Page 1: User Guide
FAST NETWORK 10 FN10-12 AUI 1 FN10-24 AUI 1 USER GUIDE Link 7 8 9 10 11 12 4 5 6 13 14 15 16 17 18 19 20 21 22 23 24 Link Link 4 5 6 7 8 9 10 11 12...
Page 3 All Rights Reserved Printed in the United States of America Order Number: 9031805-01 May 1996 All other product names mentioned in this manual may be trademarks or registered trademarks of their respective companies. Printed on Recycled Paper Fast Network 10 User Guide...
Page 4: Fcc Notice
Information Technology Equipment (VCCI) aimed at preventing radio interference in commercial and/or industrial areas. Consequently, when used in a residential area or in an adjacent area thereto, radio interference may be caused to radios and TV receivers, etc. Read the instructions for correct handling. Fast Network 10 User Guide...
Page 5 DAMAGES. BECAUSE SOME STATES DO NOT ALLOW THE EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES, OR ON THE DURATION OR LIMITATION OF IMPLIED WARRANTIES, IN SOME INSTANCES THE ABOVE LIMITATIONS AND EXCLUSIONS MAY NOT APPLY TO YOU. Fast Network 10 User Guide...
Page 6: United States Government Restricted Rights
Government is subject to restrictions as set forth in subparagraph (c) (1) (ii) of the Rights in Technical Data and Computer Software clause at 252.227-7013. Cabletron Systems, Inc., 35 Industrial Way, Rochester, New Hampshire 03867-0505. Fast Network 10 User Guide...
Page 7: Table Of Contents
CHAPTER 1 INTRODUCTION About This Manual... 1-1 Getting Help... 1-2 Document Conventions ... 1-3 Related Documentation ... 1-4 Overview... 1-4 1.5.1 FN10 Architecture ... 1-6 1.5.1.1 1.5.1.2 1.5.1.3 1.5.2 FN10 Bridge Address Table ... 1-9 1.5.3 FN10 Filtering ... 1-10 1.5.4 FN10 Sample Applications ...
Page 8 Contents CHAPTER 3 CONFIGURING YOUR FN10 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 Subnet Mask ...3-4 Enabling Bridging ...3-5 Disabling Bridging ...3-6 Displaying Bridging Functions...3-6 Enabling Trunking ...3-7 Disabling Trunking ...3-9 Displaying Trunking Status ...3-10 Defining and Deleting Workgroups ...3-12 Assigning a Community Name...3-15...
Page 9 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 4.5.3 Changing a Subnet Mask ... 4-17 4.5.4 Changing a Community Name... 4-18 4.5.5 Setting the Baud Rate... 4-18 4.5.6 Setting a Reboot Time ...
Page 10 Contents APPENDIX A TECHNICAL SPECIFICATIONS FN10 Specifications ... A-1 Serial Cable Pin Assignments... A-3 10BASE-T Pin Assignments ... A-3 Straight-through Wiring ... A-4 Crossover Wiring ... A-5 5 - 4 - 3 Rule ... A-5 APPENDIX B GLOSSARY INDEX viii FastNET 10 User Guide...
Page 11: Chapter 1 Introduction
1.1 ABOUT THIS MANUAL This manual is for system administrators responsible for conﬁguring, monitoring, and maintaining the Fast Network 10 (FN10). You should have a familiarity with networking concepts and principles. In addition, a basic understanding of SNMP is helpful.
Page 12: Getting Help
By phone By CompuServe By Internet mail By FTP Login Password Page 1-2 (603) 332-9400 Monday-Friday; 8 GO CTRON from any ! prompt support@ctron.com ctron.com (134.141.197.25) anonymous your email address Fast Network 10 User Guide . – 8 . Eastern Time...
Page 13: Document Conventions
Caution symbol. Contains information essential to avoid damage to the equipment. CAUT ION Warning symbol. Warns against an action that could result in equipment damage, personal injury or death. Fast Network 10 User Guide ipaddr <port #> <IP address> Document Conventions command: Page 1-3...
Page 14: Related Documentation
Chapter 1: Introduction 1.4 RELATED DOCUMENTATION The following documentation may assist the user in using this product: • Fast Network 10 MIB Reference Guide – contains enterprise MIB information. • Interconnections, Bridges and Routers, Radia Perlman, Addison Wesley © 1992.
Page 15 Allows you to deﬁne virtual workgroups to optimize network trafﬁc. • Filters and forwards received Ethernet packets based on Network Management System (NMS) conﬁgurable parameters. • Supports 48-bit IEEE 802 MAC addressing. Fast Network 10 User Guide Link 4 5 6 13 14 15 16 17 18 Link Link...
Page 16: Fn10 Architecture
FN10. The Open System Interconnection (OSI) Reference Model, developed by the International Standards Organization (ISO), identiﬁes the levels of functionality inherent in each of its seven layers. The FN10 operates at the Page 1-6 Fast Network 10 User Guide...
Page 17: Store And Forward Switching
