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Enterasys Networks Fast Network 10 manuel d'utilisation

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Table des matières du manuel d’utilisation

  • Page 1

    F AST NETW ORK 10 USER GUIDE X2 X 3X 4X 5X 6X 7X 8X 9X 10X 11X 12X AUI 1 Link 23 1 456 7 8 91 0 1 1 1 2 A B Usr Segment Status Select TX RX Act Col Reset Ready FN10-12 NMS Port Pwr X2 X 3X 4X 5X 6X 7X 8X 9X 10X 11X 12X 13X 14X 15X 16X 17X 18X 19X 20X 21X 22X 23X 24X 13 14 15 16 17 18 19 20 21 22 23 24 AUI 1 Link Link 23 1 456 7 8 91 0 1 1 1 2 A B U[...]

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    [...]

  • Page 3

    Fast Netw ork 10 User Guide i 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 ha ve been made. The hardware, firmware, or software described in this man[...]

  • Page 4

    ii Fast Netw ork 10 User Guide FCC NOTICE This device complies with P art 15 of the FCC rules. Operation is subject to the following tw o conditions: (1) this device may not cause harmful interference, and (2) this de vice must accept any interference receiv ed, including interference that may cause undesired operation. NOTE: This equipment has bee[...]

  • Page 5

    Fast Netw ork 10 User Guide iii 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 [...]

  • Page 6

    iv Fast Netw ork 10 User Guide UNITED STATES GOVERNMENT RESTRICTED RIGHTS The enclosed product (a) was de veloped solely at pri vate e xpense; (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 suc[...]

  • Page 7

    FastNET 10 User Guide v CONTENTS CHAPTER 1 INTRODUCTION 1.1 About This Manual....................................................................... 1-1 1.2 Getting Help................................................................................. 1-2 1.3 Document Conventions ............................................................... 1-3 1.[...]

  • Page 8

    Contents vi FastNET 10 User Guide CHAPTER 3 CONFIGURING Y OUR FN10 3.1 Assigning IP Addresses ............................................................... 3-3 3.1.1 Displaying IP Addresses ................................................. 3-4 3.1.2 Deleting an IP Address.................................................... 3-4 3.1.3 Changing a Su[...]

  • Page 9

    Contents FastNET 10 User Guide vii 4.5 Using LCM to Manage the FN10 ............................................... 4-15 4.5.1 Disabling a Port ............................................................ 4-15 4.5.2 Enabling a Port ............................................................. 4-16 4.5.2.1 noRIP Option ..............................[...]

  • Page 10

    Contents viii FastNET 10 User Guide APPENDIX A T ECHNICAL SPECIFICATIONS A.1 FN10 Specifications .................................................................... A-1 A.2 Serial Cable Pin Assignments ..................................................... A-3 A.3 10BASE-T Pin Assignments ....................................................... A-3 [...]

  • Page 11

    Fast Netw ork 10 User Guide P age 1-1 CHAPTER 1 INTR ODUCTION 1.1 ABOUT THIS MANUAL This manual is for system administrators responsible for configuring, monitoring, and maintaining the Fast Netw ork 10 (FN10). Y ou should hav e a familiarity with netw orking concepts and principles. In addition, a basic understanding of SNMP is helpful. Some FN10[...]

  • Page 12

    Chapter 1: Introduction P age 1-2 Fast Netw ork 10 User Guide • Chapter 5, FN10 Filters , describes FN10 filtering and provides specific examples of ho w filters can be used. It also pro vides instructions for adding, modifying, and deleting Port filters using the Local Console Manager (LCM). • Chapter 6, FN10 Diagnostics and Troubleshootin[...]

  • Page 13

    Document Con ventions Fast Netw ork 10 User Guide P age 1-3 1.3 DOCUMENT CON VENTIONS The follo wing con v entions are used throughout this document: LCM commands, prompts, and information displayed by the computer appear in Courier typeface, for e xample: Current Number of Learned Addresses: 133 Number of Defined Filters: 4 Information that you en[...]

  • Page 14

    Chapter 1: Introduction P age 1-4 Fast Netw ork 10 User Guide 1.4 RELATED DOCUMENTATION The follo wing documentation may assist the user in using this product: • Fast Network 10 MIB Refer ence Guide – contains enterprise MIB information. • Inter connections, Bridges and Routers, Radia Perlman, Addison W esley © 1992. • Internetworking with[...]

  • Page 15

    Overview Fast Netw ork 10 User Guide P age 1-5 . Figure 1-1 FN10 Front P anels Figure 1-2 FN10 Rear P anel with the Optional Fast Ethernet P or ts The FN10: • Provides dedicated bandwidth for each netw ork connected to its ports. • Provides full store and forw ard bridging functionality . • Provides complete error checking functionality . •[...]

  • Page 16

    Chapter 1: Introduction P age 1-6 Fast Netw ork 10 User Guide • Implements the Spanning T ree protocol (802.1d). • Configured with factory-set defaults for immediate plug-and-play capability . In addition, the FN10 of fers features that can help you manage and maintain your network, such as: • Configuration and management using the Simple N[...]

  • Page 17

    Overview Fast Netw ork 10 User Guide P age 1-7 Media Access Control (MA C) sub-layer of the Data Link layer . Figure 1-3 sho ws the OSI Reference Model. Figure 1-3 OSI Reference Model Because the FN10 does not process any Netw ork Layer information, it provides a high le v el of performance in terms of packet throughput. In addition, the FN10 does [...]

  • Page 18

    Chapter 1: Introduction P age 1-8 Fast Netw ork 10 User Guide forwards the packet to the netw ork segment associated with that destination address. Ho we ver , if the packet’ s source and destination address are on the same network se gment, kno wn as local traffic , the packet is automatically discarded (i.e., ignored by the FN10). For e xample[...]

