Avaya Configuring Bridging Services Manual do Utilizador

Configuring Bridging ServicesPart No. 117351-B Rev. 00April 1999BayRS Version 13.20Site Manager Software Version 7.20 BCC Version 4.20

x117351-B Rev. 00Examples of Commands for Starting Transparent Bridge and Spanning Tree ...6-5Customizing Global Transparent Bridge Para

Configuring Bridging Services2-42117351-B Rev. 00 Parameter: Inbound STEs Default: Accept Options: Accept | Block Function: Specifies whether the brid

Using Source Routing Bridge Services117351-B Rev. 002-43 Parameter: IP Address Default: None Options: Any valid IP address Function: Shows the IP add

Configuring Bridging Services2-44117351-B Rev. 00 Parameter: Encapsulation Format Default: Proprietary Options: Proprietary | Standard Function: Indic

Using Source Routing Bridge Services117351-B Rev. 002-45 • If your router, running software Version 8 or higher, communicates with another router runn

Configuring Bridging Services2-46117351-B Rev. 002.Click on Add. The Add Bridge ID window appears (Figure 2-21).Figure 2-21. Add Bridge ID Window3.Ent

Using Source Routing Bridge Services117351-B Rev. 002-47 Parameter: New Source Routing Bridge ID Default: None Options: 1 to 15 Function: Specifies t

Configuring Bridging Services2-48117351-B Rev. 00The Source Routing Bridge IP Explorer Addresses window appears (Figure 2-22), which lists the defined

Using Source Routing Bridge Services117351-B Rev. 002-49 Site Manager returns you to the Source Routing Bridge IP Explorer Addresses window.The IP add

Configuring Bridging Services2-50117351-B Rev. 00Editing Source Route Spanning Tree Global ParametersTo edit the source route spanning tree global par

Using Source Routing Bridge Services117351-B Rev. 002-51 Parameter: Spanning Tree Enable Default: Enable Options: Enable | Disable Function: Enables

117351-B Rev. 00xiEnabling and Disabling 15-Character NetBIOS Name Caching ...7-7Enabling and Disabling the Creation of MIB Insta

Configuring Bridging Services2-52117351-B Rev. 00 Parameter: Bridge MAC Address Default: Defaults to a unique MAC address that the router automaticall

Using Source Routing Bridge Services117351-B Rev. 002-53 Parameter: Max Age Default: 20 [seconds (expressed in hundredths of a second: 2000)] Options

Configuring Bridging Services2-54117351-B Rev. 00 Parameter: Forward Delay Default: 15 [seconds (expressed in hundredths of a second: 1500)] Options:

Using Source Routing Bridge Services117351-B Rev. 002-55 Editing Source Route Spanning Tree Interface ParametersTo edit the source route spanning tree

Configuring Bridging Services2-56117351-B Rev. 00Source Route Spanning Tree Interface Parameter DescriptionsUse these parameter descriptions as a guid

Using Source Routing Bridge Services117351-B Rev. 002-57 Deleting Source Routing from the RouterTo delete source routing from all circuits on which yo

117351-B Rev. 003-1 Chapter 3Using NetBIOS ServicesThis chapter provides:• An overview of NetBIOS• Implementation notes you should consider before you

Configuring Bridging Services3-2117351-B Rev. 00You can configure the Bay Networks source routing bridge so that it treats NetBIOS names as though the

Using NetBIOS Services117351-B Rev. 003-3 Establishing SessionsOnce a NetBIOS application determines that its name is unique on the network, the appli

xii117351-B Rev. 00Routing Control ... B-2Type of

Configuring Bridging Services3-4117351-B Rev. 006.Based on the information gained from the name-recognized frame accepted by the originating applicati

Using NetBIOS Services117351-B Rev. 003-5 Name CachingThe source route bridge NetBIOS name cache contains NetBIOS names, MAC addresses, and the RIF ne

Configuring Bridging Services3-6117351-B Rev. 00For optimal efficiency, you should use client name caching on the routers that are nearest to the serv

Using NetBIOS Services117351-B Rev. 003-7 If you disable datagram name caching, the source routing bridge cannot cache NetBIOS names and RIFs that it

Configuring Bridging Services3-8117351-B Rev. 00Query caching consumes approximately 100 bytes per entry. Each cache entry remains in the query cache

Using NetBIOS Services117351-B Rev. 003-9 You can adjust the timeout parameter for the query cache by means of the NetBIOS Query Cache Age parameter,

Configuring Bridging Services3-10117351-B Rev. 00You can use server name caching regardless of whether a source route spanning tree exists, because th

Using NetBIOS Services117351-B Rev. 003-11 Enabling NetBIOS ServicesThis section describes how to enable NetBIOS services under source routing. It ass

Configuring Bridging Services3-12117351-B Rev. 00Figure 3-1. Configuration Manager WindowFor each NetBIOS parameter, this section describes default se

Using NetBIOS Services117351-B Rev. 003-13 Editing NetBIOS Global ParametersTo edit the global NetBIOS parameters:1.Select Protocols > Source Routi

117351-B Rev. 00xiiiFiguresFigure 1-1. Forwarding Table Update ...1-2Figure 1-2.

