ETHERNET SWITCH MODULE (3E02-04/3E05-04/3E07-04/3E08-04 AND 3E02-08-ATX) USER GUIDE SEGMENT 1 SEGMENT 2 LINK RX OFFLINE X COL TX SEGMENT 1 OFFLINE QUAD IEEE 802.3 / ETHERNET 10BASET SEGMENT 4 SEGMENT 3 LINK RX X COL TX SEGMENT 2 LINK RX X QUAD IEEE 802.3 / ETHERNET AUI SEGMENT 1 X COL TX PWR RESET QUAD IEEE 802.
NOTICE 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.
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. NOTE: This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC rules.
Notice CABLETRON SYSTEMS, INC. PROGRAM LICENSE AGREEMENT IMPORTANT: Before utilizing this product, carefully read this License Agreement. This document is an agreement between you, the end user, and Cabletron Systems, Inc. (“Cabletron”) that sets forth your rights and obligations with respect to the Cabletron software program (the “Program”) contained in this package. The Program may be contained in firmware, chips or other media.
Notice UNITED STATES GOVERNMENT RESTRICTED RIGHTS The enclosed product (a) was developed solely at private expense; (b) contains “restricted computer software” submitted with restricted rights in accordance with Section 52227-19 (a) through (d) of the Commercial Computer Software - Restricted Rights Clause and its successors, and (c) in all respects is proprietary data belonging to Cabletron and/or its suppliers.
CONTENTS CHAPTER 1 INTRODUCTION 1.1 Document Conventions ............................................................... 1-2 1.2 Related Manuals.......................................................................... 1-3 1.3 Getting Help................................................................................. 1-3 1.4 General Description..................................................................... 1-4 1.5 3E02-04 Ethernet Switch Module ................................................ 1-5 1.
Contents CHAPTER 3 CONFIGURING 3.1 Introduction ..................................................................................3-1 3.2 Connecting the Local Console Manager......................................3-2 3.3 LCM Commands ..........................................................................3-2 CHAPTER 4 MONITORING 4.1 Displaying Port Status..................................................................4-1 4.1.1 Status Command.............................................................
CHAPTER 1 INTRODUCTION This manual is for system administrators responsible for configuring, monitoring and maintaining the ATX. It should be used with the ATX User Guide and the ATX MIB Reference Guide. The contents of each chapter are described below. • Chapter 1, Introduction, provides a general description of the modules. • Chapter 2, Connecting to the Network, describes how to physically attach a module to an Ethernet network.
Chapter 1: Introduction 1.1 DOCUMENT CONVENTIONS The following conventions are used in presenting information in this manual: Commands, prompts, and information displayed by the computer appear in Courier typeface: Current Number of Station Addresses: 5 Current Number of Learned Addresses: 133 Number of Defined Filters: 4 Information that you enter appears in Courier bold typeface: ATX >status Information that you need to enter with a command is enclosed in angle brackets <>.
Related Manuals 1.2 RELATED MANUALS You may need to refer to the following documentation when you are using the Ethernet module: • ATX User Guide – contains installation and configuration instructions for the ATX. • ATX MIB Reference Guide – describes the use of Cabletron’s enterprise MIB. If you need internetworking reference material, you may find the following books helpful: • Interconnections, Bridges and Routers, Radia Perlman, Addison Wesley 1992.
Chapter 1: Introduction 1.4 GENERAL DESCRIPTION Cabletron Systems Ethernet Switch Modules connect the ATX to a maximum of four individual Ethernet IEEE 802.3 LANs. The Ethernet Switch Module (3E02-08-ATX) connects to a maximum of eight Ethernet IEEE 802.3 LANs. Both module types enable connectivity to FDDI, Token Ring, and Ethernet networks, and can be configured to support Transparent Spanning Tree, Source Routing, or Source Routing Transparent Bridging on each of the ports.
3E02-04 Ethernet Switch Module Each module provides connectivity to the multiple LANs. Since packets are bridged/routed across Ethernet Switch Modules only when it is necessary to reach the end device, each four port module can support four distinct 10 Mbps LANs, while the eight port module supports eight distinct 10 Mbps LANs. S s B bp ET G U 1.