  • Page 19

    Overview Fast Netw ork 10 User Guide P age 1-9 automatically reconfigured by the Spanning T ree protocol to create an alternate path to the LAN. 1.5.2 FN10 Bridge Address T able The FN10 creates and maintains a dynamic database of addresses called the Bridge Address T able. The FN10 e xamines e very packet to determine its source address and LAN s[...]

  • Page 20

    Chapter 1: Introduction P age 1-10 Fast Netw ork 10 User Guide • A single port number of the LAN on which the address resides • The age of the entry • V arious statistics counters • Any filtering restrictions added by a Netw ork Management Station (NMS) Each static entry contains the same information as a dynamic entry , except the static [...]

  • Page 21

    Overview Fast Netw ork 10 User Guide P age 1-11 Additional FN10 features, such as trunking, Fast Ethernet, and virtual workgroups allo w you to optimize bandwidth and design a more ef ficient flo w for your network traf fic. 1.5.4.1 FN10 T runking The FN10 allo ws multiple trunk groups with up to eight ports each to be connected between the FN10[...]

  • Page 22

    Chapter 1: Introduction P age 1-12 Fast Netw ork 10 User Guide Figure 1-6 FN10 Application #2 1.5.4.2 FN10’ s Fast Ethernet Option The FN10, configured with the Fast Ethernet option, has tw o additional ports that provide a f ast Ethernet connection of 100 Mbps. Applying this increased bandwidth to the pre vious example, the Manuf acturing Depar[...]

  • Page 23

    Overview Fast Netw ork 10 User Guide P age 1-13 Figure 1-7 FN10 Application #3 Figure 1-8 illustrates ho w the FN10 can be used in a backbone network configuration using increased bandwidth of the optional Fast Ethernet configuration. Figure 1-8 FN10 Application #4 FN10 / FE LAN segment FN10 / FE 100 Mbps bandwidth LAN segment (Fast Ethernet) Rea[...]

  • Page 24

    Chapter 1: Introduction P age 1-14 Fast Netw ork 10 User Guide 1.5.4.3 Virtual W orkgr oups The FN10 allo ws you to define ports for logical groups of associated hosts (virtual workgroups) to pro vide a more efficient flo w of traf fic across your Ethernet network. V irtual workgroups of fer you the ability to limit broadcasts to logical domain[...]

  • Page 25

    Local Console Manager Fast Netw ork 10 User Guide P age 1-15 Figure 1-10 Using the FN10 to Create Virtual W orkgroups to Help Optimize Bandwidth A host from workgroup A can limit a broadcast to all hosts within workgroup A or B and prev ent the broadcast from going across the network and adding to the amount of contention for the limited 10 Mbps ba[...]

  • Page 26

    Chapter 1: Introduction P age 1-16 Fast Netw ork 10 User Guide The follo wing sections describe LCM command syntax and the basic LCM commands for logging in, logging out, and getting help. • LCM commands used for configuring the FN10 are described in Chapter 3, Configuring Your FN10. • LCM commands used for monitoring and managing the FN10 are[...]

  • Page 27

    Local Console Manager Fast Netw ork 10 User Guide P age 1-17 • Information that you need to enter with an LCM command is enclosed in square brackets [ ]. For example, you must enter a port number and an IP address to ex ecute the ipaddr [PORT-NUMBER] [IP ADDRESS] command: FN10 > ipaddr 6 192.138.217.40 • Parameters that appear in all capital[...]

  • Page 28

    Chapter 1: Introduction P age 1-18 Fast Netw ork 10 User Guide 1.6.2.1 Help Displays the menu of av ailable commands. Help can also be displayed by typing a question mark ( ? ). The output from the help command is displayed belo w . 1.6.2.2 Erase Entering erase to erase the current FN10 configuration sets up the IP address on Port 1 to 192.0.2.1 ([...]

  • Page 29

    Local Console Manager Fast Netw ork 10 User Guide P age 1-19 1.6.2.3 Exit Logs you out of LCM. (The exit command is functionally equi v alent to the logout command.) 1.6.2.4 Logout The logout command logs you out of LCM. (The logout command is functionally equi v alent to the exit command.) 1.6.2.5 T raplog Displays the traps messages captured by t[...]

  • Page 30

    Chapter 1: Introduction P age 1-20 Fast Netw ork 10 User Guide[...]

  • Page 31

    Fast Netw ork 10 User Guide P age 2-1 CHAPTER 2 UNPAC KING AND INSTALLING Y OUR FN10 Carefully unpack the FN10 from the shipping carton and inspect it for possible damage. If any damage is e vident, contact your supplier . The shipping carton contains the follo wing: • The FN10 unit • One A C po wer cord • Console Cable kit • T wo rack-moun[...]

  • Page 32

    Chapter 2: Unpac king and Installing Y our FN10 P age 2-2 Fast Netw ork 10 User Guide Figure 2-1 FN10 12- and 24-P ort Front P anels Figure 2-2 FN10 Fast Ethernet (FE) Rear P anel Ethernet Attachment Unit Interface (AUI) Port RJ45 Ethernet 10BASE-T Status LEDs and Buttons Crossover Ports X2 X 3X 4X 5X 6X 7X 8X 9X 10X 11X 12X AUI 1 Link 23 1 456 7 8[...]

  • Page 33

    FN10 P anels Fast Netw ork 10 User Guide P age 2-3 T able 2-1 Meaning of FN10 LEDs LED Meaning Link (upper le vel of por t LEDs) On – Indicates the link is good. Off – Indicates there is no link. Status (lower le vel of por t LEDs) On/Blinking – Indicates you are monitoring the por t f or a selected segment status condition. Off – Indicates[...]

  • Page 34

    Chapter 2: Unpac king and Installing Y our FN10 P age 2-4 Fast Netw ork 10 User Guide T able 2-2 describes the FN10 buttons. 2.2 INSTALLING THE FN10 T able-mounting an FN10 If the FN10 is to be table-mounted, make sure you install the four stick-on feet on the bottom of the unit, as sho wn in Figure 2-3. In addition, make sure the unit is within re[...]