Configuring Bridging Services3-14117351-B Rev. 00NetBIOS Global Parameter DescriptionsUse these parameter descriptions as a guide when you configure t

Using NetBIOS Services117351-B Rev. 003-15 Parameter: NetBIOS Datagram RIF Cache Default: Disable Options: Enable | Disable Function: Globally enable

Configuring Bridging Services3-16117351-B Rev. 00 Parameter: Max Name Cache Entries Default: 100 Options: 1 to 2147483648 Function: Specifies the ma

Using NetBIOS Services117351-B Rev. 003-17 Parameter: Hash Entry Count Default: 253 Options: 253 to 2147483648 Function: Specifies the number of ent

Configuring Bridging Services3-18117351-B Rev. 00 Parameter: NetBIOS Query Cache Default: Disable Options: Enable | Disable Function: Globally enables

Using NetBIOS Services117351-B Rev. 003-19 Parameter: Max Number Query Cache Entries Default: 100 Options: 1 to 2147483647 Function: Specifies the ma

Configuring Bridging Services3-20117351-B Rev. 00Editing NetBIOS Interface ParametersTo edit NetBIOS interface parameters:1.Select Protocols > Sour

Using NetBIOS Services117351-B Rev. 003-21 NetBIOS Interface Parameter DescriptionsUse these parameter descriptions as a guide when you configure the

Configuring Bridging Services3-22117351-B Rev. 00 Parameter: NetBIOS Datagram RIF Cache Default: Enable Options: Enable | Disable Function: Enables or

Using NetBIOS Services117351-B Rev. 003-23 Using Statically Configured NetBIOS Clients and ServersThe following sections describe how to add, edit, an

xiv117351-B Rev. 00Figure 2-11. Tracking an IP-Encapsulated Frame from ES1 to ES2 ...2-17Figure 2-12. Structure of an IP-Enca

Configuring Bridging Services3-24117351-B Rev. 00Figure 3-5. NetBIOS Window3.Enter values for the parameters, using the descriptions in the next secti

Using NetBIOS Services117351-B Rev. 003-25 Parameter: NetBIOS Station Name Default: None Options: Any valid NetBIOS name Function: Specifies a NetBIO

Configuring Bridging Services3-26117351-B Rev. 00 Parameter: RIF from Router Default: None Options: Any valid RIF, with entries specified in hexadecim

Using NetBIOS Services117351-B Rev. 003-27 Parameter: Enable Default: Enable Options: Enable | Disable Function: Enables or disables caching of the N

Configuring Bridging Services3-28117351-B Rev. 00Deleting a Statically Configured NetBIOS NameTo delete a statically configured NetBIOS name:1.Select

117351-B Rev. 004-1 Chapter 4Using Translation Bridge ServicesThis chapter contains:• An overview of the transparent-to-source routing translation bri

Configuring Bridging Services4-2117351-B Rev. 00DatabasesTo connect the TB and SR networks, the translation bridge uses two databases. The following s

Using Translation Bridge Services117351-B Rev. 004-3 Bridge OperationsThe Bay Networks translation bridge software provides a link between the transpa

Configuring Bridging Services4-4117351-B Rev. 00-- If the source address is in the RIF table, updates its routing information.-- If the destination ad

Using Translation Bridge Services117351-B Rev. 004-5 • If the destination address is not in the forwarding table, the transparent bridge forwards the

117351-B Rev. 00xvFigure 5-7. Circuit List Window ...5-15Figure 5-8. Cir

Configuring Bridging Services4-6117351-B Rev. 00Frame Format SelectionThe Ethernet Version 2 and Ethernet 802.3 protocols transmit data using differen

Using Translation Bridge Services117351-B Rev. 004-7 Implementation NotesThe following sections contain specific information you should know before yo

Configuring Bridging Services4-8117351-B Rev. 00• FDDI encapsulation• Native SRB on FDDILoop-Free OperationLoops occur in the network when there are s

Using Translation Bridge Services117351-B Rev. 004-9 • Through bridge A, across TB network 3, through bridge D, to the destination on TB network 2.To

Configuring Bridging Services4-10117351-B Rev. 00Figure 4-2. Spanning Tree with Translation BridgingWhen you use the spanning tree protocol in a trans

Using Translation Bridge Services117351-B Rev. 004-11 The destination MAC address for these BPDUs is the bit-swapped address used for transparent span

Configuring Bridging Services4-12117351-B Rev. 00Remember that the spanning tree algorithm works only if you use token ring interfaces to the SR netwo