The FN10 checks all incoming packets for their destination address against the Bridge Address Table. If a packet’s destination address is not on the same network segment as the originating packet, the FN10 Fast Network 10 User Guide FN10 operates at Layer 2 Overview...
Page 18: Spanning Tree Algorithm
When there are multiple FN10s connecting LANs in a loop, the Spanning Tree algorithm determines which FN10 should forward packets to the LAN. If there is a cable break or a port failure, the network topology is Page 1-8 FN10 FastNet 10 Fast Network 10 User Guide LAN 2...
Page 19: Fn10 Bridge Address Table
However, you can change an address from dynamic to static if you do not want the entry in the Bridge Address Table to get discarded. Each dynamic entry includes: • An Ethernet MAC address Fast Network 10 User Guide Page 1-9...
Page 20: Fn10 Filtering
Just as a six lane highway allows you to travel much faster than a single lane highway, a network backbone creates high-speed connections for your network. In general, a network backbone allows you to distribute access to important network resources such as ﬁle or print servers. Page 1-10 Fast Network 10 User Guide...
Page 21: Fn10 Trunking
FN10 ports to increase the bandwidth. Up to 80 Mbps Bandwidth Figure 1-5 FN10 Application #1 Figure 1-6 illustrates how the FN10 can be used in a backbone network conﬁguration. Fast Network 10 User Guide 10 Mbps 10 Mbps Trunk Lines 10 Mbps 10 Mbps...
Page 22: Fn10'S Fast Ethernet Option
100 Mbps rate. Figure 1-7 illustrates connecting two FN10 Fast Ethernet ports to increase the bandwidth to 100 Mbps. Page 1-12 Servers 10BASE-T Cables 10BASE-T Cables Fast Network 10 User Guide Network Management Station FN10 Trunk Lines FN10...
Page 23 Figure 1-8 illustrates how the FN10 can be used in a backbone network conﬁguration using increased bandwidth of the optional Fast Ethernet conﬁguration. Fast Ethernet Switching WAN Router Figure 1-8 FN10 Application #4 Fast Network 10 User Guide LAN segment FN10 / FE 100 Mbps bandwidth (Fast Ethernet) FN10 / FE...
Page 24: Virtual Workgroups
Each host on segments A and B is limited to sharing a network bandwidth of 10 Mbps. Figure 1-10 shows two Ethernet segments that take advantage of the virtual workgroup feature of the FN10 and the increased bandwidth applied to each A and B host. Page 1-14 Fast Network 10 User Guide...
Page 25: Local Console Manager
You can also use a Cabletron Systems Network Management System, or a standard SNMP-based Network Management System, to manage the FN10. For a list of available FN10 network management tools, see Section 4-1, FN10 Management Tools. Fast Network 10 User Guide Router to Help Optimize Bandwidth Local Console Manager...
Page 26: Command Syntax Conventions
MAC addresses are displayed in little-endian Ethernet bit order, with each octet separated by a colon. For example: FN10 >address 00:40:27:04:1a:0f Page 1-16 are ports , and ; and Fast Network 10 User Guide is port are ports 3-5,7 3,4,5,...
Page 27: Basic Lcm Commands
Connecting the Local Console Manager, for instructions. When you want to use LCM, begin by pressing the Enter key several times to get the LCM prompt ( Fast Network 10 User Guide ipaddr [PORT-NUMBER] [IP ADDRESS] , you must select one of the displayed options. For FN10 >...
Page 28: Help
Fast Ethernet speed to reboot the unit after seconds to display arp table information to display routing table information to display the most recent SNMP traps Fast Network 10 User Guide command is help to set or display workgroups...
Page 29: Exit
The unit’s spanning tree forward delay times has changed. Trap 3 0:00:02 port 1 The current functional state of the port has changed. FN10 > Fast Network 10 User Guide Local Console Manager command is functionally equivalent to exit logout command.)
Page 30 Chapter 1: Introduction Page 1-20 Fast Network 10 User Guide...
Page 31: Unpacking And Installing Your Fn10
• Four stick-on feet (for desktop installation) • Documentation – In addition to this manual, the Fast Network 10 Quick Setup card, the Fast Network 10 Local Console Manager (LCM) Commands Reference Card, the Fast Network 10 MIB Reference Guide, and Release Notes are also included.
Page 32 19 20 21 22 23 24 Segment Status Select Reset Ready 7 8 9 10 11 12 NMS Port Port B Port A Ready Link Status Link Status RX TX RX TX Status Link Port B Port A Ready Fast Network 10 User Guide...