  • Page 35

    Installing the FN10 Fast Netw ork 10 User Guide P age 2-5 Rack-mounting an FN10 The table belo w describes some general considerations you should be aw are of before mounting a FN10 in a rack assembly . The FN10 can be rack-mounted in a standard 19-inch equipment cabinet. T o mount the FN10 in a rack assembly , apply the following steps: 1. Attach [...]

  • Page 36

    Chapter 2: Unpac king and Installing Y our FN10 P age 2-6 Fast Netw ork 10 User Guide 2. Place the FN10 chassis in the cabinet. 3. Secure the FN10 with the rack-mount fasteners by inserting and securing a fastener through each of the four slots in the rack-mount brackets, as shown in Figure 2-4. Figure 2-4 Rack-mounting the FN10 4. Once the FN10 is[...]

  • Page 37

    Connecting the Local Console Manager Fast Netw ork 10 User Guide P age 2-7 5. After several more seconds, the Ready LED will stay on, indicating that the power-up diagnostics sequence is complete. In addition, the Port Link LEDs will turn on for those ports with good links and the Segment Status LEDs will turn on (or flash) when the selected status[...]

  • Page 38

    Chapter 2: Unpac king and Installing Y our FN10 P age 2-8 Fast Netw ork 10 User Guide 2.4 CONNECTING THE FN10 TO THE NETWORK Installations v ary depending on existing wiring, application objecti v es, and other considerations. Be sure to hav e your current network topology map av ailable or contact your network administrator . The FN10 can be conne[...]

  • Page 39

    Adding or Replacing the Optional F ast Ethernet Module Fast Netw ork 10 User Guide P age 2-9 2.4.1 Connecting the A UI Interface The FN10 includes one Ethernet Attachment Unit Interface (A UI) connector (Port 1). T o connect the A UI to a thick coax network, you must use an A UI drop cable and a tap-type transcei v er: 1. Attach a tap-type transcei[...]

  • Page 40

    Chapter 2: Unpac king and Installing Y our FN10 P age 2-10 Fast Netw ork 10 User Guide Figure 2-5 Removing the FN10 Bac kplate 3. Insert the FE module assembly, making sure the edges of the board fit into the guides that allow the assembly to smoothly glide into place. Refer to Figure 2-6. Figure 2-6 Inserting the FE Module Assembly 4. When the FE [...]

  • Page 41

    Adding or Replacing the Optional F ast Ethernet Module Fast Netw ork 10 User Guide P age 2-11 Figure 2-7 Completed FE Module Installation 6. Reconnect the FN10 to the network, plug in the power cord, and power on the unit. 7. Configure the FE module using the LCM command line interface. Refer to Chapter 3, Configuring Your FN10 .[...]

  • Page 42

    Chapter 2: Unpac king and Installing Y our FN10 P age 2-12 Fast Netw ork 10 User Guide[...]

  • Page 43

    Fast Netw ork 10 User Guide P age 3-1 CHAPTER 3 CONFIGURING Y OUR FN10 The FN10 does not require any additional configuration to operate as a standard, transparent switch. Ho we ver , if you want to use any of the FN10’ s advanced functions, such as filtering, you must first assign an IP (Internet Protocol) address to any of the ports on the F[...]

  • Page 44

    Chapter 3: Configuring Y our FN10 P age 3-2 Fast Netw ork 10 User Guide • Displaying trunking status • Defining and deleting virtual workgroups • Assigning a community name NO TE Y ou can use the LCM erase command to erase all configuration inf ormation on the next system reset. If you are using a netw ork management tool other than LCM, r[...]

  • Page 45

    Assigning IP Addresses Fast Netw ork 10 User Guide P age 3-3 3.1 ASSIGNING IP ADDRESSES IP addresses for each port must be unique. IP addresses are di vided into classes based on what portion of the address is network or port information. The address classes are A, B, and C. • Class A addresses are used in very large netw orks that support many p[...]

  • Page 46

    Chapter 3: Configuring Y our FN10 P age 3-4 Fast Netw ork 10 User Guide 3.1.1 Displa ying IP Addresses T o display IP addresses, subnet masks, and MA C addresses of all ports on the FN10 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 T o delete an IP addr[...]

  • Page 47

    Enabling Bridging Fast Netw ork 10 User Guide P age 3-5 3.2 ENABLING BRIDGING The LCM bridge command allo ws you to set bridging options for a single port or a range of ports. The options include: •o f f • on (the default with BPDU enabled) •n o BPDU BPDU (Bridge Protocol Data Unit) is a data unit transmitted as part of the IEEE 802.1d Spanni[...]

  • Page 48

    Chapter 3: Configuring Y our FN10 P age 3-6 Fast Netw ork 10 User Guide 3.3 DISABLING BRIDGING T o turn off the bridging function for a port or port range, at the LCM prompt: 1. Type bridge [PORT-RANGE] off For example, bridge 2 off would disable bridging on port 2. LCM responds: 3.4 DISPLAYING BRIDGING FUNCTIONS T o display the bridging functions[...]

  • Page 49

    Enabling T runking Fast Netw ork 10 User Guide P age 3-7 3.5 ENABLING T RUNKING If your network configuration requires you to connect two or more FN10s together , b ut the applications you are running o ver the netw ork require more than 10 Mbps of bandwidth per connection, you can use the built-in trunking feature to increase bandwidth up to 80 M[...]

  • Page 50

    Chapter 3: Configuring Y our FN10 P age 3-8 Fast Netw ork 10 User Guide T runk Groups Each set of connections between two FN10s is called a T runk Gr oup . Y ou can create se veral T runk Groups to interconnect your FN10s. Each FN10 can hav e up to four T runk Groups. For e xample, if you ha ve three FN10s (A, B, and C), as sho wn in Figure 3-2, y[...]