Using Translation Bridge Services117351-B Rev. 004-13 Figure 4-3. Edit Translation Bridge Global Parameters Window Parameter: Virtual LAN ID Default:

Configuring Bridging Services4-14117351-B Rev. 00Creating the Translation BridgeTo configure the translation bridge to run on the router, select Proto

Using Translation Bridge Services117351-B Rev. 004-15 Editing Translation Bridge ParametersAfter you configure the translation bridge to operate on th

Configuring Bridging Services4-16117351-B Rev. 00Figure 4-5. Edit Translation Bridge Global Parameters Window2.Edit the parameters, using the descript

Using Translation Bridge Services117351-B Rev. 004-17 Parameter: Enable Default: Enable Options: Enable | Disable Function: Switches on and off the

Configuring Bridging Services4-18117351-B Rev. 00 Parameter: Max Translation Entries Default: 255 Options: Any integer value Function: Specifies the m

Using Translation Bridge Services117351-B Rev. 004-19 Parameter: Broadcast Conversion Default: Enable Options: Enable | Disable Function: If you enab

Configuring Bridging Services4-20117351-B Rev. 00 Parameter: Source Route Explorer Type Default: Spanning Tree Options: Spanning Tree | All Routes Fun

Using Translation Bridge Services117351-B Rev. 004-21 Editing Translation Bridge MAC Address ConversionsToken ring networks use functional addresses f

Configuring Bridging Services4-22117351-B Rev. 00Figure 4-6. Address Mapping List Window2.Click on Add. The Translation Bridge Address Mapping window

Using Translation Bridge Services117351-B Rev. 004-23 Translation Bridge Address Mapping Parameter DescriptionsUse these parameter descriptions as a g

Configuring Bridging Services4-24117351-B Rev. 00Editing Translation Bridge Station TypeThis section describes how to configure the translation bridge

Using Translation Bridge Services117351-B Rev. 004-25 Figure 4-9. Translation Bridge Address Mapping Window3.Edit the parameters, using the descriptio

117351-B Rev. 00xviiTablesTable A-1. Transparent Bridge Global Parameters ... A-1Table A-2. Transparen

Configuring Bridging Services4-26117351-B Rev. 00 Parameter: Ethernet Type Default: Ethernet Options: Ethernet | IEEE8023 Function: Specifies the type

117351-B Rev. 005-1 Chapter 5Using Native Mode LAN ServicesThis chapter provides an overview of Native Mode LAN (NML) services and implementation note

Configuring Bridging Services5-2117351-B Rev. 00Each LAN in a closed user group is connected to a bridge through an NML port. LAN A in the Star Closed

Using Native Mode LAN Services117351-B Rev. 005-3 In Figure 5-1, for example, consider what happens when a member of the Star Closed User Group on LAN

Configuring Bridging Services5-4117351-B Rev. 00Implementation NotesThe following sections describe some Native Mode LAN configuration features.Defini

Using Native Mode LAN Services117351-B Rev. 005-5 For example, the Moon closed user group in Figure 5-1 closes its office on the West Side, dismantlin

Configuring Bridging Services5-6117351-B Rev. 00Figure 5-2. Edit NML Interface Window4.For instructions on editing NML parameters and assigning an acc

Using Native Mode LAN Services117351-B Rev. 005-7 The Technician Interface lets you modify parameters by issuing set and commit commands that specify

Configuring Bridging Services5-8117351-B Rev. 00Editing NML Interface ParametersTo edit NML interface parameters:1.Select Protocols > NML > Inte

Using Native Mode LAN Services117351-B Rev. 005-9 NML Interface Parameter DescriptionsUse the following descriptions as a guide when you configure the

Configuring Bridging Services5-10117351-B Rev. 00 Parameter: Add Security Header Default: Add Security Options: No Security | Add Security | Check Sec

Using Native Mode LAN Services117351-B Rev. 005-11 Parameter: SAID Value Default: 0 Options: 0 to 231 (2,147,483,648) Function: Ignored by Bay Networ

Configuring Bridging Services5-12117351-B Rev. 00Assigning an Access List to a PortTo validate a frame that is attempting to exit through an NML port,

Using Native Mode LAN Services117351-B Rev. 005-13 The NML Add Security Range window appears (Figure 5-6).Figure 5-6. NML Add Security Range Window5.S

Configuring Bridging Services5-14117351-B Rev. 00NML Add Security Range ParametersUse these parameter descriptions as a guide when you add security ra

Using Native Mode LAN Services117351-B Rev. 005-15 Enabling RangesTo enable or disable the ranges you set for a selected circuit:1.Select the Circuits

Configuring Bridging Services5-16117351-B Rev. 00Figure 5-8. Circuit Definition Window4.Select Protocol > Edit NML > Security List. The NML Filt

Using Native Mode LAN Services117351-B Rev. 005-17 NML Range Enable Parameter DescriptionUse this parameter description as a guide when you enable or