Chapter 1: Introduction 1.5.1 Connectors The 3E02-04 includes eight 8-pin RJ45 ports for attachment directly to the network through UTP cabling. The ATX power supply provides the power for the module. NOTE 1.5.2 An internal receive/transmit pair crossover is provided in the second connector (far right, marked with an X) on each port. This means that when either a station or server is directly attached to a 3E02-04 port, you can choose to use either straight-through or crossover cabling.
3E08-04 Ethernet Switch Module 1.6.1 Connectors The 3E07-04 includes four pairs of BNC barrel connectors for thin coaxial cabling. Each of the four segments provides an internal BNC T-connector, therefore an external T-connector is not required. The ATX power supply provides the power for the module. 1.6.2 LEDs The 3E07-04 contains a total of 10 green LEDs labeled RX and TX for each segment, plus PROC and PWR for the module. The LEDs are described in Chapter 5 of this manual. 1.6.
Chapter 1: Introduction 1.7.1 Connectors The 3E08-04 includes four pairs of fiber optic ST connectors for fiber optic cabling. Receive (RX) and transmit (TX) connectors are clearly marked on the front panel of the module. The ATX power supply provides the power for the module. 1.7.2 LEDs The 3E08-04 contains a total of 18 green LEDs labeled LNK, COL, RX and TX for each segment, plus PROC and PWR for the module. The LEDs are described in Chapter 5 of this manual. 1.7.
3E02-08-ATX Ethernet Switch Module 1.8.2 LEDs The 3E05-04 contains a total of 10 green LEDs labeled RX and TX for each segment, plus PROC and PWR for the module. The LEDs are described in Chapter 5 of this manual. 1.8.3 Offline Button Use the offline button before swapping the module, to take it offline until the replacement is installed. QUAD IEEE 802.3 / ETHERNET AUI SEGMENT 1 RESET SEGMENT 2 SEGMENT 3 SEGMENT 4 RX RX RX RX PROC TX TX TX TX PWR Figure 1-5 3E05-04 Front Panel 1.
Chapter 1: Introduction 1.9.2 LEDs The 3E02-08-ATX contains a total of 26 green LEDs labeled LINK, ACT, COL for each segment, plus PROC and PWR for the module. The LEDs are described in Chapter 5 of this manual. 1.9.3 Offline Button Use the offline button before swapping the module, to take it offline until the replacement is installed. OCTAL IEEE 802.
CHAPTER 2 CONNECTING TO THE NETWORK 2.1 INTRODUCTION This chapter provides reference material and instructions for a network administrator configuring the Ethernet Switch Modules. For instructions on adding a module to the ATX, see Chapter 6, Adding/Swapping Modules. 2.2 POWER-UP LED SEQUENCE Power-up the ATX and observe the LED sequence. It takes about 1 minute for the ATX to complete the power-up diagnostics.
Chapter 2: Connecting to the Network The power-up LED sequence for an Ethernet Switch Module not attached to a network is as follows: 1. All LEDs flash. 2. The PWR LED remains on, and the TX and RX LEDs flash. 3. 3E02-04: The PROC LED comes on for 5 seconds, then blinks, then remains lit. The RX, COL, and TX LEDs flash for 100 milliseconds. 3E07-04: The PROC, RX, and TX LEDs come on for 5 seconds, then the RX and TX LEDs go off. The PROC LED remains lit.
Connecting to a Network 2.3.1 Connecting the 3E02-04 Ethernet Switch Module You can connect each of the four 10BASE-T ports on the 3E02-04 to a 10BASE-T port on a device such as a workstation, server, hub, etc. using unshielded twisted pair wiring. The second RJ45 connector (far right, marked with an X) for each port on the 3E02-04 provide internal crossover. This means that you can choose which type of UTP cable (crossover or straight-through) you need to connect devices to these ports.