  • Page 51

    Disabling T runking Fast Netw ork 10 User Guide P age 3-9 T o enable trunking for the example sho wn, you would: 1. Connect the desired ports of the FN10s together using 10BASE-T crossover cables. If FN10 A is handling only a small number of users, the A to B Trunk Group could have just two ports per FN10. If FN10 B and C are expected to interconne[...]

  • Page 52

    Chapter 3: Configuring Y our FN10 P age 3-10 Fast Netw ork 10 User Guide 1. Type trunk <PORT-RANGE> off For example, trunk 2-4 off 3.7 DISPLAYING T RUNKING STATUS T o check the status of your current trunking configuration, at the LCM prompt: 1. Type trunk <PORT-RANGE> The display could look like the follo wing: The follo wing conditi[...]

  • Page 53

    Displaying T runking Status Fast Netw ork 10 User Guide P age 3-11 T o check the status for ports configured for trunking, at the LCM prompt: 1. Type status <PORT-RANGE> The display could look like the follo wing: The follo wing conditions can be displayed: • Broken — T runking is enabled, b ut the port in non-operational. • Closed (or[...]

  • Page 54

    Chapter 3: Configuring Y our FN10 P age 3-12 Fast Netw ork 10 User Guide 3.8 DEFINING AND DELETING W ORKGR OUPS The FN10 allo ws you to define logical groups of associated hosts (virtual workgroups) to pro vide a more ef ficient flo w of traf fic across your Ethernet network. V irtual workgroups of fer you the ability to limit broadcasts to lo[...]

  • Page 55

    Defining and Deleting W orkgr oups Fast Netw ork 10 User Guide P age 3-13 The LCM commands used to create the pre vious configuration are as follo ws: 1. To create workgroup A on ports 3, 4, 5, 13, and 16: FN10 > 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 workgroup B on [...]

  • Page 56

    Chapter 3: Configuring Y our FN10 P age 3-14 Fast Netw ork 10 User Guide 2. To create workgroup B: FN10 > workgroup B 7,11,16,24 ip 198.113.121.0 LCM responds with the following display: Name: b Ports: 7, 11, 16, 24 Info: IP 198.113.121.0 255.255.255.0 In both cases, a specific NETMASK v alue was omitted and LCM assumed the standard IP address[...]

  • Page 57

    Assigning a Community Name Fast Netw ork 10 User Guide P age 3-15 T o delete a workgroup, at the LCM prompt: 1. Type workgroup NAME delete T o create or modify the port list for a specific workgroup, at the LCM prompt: 1. Type workgroup NAME PORT-RANGE T o modify the network classification of a specific workgroup, at the LCM prompt: 1. Type work[...]

  • Page 58

    Chapter 3: Configuring Y our FN10 P age 3-16 Fast Netw ork 10 User Guide 3.10 CONFIGURING MULTICAST STORM PR OTECTION The FN10 provides automatic protection against multicast storms. Multicast storms are excessi v e broadcasts to all ports, typically caused by a malfunctioning de vice. The y can result in se vere netw ork performance problems, inc[...]

  • Page 59

    Modifying MIB V ariables Fast Netw ork 10 User Guide P age 3-17 3.11 MODIFYING MIB V ARIABLES Specific instructions for controlling FN10 operations, modifying parameters, and so on, depend on the NMS you are using. This manual provides instructions for using LCM commands. Ho we v er , LCM commands do not exist for all configuration options. Y ou [...]

  • Page 60

    Chapter 3: Configuring Y our FN10 P age 3-18 Fast Netw ork 10 User Guide 3.11.4 A uthentication P ass w or d The set password and get password v ariables (from the SMC proprietary MIB), must be initialized with the correct authentication passwords. All requests from any SNMP manager contain a community name field. For set requests, the community [...]

  • Page 61

    Fast Netw ork 10 User Guide P age 4-1 CHAPTER 4 MONITORING AND MANAGING Y OUR FN10 Monitoring the FN10 consists of collecting and analyzing statistics and system status information. Additional statistics gathered by the FN10 are the result of user-configurable filters. See Chapter 5, FN10 Filters , for information on setting up FN10 filters. Y o[...]

  • Page 62

    Chapter 4: Monitoring and Managing Y our FN10 P age 4-2 Fast Netw ork 10 User Guide • MA C statistics • T raf fic analysis statistics • SNMP statistics Y ou can use this information to analyze your overall netw ork performance and to make configuration changes as necessary . For example, Ethernet port statistics can help you identify netw o[...]

  • Page 63

    FN10 Statistics Fast Netw ork 10 User Guide P age 4-3 4.2.1 Pseudo Filters Y ou can configure pseudo-filters to optimize your network design. Pseudo-filters generate statistics as if a filter had actually been applied without actually in v oking the filter or impacting the network. See Chapter 5, Fast Network 10 Filters for information on sett[...]

  • Page 64

    Chapter 4: Monitoring and Managing Y our FN10 P age 4-4 Fast Netw ork 10 User Guide • The number of times each filter was successfully in voked, and the source address of the packet for the last successful in vocation of each of the combination filters. 4.2.4 Ethernet P or t Statistics For each Ethernet port connection on the FN10, the follo wi[...]

  • Page 65

    FN10 Statistics Fast Netw ork 10 User Guide P age 4-5 For each of the above categories, statistics on whether a packet was forwarded or filtered are available. In addition, if a packet was filtered, the following conditions are recorded: - If the packet is local traffic - If the port is not in the Spanning T ree F orwarding state - If there is a s[...]

  • Page 66

    Chapter 4: Monitoring and Managing Y our FN10 P age 4-6 Fast Netw ork 10 User Guide • The number of recei ved pack ets with frame alignment errors. • The number of packet transmissions that were initially deferred due to the media being busy . • The number of packets not transmitted due to e xcessi ve collisions. • The number of packets tra[...]

  • Page 67

    FN10 Statistics Fast Netw ork 10 User Guide P age 4-7 4.2.6 T raffic Analysis Statistics Y ou can configure the FN10 to collect statistics on traffic between acti v e Ethernet ports, for example: • Number of packets sent from Station A to Station B. Configure pseudo source-port filter with Station A’s address as source address match and Stat[...]