117351-B Rev. 006-1 Chapter 6Configuring Transparent Bridging and SpanningTree Using the BCCYou can use the Bay Command Console (BCC™) to configure tr

117351-B Rev. 00xix PrefaceThis guide describes how to configure bridging services on a Bay Networks® router.Before You BeginBefore using this guide,

Configuring Bridging Services6-2117351-B Rev. 00Figure 6-1. BCC Configuration Tree for Transparent Bridging and Spanning TreeboxspanspanspanspanspanBR

Configuring Transparent Bridging and Spanning Tree Using the BCC117351-B Rev. 006-3 Starting Transparent BridgingTo configure transparent bridging on

Configuring Bridging Services6-4117351-B Rev. 00You can customize transparent bridging by modifying bridge global and interface parameters as describe

Configuring Transparent Bridging and Spanning Tree Using the BCC117351-B Rev. 006-5 Examples of Commands for Starting Transparent Bridge and Spanning

Configuring Bridging Services6-6117351-B Rev. 00On a Serial Interface with Standard Protocolbox# serial slot 2 connector 1serial/2/1# standardstandard

Configuring Transparent Bridging and Spanning Tree Using the BCC117351-B Rev. 006-7 On an ATM Interface with LEC ServiceBridging on an ATM PVC is not

Configuring Bridging Services6-8117351-B Rev. 00On an MCE1 Logical-Line Interface with PPPbox# mce1 slot 4 connector 1mce1/4/1# logical-line mce1-1log

Configuring Transparent Bridging and Spanning Tree Using the BCC117351-B Rev. 006-9 On a BRI Leased Line with Standard Protocolstack# bri slot 1 modul

Configuring Bridging Services6-10117351-B Rev. 00On a Demand Circuit with Frame Relay with Default Service Recordstack# bri 1/2/1 mode 2b+dbri/1/2/1#

Configuring Transparent Bridging and Spanning Tree Using the BCC117351-B Rev. 006-11 To reenable transparent bridging on the router, navigate to the g

ii 117351-B Rev. 00Bay Networks, Inc.4401 Great America ParkwaySanta Clara, CA 95054Copyright © 1999 Bay Networks, Inc.All rights reserved. Printed in

Configuring Bridging Servicesxx117351-B Rev. 00Text ConventionsThis guide uses the following text conventions:angle brackets (< >) Indicate that

Configuring Bridging Services6-12117351-B Rev. 008192163843276865536131072For example, the following command sets the maximum number of MAC addresses

Configuring Transparent Bridging and Spanning Tree Using the BCC117351-B Rev. 006-13 Clearing the Forwarding TableYou can instruct the router to delet

Configuring Bridging Services6-14117351-B Rev. 00For example, the following command reenables transparent bridging on an interface:bridge/ethernet/2/1

Configuring Transparent Bridging and Spanning Tree Using the BCC117351-B Rev. 006-15 For example, the following command disables spanning tree on the

Configuring Bridging Services6-16117351-B Rev. 00Figure 6-2. Guidelines for Setting the Maximum Age Timer, Forward Delay, and Hello TimeTo set the max

Configuring Transparent Bridging and Spanning Tree Using the BCC117351-B Rev. 006-17 Specifying the Forward DelayAs the spanning tree algorithm operat

Configuring Bridging Services6-18117351-B Rev. 00Reconfiguring Routes Predictably and UniformlyThe true-convergence feature allows you to specify that

Configuring Transparent Bridging and Spanning Tree Using the BCC117351-B Rev. 006-19 For example, the following command sets the bridge priority to 30

Configuring Bridging Services6-20117351-B Rev. 00Assigning a Priority to an InterfaceThe interface priority, together with the bridge ID (see “Determi

117351-B Rev. 007-1 Chapter 7Configuring Source Routing Bridge ServicesUsing the BCCYou can use the Bay Command Console (BCC) to configure source rout

Preface117351-B Rev. 00xxi Acronymsitalic text Indicates file and directory names, new terms, book titles, and variables in command syntax description

Configuring Bridging Services7-2117351-B Rev. 00Figure 7-1 shows the BCC configuration tree diagram for source route bridging services.Figure 7-1. BCC

Configuring Source Routing Bridge Services Using the BCC117351-B Rev. 007-3 Starting Source Routing Services on the RouterTo enable source routing ser

Configuring Bridging Services7-4117351-B Rev. 00For example, the following command disables source routing services on the router:srb# state disabledT

Configuring Source Routing Bridge Services Using the BCC117351-B Rev. 007-5 Setting the Explorer Hop LimitThe explorer-hop-limit command specifies wha

Configuring Bridging Services7-6117351-B Rev. 00To enable or disable server name caching, navigate to the global netbios-rif-cache prompt and enter:se

Configuring Source Routing Bridge Services Using the BCC117351-B Rev. 007-7 To enable or disable datagram RIF caching, navigate to the global netbios-