Chapter 2: Connecting to the Network You do not need to attach terminators to unattached segments. NOTE SEGMENT 1 OFFLINE SEGMENT 2 RX RX RX PROC TX TX TX TX PWR Figure 2-2 2.3.3 QUAD IEEE 802.3 / ETHERNET 10BASE2 SEGMENT 4 SEGMENT 3 RX Connecting the 3E07-04 Connecting the 3E08-04 Ethernet Switch Module You can connect each of the four pairs of ST fiber ports on the 3E08-04 to a 10BASE-FL port on a device such as a hub, etc. using fiber optic cable.
Connecting to a Network 2.3.4 Connecting the 3E05-04 Ethernet Switch Module You can connect each of the four AUI connectors on the 3E05-04 to an Ethernet network. To connect the 3E05-04 module to a thick coax network, you must use an AUI drop cable and a tap-type transceiver: 1. Attach a tap-type transceiver to the thick coax cable. Refer to the transceiver manufacturer’s manual for installation instructions. 2.
Chapter 2: Connecting to the Network 2.3.5 Connecting the 3E02-08-ATX Ethernet Switch Module You can connect each of the eight ports on the 3E02-08-ATX to a 10BASE-T port on a device such as a workstation, server, hub, etc. using UTP wiring. The RJ45 ports on the 3E02-08-ATX provide internal crossover, which means that, depending on whether crossover is provided on the device you’re connecting to, you can use either crossover or straight-through UTP cable to connect a device to a port.
CHAPTER 3 CONFIGURING 3.1 INTRODUCTION You can configure the Ethernet Switch Modules using the following tools: • Local Console Manager (LCM) – allows you to monitor, manage, and configure your ATX through an out-of-band RS-232 connection • SPECTRUM Element Manager or the full SPECTRUM Enterprise network management platform • Any SNMP compliant network management system For more details about LCM, see your ATX User Guide.
Chapter 3: Configuring maintained in non-volatile memory and are saved across power cycles. Filtering information is covered in the ATX User Guide. 3.2 CONNECTING THE LOCAL CONSOLE MANAGER Connect the Local Console Manager (LCM) to the ATX. Refer to Chapter 2, Connecting to the Network, of the ATX User Guide for specific instructions. Make sure the ATX is powered on and press a few times. When the ATX > prompt appears, LCM is ready to use. 3.
CHAPTER 4 MONITORING 4.1 DISPLAYING PORT STATUS Using LCM, you can obtain the status of ports by typing status for the appropriate port. A sample display is shown below. 4.1.1 Status Command ATX >status 2 Port 2 (1st port on module 3) status Type: Ethernet/802.
Chapter 4: Monitoring • Spanning Tree - the port’s Spanning Tree state, which could be any one of the following states: - Blocking - The port is not currently the designated port to a LAN and is therefore not forwarding any packets. (This means there is another route to that LAN and, since the Spanning Tree protocol does not allow simultaneous redundant paths, this port is blocked. If the other route to that LAN goes down, this port would then start forwarding packets.
Displaying Port Status • Total Collisions - number of collisions during packet transmissions. • Excess Collisions - number of packet transmissions that were aborted due to 16 collisions (usually a transceiver problem). • RX FCS/Align Errs - number of times a received packet was discarded due to a bad checksum or Frame Alignment error. • Internal RX Errs - number of times an inbound packet was dropped due to an internal error.
Chapter 4: Monitoring Page 4-4 Ethernet Switch Module User Guide
CHAPTER 5 DIAGNOSTICS AND TROUBLESHOOTING 5.1 POWER-UP DIAGNOSTICS Built-in diagnostic capabilities for the Ethernet Switch Modules include: • Power-up diagnostics, which are run every time an Ethernet Switch Module is brought online. • Front panel status LEDs. • Local and remote loopback tests. • Temperature sensors. 5.1.1 Power-up Tests The power-up diagnostics assure that the ATX and all the installed modules are operational.