  • Page 68

    Chapter 4: Monitoring and Managing Y our FN10 P age 4-8 Fast Netw ork 10 User Guide • The number of SNMP PDUs recei ved by the FN10 which had an ASN.1 parsing error while being decoded by the FN10. [ snmpInASNParseErrs ] • The total number of MIB objects which hav e been successfully retrie ved by the FN10 as a result of SNMP GetRequest or GetN[...]

  • Page 69

    Using LCM to Check FN10 Status Fast Netw ork 10 User Guide P age 4-9 • Address display • Ipaddr • Ident These LCM commands are described in the sections that follo w . 4.3.1 Displa ying Status The status command displays the status of the FN10 and automatically pages through the status of all of the Ethernet ports, pausing at each screen of i[...]

  • Page 70

    Chapter 4: Monitoring and Managing Y our FN10 P age 4-10 Fast Netw ork 10 User Guide If you do not want to view the status of each Ethernet port, use the Ctrl-C keys to return to the LCM prompt. If you do not want to view the status of port 2, use the Ctrl-C keys to return to the LCM prompt. You can view the status for multiple of ports by typing s[...]

  • Page 71

    Using LCM to Check FN10 Status Fast Netw ork 10 User Guide P age 4-11 4.3.2 Displa ying MA C Addresses The addresses display command displays all MA C addresses in the FN10 Bridge Address T able. The display includes: • The MA C address • T ype of address, including: - Dynamic (learned) - Ethernet port (for the MA C address of an Ethernet port)[...]

  • Page 72

    Chapter 4: Monitoring and Managing Y our FN10 P age 4-12 Fast Netw ork 10 User Guide T o display all MA C 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 learned static[...]

  • Page 73

    Using LCM to Check FN10 Status Fast Netw ork 10 User Guide P age 4-13 LCM would display: LCM allo ws you to display MA C addresses in tw o formats: • Little-endian (default) Little-endian is a method of storing or transmitting data in which the least significant bit of each byte is presented first. This is used in Ethernet networks. • Big-endia[...]

  • Page 74

    Chapter 4: Monitoring and Managing Y our FN10 P age 4-14 Fast Netw ork 10 User Guide 4.3.3 Displa ying Manufacturing Inf ormation The ident command identifies FN10 manufacturing information, including the part number and any po wer -up test codes and diagnostic data. T o display the manufacturing information, at the LCM prompt: 1. Type ident LCM d[...]

  • Page 75

    Using LCM to Manage the FN10 Fast Netw ork 10 User Guide P age 4-15 4.5 USING LCM TO MANAGE THE FN10 The LCM commands that enable you to manage the FN10 include: • Disable • Enable • Ipaddr • Community • Baud • Reboot These LCM commands are described in the sections that follo w . 4.5.1 Disabling a P or t There can be times when you nee[...]

  • Page 76

    Chapter 4: Monitoring and Managing Y our FN10 P age 4-16 Fast Netw ork 10 User Guide 4.5.2 Enabling a P or t When you enable an Ethernet port that has been disabled, whate ver bridging functions you had pre viously configured for that port are re-enabled. T o enable a port, or a range of ports, at the LCM prompt: 1. Type enable <PORT-RANGE> [...]

  • Page 77

    Using LCM to Manage the FN10 Fast Netw ork 10 User Guide P age 4-17 The noRIP option allo ws you to turn of f the routing information that builds the routing table. Y ou would use this option when you are connecting network de vices that do not support RIP . 4.5.3 Changing a Subnet Mask Y ou can optionally set the subnet mask for a port. A subnet m[...]

  • Page 78

    Chapter 4: Monitoring and Managing Y our FN10 P age 4-18 Fast Netw ork 10 User Guide 4.5.4 Changing a Comm unity Name A community name is similar to a password. Y ou use the same steps to assign a ne w community name or to change an existing community name. This sets the MIB v ariable sxadminAnyPass . Y ou can then enter a community name to perform[...]

  • Page 79

    Using LCM to Manage the FN10 Fast Netw ork 10 User Guide P age 4-19 T o display the current baud rate setting, at the LCM prompt: 1. Type baud LCM responds: T o 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 Y ou can en[...]

  • Page 80

    Chapter 4: Monitoring and Managing Y our FN10 P age 4-20 Fast Netw ork 10 User Guide[...]

  • Page 81

    Fast Netw ork 10 User Guide P age 5-1 CHAPTER 5 FN10 FILTERS One of the most significant features of the FN10 is its po werful user-configurable filtering capabilities. A filter is an instruction to the FN10 to screen data packets based on the criteria you define. Filtering is useful for gathering statistics, implementing security measures, an[...]

  • Page 82

    Chapter 5: FN10 Filters P age 5-2 Fast Netw ork 10 User Guide • Multicast traf fic from any station (MA C layer address). Multicast packets are those destined for more than one address. Each source address can be assigned one of the follo wing restrictions: • Filter all packets from this source address. • Filter all multicast packets from th[...]

  • Page 83

    Bridge Address T able Filters Fast Netw ork 10 User Guide P age 5-3 W ith the Bridge Address T able entry shown in T able 5-1, you can use an y of the follo wing types of Bridge Address T able filtering: • Source address • Source address multicast • Destination address 5.1.1 Sour ce Address Filter The source address filtering capability use[...]

  • Page 84

    Chapter 5: FN10 Filters P age 5-4 Fast Netw ork 10 User Guide 5.1.3 Destination Address Filter A destination address filter can be used to discard all traf fic destined to a specific MA C address. This type of filter is configured by setting a static address entry for the MA C address and specifying {null} as the port assignment. The port assi[...]