Configuring Bridging Services7-8117351-B Rev. 00By default, this feature is enabled. Disable the feature if you want to release system memory and proc

Configuring Source Routing Bridge Services Using the BCC117351-B Rev. 007-9 Configuring the Name Cache AgeYou can specify the interval (in seconds) af

Configuring Bridging Services7-10117351-B Rev. 00For networks that actively use up to 2500 NetBIOS client and server names, use the value 253. To dete

Configuring Source Routing Bridge Services Using the BCC117351-B Rev. 007-11 Creating MIB Instances for Cached QueriesEnables or disables the ability

Configuring Bridging Servicesxxii117351-B Rev. 00DLSw data link switchingDSAP destination service access pointFCS frame check sequenceFDDI Fiber Distr

Configuring Bridging Services7-12117351-B Rev. 00For example, the following command sets the maximum number of entries in the query cache at 1000:netb

Configuring Source Routing Bridge Services Using the BCC117351-B Rev. 007-13 To set the NetBIOS name query cache, navigate to the global netbios-query

Configuring Bridging Services7-14117351-B Rev. 00Enabling and Disabling Statically Configured Clients and ServersYou can enable and disable the abilit

Configuring Source Routing Bridge Services Using the BCC117351-B Rev. 007-15 Step 2: Configuring a Physical InterfaceTo configure a physical interface

Configuring Bridging Services7-16117351-B Rev. 00Customizing Interface Source Routing Bridge ParametersThis section includes instructions for configur

Configuring Source Routing Bridge Services Using the BCC117351-B Rev. 007-17 To set the maximum number of route descriptors, navigate to the interface

Configuring Bridging Services7-18117351-B Rev. 00To configure inbound STEs, navigate to the interface srb prompt and enter:inbound-ste <state>st

Configuring Source Routing Bridge Services Using the BCC117351-B Rev. 007-19 To enable or disable server name caching, navigate to the interface srb p

Configuring Bridging Services7-20117351-B Rev. 00Enabling and Disabling Interface NetBIOS Datagram RIF CachingYou can enable or disable the ability of

Configuring Source Routing Bridge Services Using the BCC117351-B Rev. 007-21 Setting the WAN Broadcast AddressYou can set the data link connection ide

Preface117351-B Rev. 00xxiii Bay Networks Technical PublicationsYou can now print Bay Networks technical manuals and release notes free, directly from

Configuring Bridging Services7-22117351-B Rev. 00• If the router, running software Version 8 or later, communicates with a third-party router via an F

117351-B Rev. 00A-1 Appendix ASite Manager Default SettingsThis appendix gives the Site Manager default parameter settings for configuring bridging se

Configuring Bridging ServicesA-2117351-B Rev. 00Table A-2. Transparent Bridge Interface ParametersParameter DefaultEnable If you added bridging using

Site Manager Default Settings117351-B Rev. 00A-3 Table A-4. Spanning Tree Interface ParametersParameter DefaultEnable If you added spanning tree using

Configuring Bridging ServicesA-4117351-B Rev. 00Table A-5. Source Routing Global Parameters Parameter DefaultEnable EnableSR Bridge Internal LAN ID 0x

Site Manager Default Settings117351-B Rev. 00A-5 Table A-6. Source Routing Interface Parameters Parameter DefaultEnable EnableMax number of RDs 7Sourc

Configuring Bridging ServicesA-6117351-B Rev. 00Table A-9. Source Route Spanning Tree Global ParametersParameter DefaultSpanning Tree Enable EnableSpa

Site Manager Default Settings117351-B Rev. 00A-7 Table A-11. NetBIOS Global ParametersParameter DefaultNetBIOS Server Name Cache DisableNetBIOS Client

Configuring Bridging ServicesA-8117351-B Rev. 00Table A-13. NetBIOS Static Name ParametersParameter DefaultEnable EnableNetBIOS Station Name NoneMac A

Site Manager Default Settings117351-B Rev. 00A-9 Table A-16. Translation Bridge Ethernet Address Mapping ParametersParameter DefaultEthernet MAC Addre

117351-B Rev. 00B-1 Appendix BComponents of a Source Route FrameA source route frame consists of the fields shown in Figure B-1.Figure B-1. Fields in

Configuring Bridging ServicesB-2117351-B Rev. 00Routing Information Field (RIF)For source routing purposes, the most important part of a frame is the

Components of a Source Route Frame117351-B Rev. 00B-3 Type of FrameThe first three bits specify the type of frame and the return frame requested. Thes

Configuring Bridging ServicesB-4117351-B Rev. 00A possible value for the routing control field follows:011:1500010:2052011:4472100:8144101:11407110:17

117351-B Rev. 00C-1 Appendix CBCC show CommandsThis appendix describes how to use the BCC show command to obtain statistical data from the management

Configuring Bridging ServicesC-2117351-B Rev. 00Online Help for show CommandsTo display a list of command options, enter one of these commands at any