Page 33 If the Ready LED continues to blink after power-up diagnostics are complete, it could mean the FN10 is overheating. CAUT ION Fast Network 10 User Guide Meaning On – Indicates the link is good. Off – Indicates there is no link.
Page 34: Installing The Fn10
Figure 2-3. In addition, make sure the unit is within reach of the network cables to which it will be connected. Figure 2-3 Installing the Stick-on Feet Page 2-4 Fast Network 10 User Guide...
Page 35 The FN10 can be rack-mounted in a standard 19-inch equipment cabinet. To mount the FN10 in a rack assembly, apply the following steps: 1. Attach the rack-mount brackets to either side of the FN10 chassis. Fast Network 10 User Guide Discussion Since the temperature within a rack assembly may...
Page 36: Checking The Power-Up Diagnostics Sequence
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 turn on briefly. Page 2-6 Rack Fast Network 10 User Guide Fasteners...
Page 37: Connecting The Local Console Manager
Refer to Section 1.6, Local Console Manager for a general overview of LCM and the command syntax. LCM commands for conﬁguring, monitoring, and managing the FN10 are provided in the chapters dealing with those topics. Fast Network 10 User Guide Connecting the Local Console Manager prompt. FN10 >...
Page 38: Connecting The Fn10 To The Network
1. Connect one end of the 10BASE-T (or optional 100 BASE-TX) cable to the device’s network interface card. 2. Connect the other end of the 10BASE-T cable to a numbered port on the FN10. Page 2-8 Fast Network 10 User Guide...
Page 39: Connecting The Aui Interface
1. Disconnect the FN10 from the network and remove the power cord from the rear. 2. Loosen the 2 spring-loaded fastening screws securing the blank backplate and remove the backplate from the FN10. Refer to Figure 2-5. Fast Network 10 User Guide Page 2-9...
Page 40 FN10 to allow the connector to snap firmly into place. 5. Tighten the spring-loaded fastening screws to secure the FE module. The physical installation of the FE module assembly is complete. Page 2-10 Fast Network 10 User Guide...
Page 41 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. Fast Network 10 User Guide Page 2-11...
Page 42 Chapter 2: Unpacking and Installing Your FN10 Page 2-12 Fast Network 10 User Guide...
Page 43: Configuring Your Fn10
Any SNMP-based NMS. Conﬁguration parameters are stored in an SNMP standard Management Information Base (MIB). All FN10 MIB variables are listed and described in the Fast Network 10 MIB Reference Guide. There are some conﬁguration options that cannot be NOTE conﬁgured using LCM commands.
Page 44 You can use the LCM NOTE conﬁguration information on the next system reset. If you are using a network management tool other than LCM, refer to its accompanying documentation. Page 3-2 command to erase all erase Fast Network 10 User Guide...
Page 45: Assigning Ip Addresses
Entering erase NOTE IP address on Port 1 to rebooted. Fast Network 10 User Guide would set the IP address of to erase the current FN10 conﬁguration sets the (default) when the FN10 is 192.0.2.1 Assigning IP Addresses...
Page 46: Displaying Ip Addresses
6 to 255.255.240.0. LCM responds by redisplaying the current address table. Page 3-4 Address Mask 255.255.255.0 00:40:27:00:06:1f 255.0.0.0 00:40:27:00:06:c3 255.255.255.0 00:40:27:00:06:3e 255.0.0.0 00:40:27:00:03:7a 255.0.0.0 00:40:27:00:05:c7 255.255.255.0 00:40:27:00:04:4a 255.255.255.0 00:40:27:00:06:9e 255.255.255.0 00:40:27:00:04:b4 Fast Network 10 User Guide MAC Address would set the...
Page 47: Enabling Bridging
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 LCM responds: Port 2 bridging: Transparent Bridging Fast Network 10 User Guide enabled) BPDU would enable bridging on port 2. Enabling Bridging Page 3-5...
Page 48: Disabling Bridging
For example ports 2, 3, and 4. Page 3-6 would disable bridging on port 2. would display the bridging status bridge bridge [PORT-RANGE] would display bridging functions for bridge 2-4 Fast Network 10 User Guide to look at a specific range...
Page 49: Enabling Trunking
The connections must be point-to-point. That is, there cannot be any other devices on the Ethernet segments. 10BASE-T Crossover Cables (providing 40 Mbps of bandwidth) Fast Network 10 User Guide Figure 3-1 Trunk Connections Enabling Trunking FastNET 10 FastNET 10...
Page 50 A to B with one Trunk Group, and connect B to C with a second Trunk Group. Trunk Group #1 Trunk Group #2 Page 3-8 FastNET 10 A FastNET 10 B FastNET 10 C Figure 3-2 Trunk Groups Fast Network 10 User Guide...