Chapter 5: Diagnostics and Troubleshooting Table 5-1 Meaning of 3E05-04 LED Indicators LED Meaning RX Ethernet port is receiving data (LED flashes) TX Ethernet port is transmitting data (LED flashes) PROC Processor is ready for operation POWER Module hardware is receiving power Table 5-2 Meaning of 3E07-04 LED Indicators LED Meaning RX 10BASE-2 port is receiving data (LED flashes) TX 10BASE-2 port is transmitting data (LED flashes) PROC Processor is ready for operation POWER Module ha
Operational Diagnostics Table 5-4 Meaning of 3E02-04 LED Indicators LED Meaning COL Receiver and transmitter active at the same time on 10BASE-T port and when port enters jabber state (LED flashes) LNK 10BASE-T port is connected to another device by a cable; both cable and port are working correctly (LED is turned on) RX 10BASE-T port is receiving data (LED flashes) TX 10BASE-T port is transmitting data (LED flashes) PROC Processor is ready for operation POWER Module hardware is receiving pow
Chapter 5: Diagnostics and Troubleshooting During a remote loopback test, the port is in normal operation, sending and receiving packets to its network. The ATX generates loopback packets which are sent out of the port to a particular destination device on the port’s network. The destination device echoes the packet back onto the network, and the originating port receives the packet.
Troubleshooting b. Remove the interface module by unscrewing the two retaining screws on the module’s front panel. Pull the module out using the “ears” on the front panel. c. Carefully but firmly press down on all socketed components. d. Re-install the module. Make sure the module is properly seated and tighten the retaining screws. e. Reset the ATX and observe the power-up sequence. 4. If it is still abnormal, contact Cabletron Systems Technical Support. 5.3.
Chapter 5: Diagnostics and Troubleshooting Page 5-6 Ethernet Switch Module User Guide
CHAPTER 6 ADDING/SWAPPING MODULES Once you have received your ATX, you may want to add a new module to expand your network bandwidth, replace a module with a module of a different type, or swap a module with another module of the same type. If you are: • Adding an Ethernet switch module to a previously vacant slot or to a slot that had a different type of module, refer to the section Adding an Ethernet Switch Module below, for instructions. • Replacing a module, refer to Section 6.
Chapter 6: Adding/Swapping Modules 4. Remove the installed interface module by pulling gently but firmly on the ears at the ends of the module’s front panel. 5. Gently slide the Ethernet switch module into the plastic guides in the module slot until it is completely inserted. Push the module firmly into place, as far as it will go, to fully engage the connectors at the back of the module with the backplane at the rear of the ATX chassis. 6. Tighten the screws on each side of the module’s front panel. 7.
Swapping An Ethernet Switch Module 7. Tighten the screws on each side of the module’s front panel. 8. If you took the original module offline by pressing the OFFLINE button, the new Ethernet Switch Module will automatically come back on line when it is inserted in the slot. If you used the LCM offline command to take the original module offline, you must use the online command to bring the new module online. 9. Check the module LED power-on sequence as described in Chapter 2, Connecting to the Network. 10.
Chapter 6: Adding/Swapping Modules Page 6-4 Ethernet Switch Module User Guide
APPENDIX A TECHNICAL SPECIFICATIONS Standards Compliance • Twisted pair Ethernet • Thin Coax Ethernet • Fiber Optic Ethernet • Ethernet Version 2 • IEEE 802.3, 10BASE-T, 10BASE2, 10BASE-FL Protocol Translations • TCP/IP • IPX • AppleTalk Dimensions Length 30.99 cm (12.2 in.) Width 24.13 cm (9.5 in.) Weight 1.02 kg (2.25 lb.
Appendix A: Technical Specifications Environmental Requirements Operating temperature 5˚ C to 40˚ C (41˚ F to 104˚ F) Storage temperature -30˚ C to 90˚ C (-22˚ F to 194˚ F) Relative humidity 0% to 95%, non-condensing Connectors 3E02-04 RJ45 for UTP 3E07-04 BNC for Thin Coaxial Cable 3E08-04 ST for Fiber Optics 3E05-04 DB15 for AUI 3E02-08-ATX RJ45 for UTP LEDs • Power • Processor (Processor status/ready) • Link • Collision (3E02-04 and 3E08-04 only) • Receive • Transmit Bridgi
Appendix A: Technical Specifications Certifications Safety UL 1950, CSA C22.