BCC show Commands117351-B Rev. 00C-3 show bridge forward-tableThe show bridge forward-table command displays the contents of the router’s forwarding t

Configuring Bridging ServicesC-4117351-B Rev. 00show bridge statisticsThe show bridge statistics command displays the number of frames received, trans

BCC show Commands117351-B Rev. 00C-5 show span interfacesThe show span interfaces command displays the values of key attributes for each spanning tree

117351-B Rev. 001-1 Chapter 1Using Transparent Bridge ServicesThis chapter contains information on the following topics:• The transparent bridge, incl

Configuring Bridging ServicesC-6117351-B Rev. 00show span summaryThe show span summary command displays the state of the spanning tree algorithm on th

BCC show Commands117351-B Rev. 00C-7 show srb globalThe show srb global command displays the state of the source routing bridge and the values of key

Configuring Bridging ServicesC-8117351-B Rev. 00show srb netbios-query-cacheThe show srb netbios-query-cache command displays information about the se

BCC show Commands117351-B Rev. 00C-9 show srb netbios-staticThe show srb netbios-static command displays information about statically configured NetBI

117351-B Rev. 00Index-1Numbers15-character Name Caching parameter, 3-15, 7-7802.3 framestranslated by translation bridge, 4-6translated by transparent

Index-2117351-B Rev. 00closed user group (CUG)defining, 5-3ID for, 5-1permitting overlapping traffic using, 5-4Conn. IP NTWK Ring Number parameter, 2-

117351-B Rev. 00Index-3IP encapsulation, 2-4 to 2-8, 2-24 to 2-25, 2-37, 2-42, 2-43IP Encapsulation parameter, 2-37IP Explorer Address list, 2-47 to 2

Index-4117351-B Rev. 00protocols, translation bridge support, 4-7publications, Bay Networks, xxiiiQquery caching, 3-7RRange Enable (NML) parameter, 5-

117351-B Rev. 00Index-5STE. See spanning tree explorer (STE) framesupport, Bay Networks, xxiiiTtechnical publications, xxiiitechnical support, xxiiite

Configuring Bridging Services1-2117351-B Rev. 00A transparent bridge also provides some translation services, converting frames for bridging between E

Using Transparent Bridge Services117351-B Rev. 001-3 When the bridge receives a frame, it compares the frame’s destination address with addresses in t

Configuring Bridging Services1-4117351-B Rev. 00Figure 1-2. RFC 1042 EncapsulationAppleTalk Address Resolution Protocol (ARP) frames (Ethernet frames

Using Transparent Bridge Services117351-B Rev. 001-5 Figure 1-4. Ethernet to FDDI TranslationFCSDATATYPEThrough bridge A to FDDI LANtranslation from E

117351-B Rev. 00 iiiBay Networks, Inc. Software License AgreementNOTICE: Please carefully read this license agreement before copying or using the acc

Configuring Bridging Services1-6117351-B Rev. 00Figure 1-5. FDDI to Ethernet TranslationBridge BEthernet LAN1 Ethernet LAN2FDDI LANBridge ABRG0028AFCS

Using Transparent Bridge Services117351-B Rev. 001-7 Figure 1-6. Ethernet/802.3 to FDDI TranslationThe translation process from the FDDI LAN to Ethern

Configuring Bridging Services1-8117351-B Rev. 00 Figure 1-7. AppleTalk ARP (Originating on FDDI) to 802.3 TranslationSpanning Tree AlgorithmThe spanni

Using Transparent Bridge Services117351-B Rev. 001-9 Figure 1-8. Parallel Bridge TopologyWhen end station J initially sends a frame to end station K,

Configuring Bridging Services1-10117351-B Rev. 00Next, end station K receives two copies of the frame, resulting in an inefficient use of the availabl

Using Transparent Bridge Services117351-B Rev. 001-11 2. Determine path costs.The path cost is the cost of the path to the root bridge offered by each

Configuring Bridging Services1-12117351-B Rev. 00Figure 1-10. Root Port Determination (Equal Path Costs and Root Interface Priorities)The spanning tre

Using Transparent Bridge Services117351-B Rev. 001-13 Figure 1-11 shows the resulting logical topology, which provides a loop-free topology with only

Configuring Bridging Services1-14117351-B Rev. 00If, in the network shown in Figure 1-8 on page 1-9, a majority of traffic originates on LAN A and is

Using Transparent Bridge Services117351-B Rev. 001-15 Filtering FramesYou use filters mainly for security reasons. They enable the bridge to relay or

iv 117351-B Rev. 00its own data and information and for maintaining adequate procedures apart from the Software to reconstruct lost or altered files,

Configuring Bridging Services1-16117351-B Rev. 00Enabling Spanning Tree on an InterfaceTo enable spanning tree on an interface:1.From the Select Proto