Page 51: Disabling Trunking
However, both ends of the FN10-to-FN10 connections must have trunking turned on for the ports that are being used for the connections. 3.6 DISABLING TRUNKING To turn off trunking, at the LCM prompt: Fast Network 10 User Guide Disabling Trunking Page 3-9...
Page 52: Displaying Trunking Status
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. Page 3-10 Fast Network 10 User Guide...
Page 53 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. Fast Network 10 User Guide Displaying Trunking Status Transparent Bridging Enabled, Rip listening...
Page 54: Defining And Deleting Workgroups
A and B. Workgroup A uses ports 3 through 5, and workgroup B uses ports 7 and 11. Port 16 connects a segment that contains both workgroup A and workgroup B hosts. Router FN10 Workgroup A Workgroup B Figure 3-3 Deﬁning Virtual Workgroups Page 3-12 Fast Network 10 User Guide...
Page 55 1. To create workgroup A: FN10 > workgroup A 3-5,13,16 ip 198.113.120.0 LCM responds with the following display: Name: a Ports: 3, 4, 5, 13, 16 Info: IP 198.113.120.0 255.255.255.0 Fast Network 10 User Guide Deﬁning and Deleting Workgroups Page 3-13...
Page 56 1. Type workgroup 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 Page 3-14 Fast Network 10 User Guide...
Page 57: Assigning A Community Name
3. Enter the new community name. LCM prompts you to verify the new community name by retyping it. 4. Retype the new community name. Fast Network 10 User Guide Assigning a Community Name . You can then enter a sxadminAnyPass sets.
Page 58: Configuring Multicast Storm Protection
– specifies the period of time that the maximum sxiTxStormTime number of multicasts can be broadcasted. Refer to the Fast Network 10 MIB Reference Guide for a complete listing and description of MIB variables. Page 3-16 Fast Network 10 User Guide...
Page 59: Modifying Mib Variables
NMS. This section provides several common MIB variables you may want to change. Refer to the Fast Network 10 MIB Reference Guide for a complete listing and description of MIB variables. Each variable is ﬁrst described in words, and is then identiﬁed in MIB...
Page 60: Authentication Password
Table supports 8,192 addresses. Static addresses (those added by the user) are not aged. Page 3-18 ) must be set to the value of sxadminAnyPass ) must be set to the value of sxadminGetPass dot1dTpAgingTime Fast Network 10 User Guide parameter, and deletes...
Page 61: Monitoring And Managing Your Fn10
(LAN) you are connecting, as well as the network trafﬁc ﬂow to and from each Ethernet port on the FN10. FN10 statistics are divided into ﬁve groups: • System statistics • Ethernet port statistics Fast Network 10 User Guide CHAPTER 4 YOUR FN10 Page 4-1...
Page 62 In addition, Ethernet port statistics can help you identify a network device that is the source of numerous multicast packets due to a possible malfunction. Page 4-2 Fast Network 10 User Guide...
Page 63: Pseudo Filters
Pseudo-ﬁlters generate statistics as if a ﬁlter had actually been applied without actually invoking the ﬁlter or impacting the network. See Chapter 5, Fast Network 10 Filters for information on setting up FN10 ﬁlters. 4.2.2 Gathering Statistics For purposes of network management, managed objects, such as the FN10, must be identiﬁed.
Page 64: Ethernet Port Statistics
The packets are broken down into the following categories by type of destination address: Known individual destination address Unknown individual destination address Multicast address (other than broadcast) Broadcast address Individual node management packets Multicast node management packets (other than broadcast) Broadcast node management packets Page 4-4 Fast Network 10 User Guide...
Page 65 Not sent due to congestion Not sent due to multicast storm protection • The number of received Frame Check Sequence (FCS) errors detected. • The number of missed packets due to receive queue overﬂows. Fast Network 10 User Guide FN10 Statistics Page 4-5...
Page 66: Mac Statistics
The receive statistics for the entries in the FN10 Bridging NOTE Address Table are only updated when packets are received on Ethernet ports that are in Spanning Tree Forwarding or Learning state, and if Learning has been enabled on the Ethernet port. Page 4-6 Fast Network 10 User Guide...
Page 67: Traffic Analysis Statistics