  • Page 85

    P ort Filters Fast Netw ork 10 User Guide P age 5-5 Like wise, you can assign an Exit port one of the follo wing restrictions: • Only allo w a certain number of multicast packets e v ery “n” seconds and then stop transmitting. • Filter a packet destined for this port that matches all of the fields in the Port filter . Port filters can in[...]

  • Page 86

    Chapter 5: FN10 Filters P age 5-6 Fast Netw ork 10 User Guide For the fields defined as T rue , False , or Not A pplicable ( NA ) in the follo wing sections: • T rue – Means all traffic that matches the field will be filtered. • F alse – Means all traf fic that does not match the field selection will be filtered (in v erse filter).[...]

  • Page 87

    P ort Filters Fast Netw ork 10 User Guide P age 5-7 For e xample, if you had the configuration sho wn belo w , the And operator assigned to Port 2 would apply to the ne xt instance of Port 2, not necessarily the next sequential filter number in the Port Filter T able index. The Port filter configuration fields are described in T able 5-2. T ab[...]

  • Page 88

    Chapter 5: FN10 Filters P age 5-8 Fast Netw ork 10 User Guide Source Range Star t The star ting MAC address f or the source range of MA C addresses. If you are filtering on a single source address, enter that address here . Source Range End Ending MA C address f or the source range of MA C addresses. If you are filtering on a single address, ente[...]

  • Page 89

    P ort Filters Fast Netw ork 10 User Guide P age 5-9 Field Origin Either TYPE , IP , MAC, or SR (see Field Offset description). The or igin is the field from which the offset count star ts. TYPE Field Offset The decimal offset of the por tion of the pack et to be e xamined. If the origin is TYPE , the field offset value is relative to the end of t[...]

  • Page 90

    Chapter 5: FN10 Filters P age 5-10 Fast Netw ork 10 User Guide When adding or modifying a filter , you must enter both a Sour ce Range Start v alue and a Sour ce Range End v alue. F or example: Source Range: [NA] (InRange/OutRange/NA)> inrange Source Range Start: [00:00:00:00:00:00] > 08:00:20:00:00:00 Source Range End: [00:00:00:00:00:00] &[...]

  • Page 91

    Using Filters f or Security Purposes Fast Netw ork 10 User Guide P age 5-11 Figure 5-1 Using Filters to Restrict Access to an Adjoining Network Segment FN10 Engineering Subnet LAN 2 Accounting Subnet LAN 3 Manufacturing Subnet LAN 1 Concentrator Concentrator[...]

  • Page 92

    Chapter 5: FN10 Filters P age 5-12 Fast Netw ork 10 User Guide The company w ants to allow Engineering and Accounting workstations to access resources on the Manufacturing subnet ( LAN 1 ), b ut wants to pre vent users on the Engineering subnet ( LAN 2 ) from accessing resources on the Accounting subnet ( LAN 3 ). Therefore, the objecti ve is to se[...]

  • Page 93

    Using Filters f or Security Purposes Fast Netw ork 10 User Guide P age 5-13 Example 2: Bloc king Access to Specific Stations In this example, a compan y uses a FN10 to connect two LANs (see Figure 5-2). Three w orkstations on LAN 2 (the Accounting Subnet) contain sensiti ve data (w orkstations F , G, and H). The company w ants to pre vent users on[...]

  • Page 94

    Chapter 5: FN10 Filters P age 5-14 Fast Netw ork 10 User Guide This information is used to configure the filter as follo ws: • Filter identifier – port number of the port attached to LAN 2 as a destination. • Filter fields – destination address F-H (range, match) source LAN = 1 (match). Note that a match flag is specified for both fi[...]

  • Page 95

    Using Filters f or Security Purposes Fast Netw ork 10 User Guide P age 5-15 Example 3: Restricting Access to A uthorized Users The example sho wn in Figure 5-3 is very similar to the pre vious e xample. The dif ference is that access to workstations F , G, and H will not be denied to all LAN 1 users. Instead, only authorized users on LAN 1 will be [...]

  • Page 96

    Chapter 5: FN10 Filters P age 5-16 Fast Netw ork 10 User Guide Note that the FN10 is not storing information designed to identify restricted de vices or authorized or unauthorized users. Instead, it is using address information (which it does store) to act on filters that hav e been configured to meet the desired objecti ve: Restrict access to ce[...]

  • Page 97

    Using Filters to Enhance Netw ork P erf ormance Fast Netw ork 10 User Guide P age 5-17 Example 4: Using a Fire wall Filter to Control Multicasts T o optimize network performance, you can configure filters to reduce multicasts (packets broadcast to multiple destinations). In addition, you can pre vent multicasts pack ets of a particular protocol t[...]

  • Page 98

    Chapter 5: FN10 Filters P age 5-18 Fast Netw ork 10 User Guide This filter is configured as follo ws: • Filter identifier – port number of the port attached to LAN 2 as a destination (i.e., exit) • Filter identifier – port number of the port attached to LAN 3 as a destination (i.e., exit) • Filter fields – protocol type = AppleT al[...]

  • Page 99

    Configuring a P ort Filter Fast Netw ork 10 User Guide P age 5-19 5.5 CONFIGURING A P ORT FILTER T o configure a Port filter , use the Local Console Manager (LCM). The LCM prompts you through the fields for each Port filter you want to configure. If you are adding a Port filter to be used in conjunction with another Port filter , and the ?[...]

  • Page 100

    Chapter 5: FN10 Filters P age 5-20 Fast Netw ork 10 User Guide Complete the follo wing steps to configure a Port filter . T o accept a default v alue, press the Enter ke y . At the LCM prompt: 1. Type filters add 2. Enter the port number. 1 is the default. If the filter is for port 1, you do not need to enter anything; if the filter is for anothe[...]

  • Page 101

    Configuring a P ort Filter Fast Netw ork 10 User Guide P age 5-21 9. Select whether the filter will use a destination range of MAC addresses. NA is the default; meaning the filter will not use a destination range. You do not need to enter anything unless you are using a destination range. (If you are not using a destination range, go to Step 12. I[...]