Appendix A: Technical Specifications Page A-4 Ethernet Switch Module User Guide
APPENDIX B CABLES B.1 TYPES/CONNECTORS Table B-1 Cable Types and Connectors Cable Type Male Connector Unshielded Twisted Pair 100 Ohm UTP, 22 - 26 AWG 0.4 - 0.6 mm, 2 pairs 8-pin RJ45 AUI External Transceiver Drop 15-pin DB15, AUI Thick Coaxial Cable 50 Ohm Coax N-Type Thin Coaxial Cable RG58 A/U or RG58 C/U 50 Ohm Coax BNC Multimode Fiber Optics 50/125, 62.5/125, 80/125 or 100/140 Micron Core/Cladding ST B.2 CABLE SPECIFICATIONS Table B-2 UTP Cable Specifications Type 100 Ohm (e.g.
Appendix B: Cables Table B-3 AUI Cable Specifications Type External Transceiver Drop Max. Drop Cable Length 165 ft (50 m) Min. Drop Cable Length None Max. Number of Attachments 2 Table B-4 Thick Coax Cable Specifications Type 50 Ohm Coax Max. Cable Segment Length 1640 ft (500 m) Min. Cable Segment Length 8.2 ft (2.5 m) Max. Number of Attachments 100 Table B-5 Thin Coax Cable Specifications Type RG58 A/U or RG58 C/U Coax Max. Cable Segment Length 606 ft (185 m) Min.
10BASE-T Pin Assignments B.3 10BASE-T PIN ASSIGNMENTS An Ethernet cable link requires the use of two pairs of a multi-pair cable. While a cable containing only two pairs of wire can be used, it is more common to use four-pair cabling for 10BASE-T links. The jacket of each wire in a four-pair cable will have an overall color; brown, blue, orange, green, or white.
Appendix B: Cables Table B-7 RJ45 Crossover Pin Assignments RJ45 Pin Assignment* 1 Tx+ 2 Tx– 3 Rx+ 6 Rx– *The “+” and “–” signs are used to represent the polarity of the two wires that make up each wire pair. B.3.1 Crossover Wiring Two Ethernet 10BASE-T devices can communicate only if the transmitter on one device is connected to the receiver on the other device. This reversal, or crossover function, can be implemented either in the wiring or in the device itself.
AUI Pin Assignments B.3.2 Straight-Through Wiring If the UTP link segment is to join two ports and only one of the ports has an internal crossover, the two pairs of wires must be straight-through, as shown below. Table B-9 Straight-Through RJ45 Pin Assignments Hub Device 1 (Tx+) 3 (Tx+) 2 (Tx–) 6 (Tx–) 3 (Rx+) 1 (Rx+) 6 (Rx–) 2 (Rx–) B.
Appendix B: Cables Table B-10 NOTE AUI Pin Assignments (Continued) Pin Circuit Signal Name 14 VS Voltage Shield Shell PG Protective Ground (Conductive Shell) Voltage Plus (VP) and Voltage Common (VC) use a single twisted-pair in the AUI cable. B.5 5 - 4 - 3 RULE Between any two nodes (i.e., PCs or other stations) on the network, there may be: • Up to 5 segments in series • Up to 4 repeaters or multi-port hubs • Up to 3 populated segments (that is, segments attached to two or more PCs).
5 - 4 - 3 Rule B.5.1 Definitions Backbone A coax segment with hubs, possibly file servers. Cascade A method of interconnecting hubs using their ports rather than their stacking connectors. Link Segment A length of twisted-pair or fiber cable joining a pair of devices in a star topology (e.g., two hubs or a hub and a station). Populated Segment A coax segment to which multiple devices are attached: maximum 100 transceivers for thick coax and 30 devices (e.g., stations and hubs) for thin coax.
Appendix B: Cables Page B-8 Ethernet Switch Module User Guide
INDEX A L Adding modules 6-1 LEDs diagnostic 5-1 power up sequence types 1-6 to 1-10 B Bridging domains 2-1 A-2 M C Module versions Cabling.
Index Index-2 Ethernet Switch Module User Guide