The number of SNMP PDUs received by the FN10 which had an unrecognized SNMP community name. [ • The number of SNMP PDUs received by the FN10 which had an authentication failure. [ Fast Network 10 User Guide snmpInBadVersions snmpInBadCommunityNames snmpInBadCommunityUses FN10 Statistics...
Page 68: Using Lcm To Check Fn10 Status
4.3 USING LCM TO CHECK FN10 STATUS The LCM commands that enable you to quickly check on the status of the FN10 include: • Status Page 4-8 ErrorStatus snmpOutTooBigs ErrorStatus snmpOutNoSuchNames ErrorStatus snmpOutBadValues ErrorStatus snmpOutGenErrs Fast Network 10 User Guide snmpInGetRequests snmpInGetNexts snmpInSetRequests...
Page 69: Displaying Status
Ethernet ports by typing number. At the LCM prompt: 1. Type status LCM displays the following type of information. Fast Network 10 User Guide Using LCM to Check FN10 Status command to display status for status and specifying a port status...
Page 70 You can view the status for multiple of ports by typing indicating the range of port numbers, for example Page 4-10 TX Packets Collisions 1676 Transparent Bridging Enabled, Rip listening Forwarding 1693 1693 Fast Network 10 User Guide Erred Packets 1676 status status 2-6...
Page 71: Displaying Mac Addresses
Time since a packet was last received from that address • Time since that address was created (e.g., a static address created by an NMS) Fast Network 10 User Guide Using LCM to Check FN10 Status command displays all MAC addresses in the Page 4-11...
Page 72 For example, to see all addresses that begin with 02:04:06, you would enter: addresses display 02:04:06:00:00:00 ff:ff:ff:00:00:00 Page 4-12 Port Age(secs) , only the learned static and other addresses are addresses display 02:04:06:03:2a:43 Port Age(secs) Fast Network 10 User Guide Frames-From Frames-To 17110 Frames-From Frames-To 1181...
Page 73: Ethernet Networks
LCM displays the current IP address table, for example. Port IP Address 192.138.217.1 0.0.0.0 192.138.217.10 0.0.0.0 0.0.0.0 192.138.217.20 192.138.217.50 192.138.217.30 Fast Network 10 User Guide Using LCM to Check FN10 Status Type Port Age(secs) Address Mask 255.255.255.0 255.0.0.0 255.255.255.0 255.0.0.0 255.0.0.0 255.255.255.0...
Page 74: Displaying Manufacturing Information
You can use the Local Console Manager (LCM), any of the Cabletron Systems NMSs, or a standard SNMP-based NMS to manage the FN10. Refer to Section 4.1. Page 4-14 X70002e4-0006891 00000000 00000000 00000000 00000000 00000000 00000000 fffffffc fffffffc 00000000 ff006000 Fast Network 10 User Guide...
Page 75: Using Lcm To Manage The Fn10
Once an Ethernet port is disabled, it will be disabled until you enable it again. Resetting the FN10 will not enable a port that has been disabled. Fast Network 10 User Guide Using LCM to Manage the FN10 would disable ports 7, 8, and 9.
Page 76: Enabling A Port
RIP enables you to use an NMS to remotely manage the FN10 through a router. Page 4-16 would enable ports 7, 8, and 9. for an already enabled FN10 Fast Network 10 User Guide...
Page 77: Changing A Subnet Mask
IP address for that port. Make sure you enter the IP address for the port correctly; whatever you enter becomes the IP address. To assign a new IP address, refer to Section 3.1. Fast Network 10 User Guide Using LCM to Manage the FN10 Address Mask 255.255.255.0 255.0.0.0...
Page 78: Changing A Community Name
The default rate is 9600. Make sure that the baud rate you set matches the baud rate NOTE setting for the terminal you are using. Page 4-18 . You can then enter a sxadminAnyPass sets. SNMP Fast Network 10 User Guide...
Page 79: Setting A Reboot Time
<time interval> For example, reboot 60 LCM responds: System will be reset in 60 seconds. Fast Network 10 User Guide Using LCM to Manage the FN10 would set the baud rate to 9600. Baud rate is 9600. Page 4-19...
Page 80 Chapter 4: Monitoring and Managing Your FN10 Page 4-20 Fast Network 10 User Guide...
Page 81: Chapter 5 Fn10 Filters
ﬁltering ﬂags assigned to a packet’s source or destination address. By assigning FN10 Bridge Address Table ﬁlter ﬂags, you can selectively ﬁlter: • Trafﬁc to and/or from any station (Media Access Control (MAC) layer address). Fast Network 10 User Guide CHAPTER 5 FN10 FILTERS Page 5-1...
Page 82 Multicast source ﬁlter instruct the FN10 to ﬁlter (ON) or not ﬁlter (OFF) multicast packets generated by speciﬁed MAC address. Page 5-2 Source ﬁlter – Indicates the ﬂags used solely for ﬁltering. They Fast Network 10 User Guide Multicast source ﬁlter...
