mirror <PORT> The display could look like the following: Note: The mirror command will display the status of all ports, even if a specific ...

3-16 Configuring Your ELS100-16TX 3.11 DEFINING AND DELETING WORKGROUPS The ELS100-16TX allows you to define logical groups of associated ports (virtual workgroups) to provide a more efficient flow of traffic across your Ethernet network. Virtual workgroups offer you the ability to limit broadcasts ...

Configuring Your ELS100-16TX 3-17 The LCM commands used to create the previous configuration are as follows: 1. To create workgroup A on ports 3, 4, 5, 13, and 16: ESL10-26 > workgroup A 3-5,13,16 LCM responds with the following display: Name: a Ports: 3, 4, 5, 13, 16 Info: All 2. To create workg...

3-18 Configuring Your ELS100-16TX To display information about a specific workgroup, at the LCM prompt: 1. Type workgroup NAME To create or modify a workgroup, at the LCM prompt: 1. Type workgroup NAME PORT-RANGE INFO To delete a workgroup, at the LCM prompt: 1. Type workgroup NAME delete To create ...

Configuring Your ELS100-16TX 3-19 5. LCM prompts you to verify the new community name by retyping it. 6. Retype the new community name. 3.13 CONFIGURING BROADCAST/MULTICAST STORM PROTECTION The ELS100-16TX provides automatic protection against broadcast/multicast storms. Multicast storms are excessi...

3-20 Configuring Your ELS100-16TX The two Management Information Base (MIB) variables for configuring multicast storm protection are: • kxifTxStormCnt – specifies the maximum number of multicasts that can be broadcast within the given time. • kxiTxStormTime – specifies the period of time that the ma...

3-22 Configuring Your ELS100-16TX Set Community Name The set community name variable ( kxadminAnyPass ) and get community name variable ( kxadminGetPass ) must be set to the value of the community name used by the SNMP manager for performing either set or get operations. A zero length community name...

Monitoring and Managing Your ELS100-16TX 4-3 • The number of spanning tree topology changes that have occurred since the ELS100-16TX was last reset. • The time since a topology change was last initiated. • The physical location of the ELS100-16TX. • The name and address of the contact person for the...

4-4 Monitoring and Managing Your ELS100-16TX 4.3 USING LCM TO CHECK ELS100-16TX STATUS The LCM commands that enable you to quickly check on the status of the ELS100-16TX include: • Status • Address display • Ipaddr • Ident These LCM commands are described in the sections that follow. 4.3.1 Displayin...

Monitoring and Managing Your ELS100-16TX 4-7 To display all MAC addresses, at the LCM prompt: 1. Type addresses display any LCM responds with a list of all MAC addresses, their associated ports, the type, age, and number of frames from and to that address. If you do not specify any , only the learne...

4-8 Monitoring and Managing Your ELS100-16TX LCM would display: The ipaddr command displays the IP addresses, subnet masks, and MAC addresses of all ELS100-16TX ports. At the LCM prompt: 1. Type ipaddr LCM displays the current IP address table, for example. 4.3.3 Displaying Manufacturing Information...

4-10 Monitoring and Managing Your ELS100-16TX 4.5.1 Disabling a Port There can be times when you need to disable a specific Ethernet port, for example, after you have determined that there is faulty equipment. Disabling a port effectively stops all bridging functions for that port. Disabled ports do...

Monitoring and Managing Your ELS100-16TX 4-11 For example, enable 7-9 would enable ports 7, 8, and 9. LCM responds: noRIP Option The Routing Information Protocol (RIP) is one of the protocols that allows the ELS100-16TX to build an accurate, current routing table. This table includes the networks it...

4-12 Monitoring and Managing Your ELS100-16TX LCM displays the current IP address table, for example: To change the subnet mask, at the LCM prompt: 1. Type ipaddr <PORT-NUMBER> <IP ADDRESS> <SUBNET MASK> For example, ipaddr 6 192.138.217.40 255.255.240.0 would set the subnet mask f...

Monitoring and Managing Your ELS100-16TX 4-13 3. Enter the new community name. LCM prompts you to verify the new community name by retyping it. 4. Retype the new community name. 4.5.5 Setting the Baud Rate You can set the baud rate for your LCM console connection. The options for baud rate include: ...

4-14 Monitoring and Managing Your ELS100-16TX To change the baud rate setting, at the LCM prompt: 1. Type baud <baud rate> For example, baud 9600 would set the baud rate to 9600. LCM responds: 4.5.6 Setting a Reboot Time You can enter the number of seconds the ELS100-16TX waits before rebootin...

5-2 ELS100-16TX Diagnostics and Troubleshooting 5.1.2 Specific Power-up Tests The power-up diagnostic tests performed on the ELS100-16TX include: • ROM checksum test • Instruction/Data memory test • FLASH checksum test • NVRAM checksum test 5.1.3 Software Checksum Comparison When the ELS100-16TX reb...

ELS100-16TX Diagnostics and Troubleshooting 5-3 5.1.4 Power-up Diagnostics Results After completion of the power-up diagnostic sequence, both the Power (Pwr) and CPU LEDs located on the front panel of the ELS100-16TX should be on. 5.2 RESPONSES TO FAILURES AT POWER-UP How the ELS100-16TX responds to...

5-6 ELS100-16TX Diagnostics and Troubleshooting Table 5-2 describes the ELS100-16TX buttons. 5.4 TROUBLESHOOTING This section lists several situations that could happen while using the ELS100-16TX, and suggests appropriate action. Because every situation is potentially unique, the corrective actions...

A-2 Technical Specifications Diagnostic LEDs Individual port link status Individual port segment status Segment status, specifying one of the following: - Transmit activity - Receive activity - Both Transmit and Receive activity - Collision - 100 (Mbps) - Duplex - MON (monitor) - User-defined CPU Po...

Technical Specifications A-3 Address Table Size 8,192 dynamic entries Management Support • MIB II, 802.1d, 802.3, and Cabletron Enterprise MIB • Cabletron Systems Local Console Manager (LCM) • Any SNMP-based network management system Regulatory Compliance Safety UL 1950, CSA C22.2 No. 950, EN 60950,...

Technical Specifications A-5 a. The “+” and “-” signs are used to represent the polarity of the two wires that make up each wire pair. A.4 STRAIGHT-THROUGH WIRING If the twisted-pair link segment is to join two ports on a switch, and only one of the ports has an internal crossover, the two pairs of ...

A-6 Technical Specifications A.6 THE 5 - 4 - 3 RULE Between any two nodes (i.e., PCs or other stations) on the network, there can be: • Up to five segments in series • Up to four repeaters or multi-port hubs • Up to three populated segments (that is, segments attached to two or more PCs). The remain...

Technical Specifications A-7 Figure A-2. EPIM-100FX Specifications for the EPIM-100FX are listed in Table A-6. The transmitter power levels and receive sensitivity levels listed are peak power levels after optical overshoot. A peak power meter must be used to correctly compare the values given above...

B-1 APPENDIX B GLOSSARY addressA set of characters that uniquely identifies a station, peripheral device, node, or other unit in a network. address tableA database of device addresses and their associated ports maintained by a switch or bridge for use in making data packet forwarding and filtering d...

B-2 Glossary backboneThe major, central transmission path for a network. A backbone usually handles high-volume, high-density traffic. Typically a backbone connects various LANs into an integrated network. bandwidthA measure of the amount of traffic a given medium can handle at one time: The communi...