  • Page 102

    Chapter 5: FN10 Filters P age 5-22 Fast Netw ork 10 User Guide 18. Enter the field value. 19. Enter the field mask. 20. Select the operator. Or is the default. You do not need to enter anything if the filter will use the Or operator. If you want the filter to use the And operator, type And . 21. Enter the filter number. One ( 1 ) is the default. Yo[...]

  • Page 103

    Filtering and P erformance Considerations Fast Netw ork 10 User Guide P age 5-23 5.5.2 Deleting a P or t Filter T o delete a Port filter , at the LCM prompt: 1. Type filters delete LCM prompts you for the filter index. 2. Enter the filter number. LCM responds filter deleted. 5.6 FILTERING AND PERF ORMANCE CONSIDERATIONS When implementing filters,[...]

  • Page 104

    Chapter 5: FN10 Filters P age 5-24 Fast Netw ork 10 User Guide[...]

  • Page 105

    Fast Netw ork 10 User Guide P age 6-1 CHAPTER 6 FN10 DIAGNOSTICS AND T ROUBLESHOOTING The FN10 incorporates se v eral b uilt-in diagnostic and testing capabilities which are con v enient to use and cause minimal or no disruption to the operational network. These capabilities are ef fecti ve for isolating problems within the FN10 unit. Built-in diag[...]

  • Page 106

    Chapter 6: FN10 Diagnostics and T roubleshooting P age 6-2 Fast Netw ork 10 User Guide 6.1.1 P ower-up LED Sequence When you po wer-up the FN10, the follo wing occurs: 1. All LEDs, except for the Port Link LEDs, turn on for one second. 2. The Power (Pwr) LED remains on. 3. The Ready LED starts flashing. 4. After several seconds, the Port Link LEDs [...]

  • Page 107

    Responses to Failures at P ower-up Fast Netw ork 10 User Guide P age 6-3 6.1.3 Software Chec ksum Comparison When the FN10 reboots, its operational software is v erified by a checksum comparison before it is loaded. If the software fails the checksum test due to an interrupted ne w software distrib ution procedure, the FN10 will automatically use [...]

  • Page 108

    Chapter 6: FN10 Diagnostics and T roubleshooting P age 6-4 Fast Netw ork 10 User Guide 6.3.1 Loopbac k T ests Built-in local and remote loopback tests can be used to test indi vidual ports while the FN10 is operational. When in local loopback mode, a port is disconnected from the network. The FN10 generates loopback packets for the port, and the po[...]

  • Page 109

    Status and Activity Indicators Fast Netw ork 10 User Guide P age 6-5 Figure 6-1 FN10 Front P anel LEDs X2 X 3X 4X 5X 6X 7X 8X 9X 10X 11 X 12X 13X 14X 15X 16X 17X 18X 19X 20X 21X 22X 23X 24X 13 14 15 16 17 18 19 20 21 22 23 24 AUI 1 Link Link 23 1 45 6 7 8 91 0 1 1 1 2 A B Usr Segment Status Select TX RX Act Col Reset Ready NMS Port Pwr FN10-24 P or[...]

  • Page 110

    Chapter 6: FN10 Diagnostics and T roubleshooting P age 6-6 Fast Netw ork 10 User Guide T able 6-2 describes the FN10 buttons. T able 6-1 Meaning of FN10 LEDs LED Meaning Link (upper lev el of port LEDs) On – Indicates the link is good. Off – Indicates there is no link. Status (lower lev el of port LEDs) On/Blinking – Indicates you are monitor[...]

  • Page 111

    T roubleshooting Fast Netw ork 10 User Guide P age 6-7 6.5 T ROUB LESHOOTING This section lists se veral situations that could happen while using the FN10, and suggests appropriate action. Because e very situation is potentially unique, the correcti ve actions suggested here should be considered as guidelines only . 6.5.1 FN10 Does Not P ower Up If[...]

  • Page 112

    Chapter 6: FN10 Diagnostics and T roubleshooting P age 6-8 Fast Netw ork 10 User Guide 6.5.3 FN10 Has Rebooted • Use the LCM ident command to check the FN10 diagnostic codes, and call your authorized Cabletron Systems representati ve. 6.5.4 FN10 Does Not Respond to NMS • Check the port status using LCM. • Check to see if the Spanning T ree to[...]

  • Page 113

    Fast Netw ork 10 User Guide P age A-1 APPENDIX A T ECHNICAL SPECIFICATIONS A.1 FN10 SPECIFICATIONS Physical Height 1.75 in (4.45 cm) (1 u ) W idth 17 in (43.18 cm) Depth 15.75 in (40 cm) W eight 9 lb (4.1 kg) Installation options T abletop or rack-mount Electrical Input voltage Auto-ranging from 100-120, 200-240 V ac Frequency 50/60 Hz A C po wer c[...]

  • Page 114

    Appendix A: T echnical Specifications P age A-2 Fast Netw ork 10 User Guide Bridging T echnologies • IEEE 802.1 Part D • IEEE802.2 (Logical Link Control) • IEEE 802.3 (CSMA/CD, 10B ASE-T) • T ransparent Bridging with Spanning T ree • Ethernet V ersion 2 • EIA RS232C (DTE-to-DCE Interface Specification) • EIA RS-310-C (Rack-mount Spe[...]

  • Page 115

    Serial Cable Pin Assignments Fast Netw ork 10 User Guide P age A-3 A.2 SERIAL CABLE PIN ASSIGNMENTS For a PC running a Windo ws terminal connected to the RS232C Netw ork Management Port on the front panel of the FN10, the follo wing serial cable pin assignments are required to manage the FN10 using the Local Console Manager (LCM). A.3 10B ASE-T PIN[...]

  • Page 116

    Appendix A: T echnical Specifications P age A-4 Fast Netw ork 10 User Guide A.4 STRAIGHT-THROUGH WIRING If the twisted-pair link segment is to join tw o ports on a switch, and only one of the ports has an internal crossov er , the tw o pairs of wires must be straight-through, as sho wn in T able A-2. a. The “+” and “-” signs are used to re[...]