Page 83: Source Address Filter
When this ﬂag is set to ON, all multicast packets originating from the designated MAC address are ﬁltered. This is useful for preventing broadcast trafﬁc from a particular station from being propagated to other network segments. Fast Network 10 User Guide Bridge Address Table Filters Page 5-3...
Page 84: Destination Address Filter
FN10 Bridge Address Table. • Treat all packets with identical source and destination addresses as broadcasts. • Filter all packets that match all of the ﬁelds in the Port ﬁlter. Page 5-4 as the port {null} Fast Network 10 User Guide...
Page 85: Configurable Fields
ﬁeld, that ﬁeld will not be used. The Type ﬁeld (Entry or Exit) must always be speciﬁed, since it identiﬁes which trafﬁc ﬂow the FN10 is to observe for ﬁltering. The default is Entry. Fast Network 10 User Guide Port Filters Page 5-5...
Page 86: Pseudo Filtering
Port ﬁlter processing is a one pass, sequential operation. All And/Or operators apply to the next Port ﬁlter in the Port Filter Table index that is assigned the same port number and Entry/Exit value. Page 5-6 Fast Network 10 User Guide...
Page 87 Source the source MAC address is within the range, or False – Range ﬁlter the packet if the source MAC address is outside of the range. Fast Network 10 User Guide Filter Filter Port Operator – apply the ﬁlter to all packets received –...
Page 88 ﬁlters to match conditions you specify. Page 5-8 – ﬁlter the packet if – ﬁlter the packet if – ﬁlter the packet – ﬁlter the packet if – ﬁlter the packet Fast Network 10 User Guide Default ff:ff:ff: ff: ff:ff ff:ff:ff: ff: ff:ff...
Page 89 Index with 2. Although ﬁlters are assigned to a port, ﬁlter indexes are not; they are assigned sequentially to all ﬁlters for all ports. Fast Network 10 User Guide Port Filters Default TYPE Page 5-9...
Page 90: Using Filters For Security Purposes
In this example, there are three subnets connected by a centrally located FN10 (see Figure 5-1). The subnets are referred to as Manufacturing, Engineering, and Accounting. Page 5-10 Source Range End: Fast Network 10 User Guide fields.
Page 91 Using Filters for Security Purposes Manufacturing Subnet LAN 1 FN10 Concentrator Concentrator Engineering Subnet Accounting Subnet LAN 2 LAN 3 Figure 5-1 Using Filters to Restrict Access to an Adjoining Network Segment Fast Network 10 User Guide Page 5-11...
Page 92 However, before the ﬁlters were implemented, they were able to freely communicate. The ﬁlters were used to logically segment the network in such a way that LANs 2 and 3 cannot communicate. Page 5-12 Fast Network 10 User Guide...
Page 93 • Trafﬁc from LAN 1 • Trafﬁc destined for addresses F, G, and H on LAN 2 • Match ﬂags for both components Fast Network 10 User Guide Using Filters for Security Purposes FN10 Concentrator Accounting Subnet LAN 2 Computers that cannot...
Page 94 LAN 2 from accessing these workstations. The reason is that workstation E is on the same LAN as the sensitive-data computers, and therefore does not need to use the FN10 to access them. Page 5-14 Fast Network 10 User Guide...
Page 95 All packets destined for the restricted workstations on LAN 2 (F, G, or H) are ﬁltered, unless the source address is the address of an authorized user on LAN 1 (B, C, or D). Fast Network 10 User Guide Using Filters for Security Purposes FN10...
Page 96: Using Filters To Enhance Network Performance
For example, it might be desirable to block DECnet broadcast trafﬁc from a LAN that includes no devices that use DECnet data packets. • Prevent multicast packets from being forwarded to a speciﬁc network segment (localized broadcast storm prevention). Page 5-16 Fast Network 10 User Guide...
Page 97 LAN 1 Concentrator Concentrator LAN 3 Figure 5-4 Using Firewall Filters to Reduce Multicasts Fast Network 10 User Guide Using Filters to Enhance Network Performance Concentrator LAN 2 FN10 Concentrator LAN 4...
Page 98 This ﬁlter blocks AppleTalk I multicasts (or all AppleTalk I trafﬁc if the destination address ﬁeld is omitted) from LAN 1 to LANs 2 and 3, yet AppleTalk I trafﬁc to LAN 4 is permitted because LAN 4 is not speciﬁed for ﬁltering. Page 5-18 Fast Network 10 User Guide...
Page 99: Configuring A Port Filter
Operator: PktCnts: Octets: LasrSRC: Type <cr> to display the next filter ...> See Table 5-2 for information on the conﬁgurable ﬁelds. Fast Network 10 User Guide command to ﬁnd the ﬁlter index number of the Entry True True 00:00:00:00:00:00 00:00:00:00:00:00...