Using Transparent Bridge Services117351-B Rev. 001-17 Figure 1-13. Spanning Tree Autoconfiguration Window Parameter: Bridge Priority Default: 128 Opti

Configuring Bridging Services1-18117351-B Rev. 00 Parameter: Bridge MAC Address Default: Defaults to a unique MAC address that the router automaticall

Using Transparent Bridge Services117351-B Rev. 001-19 Figure 1-14. Configuration Manager WindowFor each bridge and spanning tree parameter, this secti

Configuring Bridging Services1-20117351-B Rev. 00Editing Bridge Global ParametersTo edit the bridge global parameters:1.Select Protocols > Bridge &

Using Transparent Bridge Services117351-B Rev. 001-21 Parameter: Enable Default: Enable Options: Enable | Disable Function: Enables or disables brid

Configuring Bridging Services1-22117351-B Rev. 00 Parameter: Enable Forwarding DB Default: Enable Options: Enable | Disable Function: If you enable th

Using Transparent Bridge Services117351-B Rev. 001-23 Figure 1-16. Bridge Interfaces Window2.Select the interface you want to edit.3.Edit the paramete

Configuring Bridging Services1-24117351-B Rev. 00 Parameter: Enable Default: If you added bridging using either the Quick-Start procedure or the confi

Using Transparent Bridge Services117351-B Rev. 001-25 Figure 1-17. Edit Spanning Tree Global Parameters Window2.Edit the parameters, using the descrip

117351-B Rev. 00vContents PrefaceBefore You Begin ...

Configuring Bridging Services1-26117351-B Rev. 00 Parameter: Bridge Priority Default: 128 Options: 0 to 65535 Function: Combined with the Bridge MAC A

Using Transparent Bridge Services117351-B Rev. 001-27 GuidelinesIf the values for Max Age, Hello Time, and Forward Delay are not the same for each br

Configuring Bridging Services1-28117351-B Rev. 00 Parameter: Hello Time Default: 2 [seconds (expressed in hundredths of a second: 200)] Options: 1 to

Using Transparent Bridge Services117351-B Rev. 001-29 Parameter: Forward Delay Default: 15 [seconds (expressed in hundredths of a second: 1500)] Opti

Configuring Bridging Services1-30117351-B Rev. 00Editing Spanning Tree Interface ParametersTo edit spanning tree interface parameters:1.Select Protoco

Using Transparent Bridge Services117351-B Rev. 001-31 Spanning Tree Interface Parameter DescriptionsUse these parameter descriptions as a guide when y

Configuring Bridging Services1-32117351-B Rev. 00 Parameter: Path Cost Default: 1 Options: 1 to 65535 Function: When this port is the root port, the p

Using Transparent Bridge Services117351-B Rev. 001-33 Deleting the Bridge and Spanning Tree from the RouterTo delete the bridge or spanning tree from

117351-B Rev. 002-1 Chapter 2Using Source Routing Bridge ServicesThis chapter provides:• An overview of source routing technology• A description of ho

vi117351-B Rev. 00Chapter 2 Using Source Routing Bridge ServicesSource Routing Overview ...

Configuring Bridging Services2-2117351-B Rev. 00Each LAN segment has a unique network-wide identification number, or ring ID. Each source routing brid

Using Source Routing Bridge Services117351-B Rev. 002-3 Figure 2-2. Source Routing DesignatorAfter the bridge adds the routing designator, it sends th

Configuring Bridging Services2-4117351-B Rev. 00Specific RoutingWhen an end station receives an ARE or STE frame, it generates a single frame, called

Using Source Routing Bridge Services117351-B Rev. 002-5 How IP Encapsulation WorksWhen you enable IP encapsulation on a source routing bridge (thus ma

Configuring Bridging Services2-6117351-B Rev. 00Figure 2-4. Source Routing over an IP Network5461.1.2.2 1.1.3.3711.1.1.11.1.5.531.1.2.21.1.3.31.1.5.5I

Using Source Routing Bridge Services117351-B Rev. 002-7 When bridge A receives a source routed frame destined for an end station on ring 4, it examine

Configuring Bridging Services2-8117351-B Rev. 00IP Encapsulation FeaturesBay Networks implementation of IP encapsulation allows you to:• Configure red

Using Source Routing Bridge Services117351-B Rev. 002-9 Source Route End Station SupportThe Bay Networks routers running IP, IPX, XNS, AppleTalk, and

Configuring Bridging Services2-10117351-B Rev. 00Figure 2-6. IP Routers Source Routing across a Token Ring Network How the Bay Networks Source Routing

Using Source Routing Bridge Services117351-B Rev. 002-11 Source Routing across a Token Ring NetworkThe Bay Networks source routing bridge handles inco

117351-B Rev. 00viiAdding or Deleting a Bridge ID on the Bridge Entry List ...2-45Adding a Bridge ID to the Bridg