  • Page 117

    Crosso ver Wiring Fast Netw ork 10 User Guide P age A-5 A.5 CROSSO VER WIRING T wo FN10s can communicate only if the transmitter on one unit is connected to the recei ver on the other unit. This re versal, or crosso v er function, can be implemented either in the wiring or in the de vice itself. When connecting FN10s, a crossov er must be implement[...]

  • Page 118

    Appendix A: T echnical Specifications P age A-6 Fast Netw ork 10 User Guide[...]

  • Page 119

    Appendix B: Glossary Fast Netw ork 10 User Guide P age B-1 APPENDIX B GLOSSARY address A set of characters that uniquely identifies a station, peripheral de vice, node, or other unit in a network. address table A database of de vice addresses and their associated ports maintained by a switch or bridge for use in making data packet forwarding and ?[...]

  • Page 120

    Appendix B: Glossary P age B-2 Fast Netw ork 10 User Guide A UI (attachment unit interface) A standard connector type used for Ethernet connections. backbone The major , central transmission path for a netw ork. A backbone usually handles high-volume, high-density traf fic. T ypically a backbone connects v arious LANs into an integrated netw ork. [...]

  • Page 121

    Appendix B: Glossary Fast Netw ork 10 User Guide P age B-3 concentrator A de vice that provides attachment points for stations that are not connected to the FN10. The concentrator is connected directly to the network; the stations connect to the concentrator . congestion A condition where a portion of the network is o verloaded with more data than [...]

  • Page 122

    Appendix B: Glossary P age B-4 Fast Netw ork 10 User Guide EIA (Electronic Industries Association) Organization that sets standards for electrical interf aces (connectors). encapsulation A method for moving messages across netw orks that use dif ferent types of protocols. The message is encapsulated (rather than translated), so it can mov e across [...]

  • Page 123

    Appendix B: Glossary Fast Netw ork 10 User Guide P age B-5 full wire speed Refers to packet forwarding at the maximum rate at which data can be transmitted on a gi ven LAN. ICMP (Internet control messa ge protocol) An auxiliary protocol of IP used to con v ey advice and error messages about e vents in the IP layer . IEEE (Institute of Electrical an[...]

  • Page 124

    Appendix B: Glossary P age B-6 Fast Netw ork 10 User Guide internetworking The linking of one or more networks to facilitate communication across networks. interoperability The ability of equipment from multiple vendors to e xchange information using standardized protocols. IP (Internet protocol) IP is the basic datagram protocol used at the networ[...]

  • Page 125

    Appendix B: Glossary Fast Netw ork 10 User Guide P age B-7 local traffic T raf fic within a gi v en network se gment. MA C (media access contr ol) The data link layer sublayer responsible for scheduling, transmitting, and recei ving data on a shared medium local area network. mask Specified a subset of a larger set of data to be included for com[...]

  • Page 126

    Appendix B: Glossary P age B-8 Fast Netw ork 10 User Guide packet A group of bits including data and control elements arranged in a specific format that are transmitted and switched as a composite whole. Control elements include a source address, destination address, frame control and status indicators, and a Frame Check Sequence (FCS). PDU (proto[...]

  • Page 127

    Appendix B: Glossary Fast Netw ork 10 User Guide P age B-9 RARP (rever se address resolution pr otocol) A protocol that binds MA C addresses to specific IP addresses. RISC (Reduced Instruction Set Computing) A data processing technology in which functions are performed using the least possible number of instructions to yield very f ast processing.[...]

  • Page 128

    Appendix B: Glossary P age B-10 Fast Netw ork 10 User Guide synchr onous transmission A transmission technique in which an uninterrupted block of data is transmitted, using no redundant information such as stop and start bits to identify the beginning and end of a unit of data. TCP/IP (transmission control pr otocol/Internet pr otocol) Internetwork[...]

  • Page 129

    Fast Netw ork 10 User Guide Index-1 INDEX Numerics 10BASE-T pin assignments A-3 5 - 4 - 3 rule A-5 802.1D Spanning Tree 3-9 A adding filters 5-20 IP addresses 3-3 address table dynamic entry 1-10 size A-2 address table filters about 5-2 destination address 5-4 source address 5-3 source address multicast 5-3 addresses adding IP 3-3 deleting IP 3-4 d[...]

  • Page 130

    Index Index-2 Fast Netw ork 10 User Guide overview 6-1 power-up 2-6, 6-1 disabling bridging functions 3-6 ports 4-15 trunking 3-9 displaying baud rate 4-19 bridge functions 3-6 FN10 status 4-9 IP addresses 3-4, 4-13, 4-17 MAC addresses 4-12 manufacturing information 4-14 Document Conventions 1-3 dynamic entry Bridge Address Table 1-9 E enabling bri[...]

  • Page 131

    Index Fast Netw ork 10 User Guide Index-3 bridge 3-5 community 3-15, 4-18 disable 4-15 enable 4-16 erase 3-2 exit 1-19 ident 4-14 ipaddr 3-4, 4-13 logout 1-19 reboot 4-19 status 4-9 trunk 3-9 LED sequence power-up 6-2 linking filters 5-6 little-endian 4-13 LLC Type 1 test packets 6-4 Local Console Manager. See LCM 1-15, 4-1 local traffic defined 1-[...]

  • Page 132

    Index Index-4 Fast Netw ork 10 User Guide SNMP statistics 4-2, 4-7 source range 5-7 Spanning Tree algorithm 1-8 specifications electrical A-1 physical A-1 static entry Bridge Address Table 1-10 statistics Ethernet port 4-4 gathering 4-3 MAC 4-6 overview 4-2 SNMP 4-7 system 4-3 traffic analysis 4-7 status, displaying 4-9 straight-through wiring A-4 [...]