Page 100 If ff:ff:ff:ff:ff:ff is the mask you want to use, you do not need to enter anything. If you want to use a different mask, enter that value. Page 5-20 False. Fast Network 10 User Guide exit.
Page 101 True – Filter the packet if the masked value matches. False – Filter the packet if the masked valued does not match. 16. Enter the field origin. 17. Enter the field offset. Fast Network 10 User Guide Conﬁguring a Port Filter Page 5-21...
Page 102: Modifying A Port Filter
What you had previously entered becomes the default value and is displayed in brackets [ ]. Make any changes you want following the instructions for adding a filter. Page 5-22 Fast Network 10 User Guide...
Page 103: Deleting A Port Filter
Port ﬁlters, they will have little effect on performance. However, a large number of Port ﬁlters can reduce the maximum possible forwarding rate. For this reason, ﬁlters that are no longer needed should be removed. Fast Network 10 User Guide Filtering and Performance Considerations Page 5-23...
Page 104 Chapter 5: FN10 Filters Page 5-24 Fast Network 10 User Guide...
Page 105: Chapter 6 Fn10 Diagnostics And Troubleshooting
Automatic reset in response to a non-recoverable failure The power-up diagnostics test processors, memory, and other critical hardware components of the FN10. All diagnostic software is stored in non-volatile memory (EPROM). Fast Network 10 User Guide CHAPTER 6 Page 6-1...
Page 106: Power-Up Led Sequence
The power-up diagnostic tests performed on the FN10 include: • ROM checksum test • Instruction/Data memory test • Memory map test • Interrupt test • Packet memory test • Shared RAM component test • Ethernet data loopback test Page 6-2 Fast Network 10 User Guide...
Page 107: Software Checksum Comparison
FN10 will halt execution and will not boot to operational mode. 6.3 DIAGNOSTIC LOOPBACK TESTS You can perform local and remote loopback tests on any Ethernet port while the FN10 is operational. Fast Network 10 User Guide Responses to Failures at Power-up Page 6-3...
Page 108: Loopback Tests
The front panel of the FN10 includes LEDs that indicate the status or activity of various system components. Figure 6-1 shows the FN10 front panel LEDs and buttons. The LEDs and buttons are described in Tables 6-1 and 6-2. Page 6-4 Fast Network 10 MIB Reference Fast Network 10 User Guide...
Page 109 2 3 4 5 6 Port Status LEDs (lower row) Segment Status Option Select Button Figure 6-1 FN10 Front Panel LEDs Fast Network 10 User Guide Status and Activity Indicators 13 14 15 16 17 18 Link Link 4 5 6...
Page 110 Off – Indicates the FN10 is not receiving power. If the Ready LED continues to blink after power-up diagnostics are complete, it could mean the FN10 is overheating. CAUTION Table 6-2 describes the FN10 buttons. Page 6-6 Fast Network 10 User Guide...
Page 111: Troubleshooting
Check to see if the number of carrier losses is increasing using LCM. This indicates that the connection is suspect. • Check to see if the number of total collisions has dramatically increased using LCM. Fast Network 10 User Guide Troubleshooting Page 6-7...
Page 112: Fn10 Has Rebooted
Check to see if the Spanning Tree topology is stable using LCM. • Check that a pathway to the FN10 exists. • Verify the FN10’s IP address using LCM. Page 6-8 command to check the FN10 diagnostic codes, Fast Network 10 User Guide...
Page 113: A.1 Fn10 Specifications
Receive activity Both Transmit and Receive activity Collision User-deﬁned Ready (1) Power (Pwr) (1) Fast Network 10 User Guide APPENDIX A 1.75 in (4.45 cm) (1 u) 17 in (43.18 cm) 15.75 in (40 cm) 9 lb (4.1 kg) Tabletop or rack-mount...
Page 114 Any SNMP-based network management system Certiﬁcation Safety Emission Immunity Page A-2 UL 1950, CSA C22.2 No. 950 , EN 60950, and IEC 950 FCC Part 15 Class A, VCCI Class 1, EN 55022 Class A EN 50082-1 Fast Network 10 User Guide...
Page 115: Serial Cable Pin Assignments
According to the 10BASE-T speciﬁcation, pins 1 and 2 on the connector are used for transmitting data; pins 3 and 6 are used for receiving data, as shown in Table A-1. Fast Network 10 User Guide Serial Cable Pin Assignments PC DB-9 (female)
Page 116: Straight-Through Wiring
Table A-2. Table A-2 Straight-through RJ45 Pin Assignments 1 (Tx+) 2 (Tx-) 3 (Rx+) 6 (Rx-) Page A-4 Table A-1 Pin Assignments Assignment Device 1 (Tx+) 2 (Tx-) 3 (Rx+) 6 (Rx-) Fast Network 10 User Guide...
Page 117: A.5 Crossover Wiring