Configuring Bridging Services2-12117351-B Rev. 00How the Source Routing Bridge Handles Explorer FramesThis section provides instructions on how the Ba

Using Source Routing Bridge Services117351-B Rev. 002-13 Figure 2-8. Structure of an Explorer FrameES2 ES1 8270 DSAP SSAP DATAES2 ES1 88

Configuring Bridging Services2-14117351-B Rev. 00How the Source Routing Bridge Handles Specifically Routed FramesThis section describes how the Bay Ne

Using Source Routing Bridge Services117351-B Rev. 002-15 Example A: First of several bridges to receive the SRFThe frame received by bridge C from rin

Configuring Bridging Services2-16117351-B Rev. 00Figure 2-10. Structure of a Specifically Routed Frame from ES2 to ES1C000A2FFFFFA ES2 0CB0 001A

Using Source Routing Bridge Services117351-B Rev. 002-17 Source Routing across an IP NetworkThis section provides details on how IP encapsulation work

Configuring Bridging Services2-18117351-B Rev. 00• Example C describes the actions of the last bridge of several Bay Networks bridges to handle the SR

Using Source Routing Bridge Services117351-B Rev. 002-19 Figure 2-12. Structure of an IP-Encapsulated Frame from ES1 to ES2ES2 ES1 0C30 001A 00

Configuring Bridging Services2-20117351-B Rev. 00Example B: Between the first and last bridges to receive the SRFBay Networks bridge B receives the fr

Using Source Routing Bridge Services117351-B Rev. 002-21 • Alternatively, you could configure a connectionless IP address on each router and configure

viii117351-B Rev. 00Editing NetBIOS Parameters ...3-11Editing Ne

Configuring Bridging Services2-22117351-B Rev. 00For More Information about Source RoutingThe following documents provide technical details on Source

Using Source Routing Bridge Services117351-B Rev. 002-23 If two or more Bay Networks bridges operate in parallel, you must assign different bridge IDs

Configuring Bridging Services2-24117351-B Rev. 00Internal LAN IDThe internal LAN ID is a source routing designator that identifies the virtual LAN on

Using Source Routing Bridge Services117351-B Rev. 002-25 • Specify a ring ID for the backbone IP network to which the source routing interface connect

Configuring Bridging Services2-26117351-B Rev. 00When you enable any of the source routing services, you are required to configure only a few paramete

Using Source Routing Bridge Services117351-B Rev. 002-27 Figure 2-14. Edit Source Routing Global Parameters Window Parameter: SR Bridge Internal LAN I

Configuring Bridging Services2-28117351-B Rev. 00 Parameter: SR Bridge ID Default: 0x0 Options: 0x1 to 0xf Function: Specifies this bridge’s bridge ID

Using Source Routing Bridge Services117351-B Rev. 002-29 Figure 2-15. SR Interface List Window Parameter: Source Routing Ring Number Default: 0x0 Opti

Configuring Bridging Services2-30117351-B Rev. 00Enabling Source Routing Spanning Tree Service on an InterfaceTo enable source routing spanning tree o

Using Source Routing Bridge Services117351-B Rev. 002-31 See “Editing Source Routing Parameters” on page 2-32 for instructions.Figure 2-16. Source Rou

117351-B Rev. 00ixEditing Translation Bridge Parameters ...4-15Editing Translat

Configuring Bridging Services2-32117351-B Rev. 00 Parameter: Bridge MAC Address Default: Defaults to a unique MAC address that the router automaticall

Using Source Routing Bridge Services117351-B Rev. 002-33 Figure 2-17. Configuration Manager Window

Configuring Bridging Services2-34117351-B Rev. 00Editing Source Routing Global ParametersTo edit source routing global parameters:1.Select Protocols &

Using Source Routing Bridge Services117351-B Rev. 002-35 Source Routing Global Parameter DescriptionsUse these parameter descriptions as a guide when

Configuring Bridging Services2-36117351-B Rev. 00 Parameter: SR Bridge ID Default: 0x0 Options: 0x1 to 0xf Function: Specifies this bridge’s bridge ID

Using Source Routing Bridge Services117351-B Rev. 002-37 Parameter: IP Encapsulation Default: Disable Options: Enable | Disable Function: Enables IP

Configuring Bridging Services2-38117351-B Rev. 00 Parameter: IP MTU Size (bytes) Default: 4562 Options: 0 to 4562 Function: Specifies the maximum MTU

Using Source Routing Bridge Services117351-B Rev. 002-39 Figure 2-19. SR Interface List Window2.Select the interface you want to edit.3.Edit the param

Configuring Bridging Services2-40117351-B Rev. 00Source Routing Interface Parameter DescriptionsUse these parameter descriptions as a guide when you c

Using Source Routing Bridge Services117351-B Rev. 002-41 Parameter: Source Routing Ring Number Default: 0x0 Options: 0x001 to 0xfff Function: Identi