This rule is completely consistent with the IEEE 802.3 NOTE speciﬁcation, and is meant only to summarize the conﬁguration speciﬁcation. Fast Network 10 User Guide Crossover Wiring FN10 3 (Rx+) 6 (Rx-)
Page 118 Appendix A: Technical Speciﬁcations Page A-6 Fast Network 10 User Guide...
Page 119: Appendix Bglossary
Binds IP addresses to speciﬁc MAC addresses. attenuation The amount of power (or light) lost as power travels through a medium from the transmitter to the receiver. Difference between transmitted and received power, in decibels (dB). Fast Network 10 User Guide Page B-1...
Page 120 ﬁlter A ﬁlter that can include several conﬁgurable ﬁelds and can be used to ﬁlter network trafﬁc in a speciﬁc way. Page B-2 Fast Network 10 User Guide...
Page 121 An address “learned” by the FN10, as opposed to addresses that are manually entered into the Bridge Address Table. The FN10 “learns” addresses by reading them from the data packets it processes. Fast Network 10 User Guide Page B-3...
Page 122 A data message that includes a source address, destination address, data, frame check sequence (FCS), and control information. Page B-4 Fast Network 10 User Guide...
Page 123 A generic reference to a network built using internetworking technology. Internet A large collection of connected networks which use TCP/IP. (Also referred to as the DARPA Internet, NSF/DARPA Internet or the Federal Research Internet.) Fast Network 10 User Guide Page B-5...
Page 124 (with no intermediate switching nodes). LMA (local management agent) Software running on a network device to control the device in terms of network management functions. Page B-6 Fast Network 10 User Guide...
Page 125 OSI (Open Systems Interconnection) Refers to the OSI reference model, a logical structure for network operations. OSI is the internationally accepted framework of standards for internetwork communication. Fast Network 10 User Guide Page B-7...
Page 126 The time it takes for a signal to travel across a network. protocol A set of rules used by computers and related devices to communicate with each other. protocol suite A group of protocols related to a common framework. Page B-8 Fast Network 10 User Guide...
Page 127 An intelligent, protocol independent device used to connect similar or dissimilar LANs. symbol The smallest signaling element used by the MAC sublayer. Each symbol corresponds to a speciﬁc sequence of code bits to be transmitted by the physical layer. Fast Network 10 User Guide Page B-9...
Page 128 A station is upstream from its neighbor if it receives data before its neighbor receives the data. WAN (wide area network) A communication network that spans a large geographic area. Page B-10 Fast Network 10 User Guide...
Page 129: Index
4-19 for ASCII terminal 2-7 setting 4-18 big-endian 4-13 BPDU (Bridge Protocol Data Unit) 3-5 Fast Network 10 User Guide INDEX Bridge Address Table, defined 1-9 Bridge Protocol Data Unit (BPDU) 3-5 bridging functions disabling 3-6 displaying 3-6...
Page 130 3-18 IP addresses assigning 3-3 deleting 3-4 displaying 3-4, 4-13, 4-17 IP subnet mask, changing 3-4, 4-17 connecting 2-7 description of 1-15, 4-1 LCM command syntax 1-16 LCM commands addresses display 4-11, 4-16 Fast Network 10 User Guide...
Page 131 5-22 MIB variables 3-17 multicast storm protection defined 3-16 MIB variables 3-16 non-volatile memory 6-3 noRIP option 4-17 Fast Network 10 User Guide operational diagnostics 6-3 OSI Reference Model 1-7 performance, enhancing with filters 5-16 pin assignments 10BASE-T A-3...
Page 132 6-7 trunking broken 3-11 closed 3-10, 3-11 configuring groups 3-8 disabled 3-11 heldown 3-10, 3-11 joined 3-10, 3-11 overview of 3-7 turning on 3-9 Index-4 virtual LANs 5-4 wiring crossover A-5 straight-through A-4 Fast Network 10 User Guide...

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Fn10 Fn10-12 Fn10-24

Cabletron Systems Fast Network 10 User Manual

Chapter 1 Introduction

Chapter 2 Unpacking and Installing Your Fn10

Chapter 3 Configuring Your Fn10

Chapter 4 Monitoring and Managing Your Fn10

Chapter 5 Fn10 Filters

Chapter 6 Fn10 Diagnostics and Troubleshooting

Appendix A Technical Specifications

Appendix Bglossary

Index

Quick Links

USER GUIDE

Troubleshooting

Need help?

Questions and answers

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Summary of Contents for Cabletron Systems Fast Network 10

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Table of Contents