Avaya Configuring DLSw Services Manual do Utilizador

Part No. 114063 Rev. AAugust 1996Router Software Version 11.0Site Manager Software Version 5.0Configuring DLSwServices

x 114063 Rev. AAppendix ADLSw Default SettingsAppendix BCriteria for DLSw PrioritizationPredefined DLSw Criteria ...

Configuring DLSw Services4-14 114063 Rev. A Parameter: Internal Clock Speed Default: 19200 KB Options: 1200 B| 2400 B | 4800 B | 7200 B | 9600 B |1920

Starting DLSw114063 Rev. A 4-15 Parameter: Sync Line Coding Default: NRZ Options: NRZ| NRZI | NRZI Mark Function: Sets the same line coding value for

Configuring DLSw Services4-16 114063 Rev. A Parameter: RTS Enable Default: Disable Options: Enable| Disable Function: Controls the toggling of the Req

Starting DLSw114063 Rev. A 4-17Figure 4-11. DLS Local Device Configuration Window5. Click on Add.The Local Device Configuration screen appears (Figure 4

Configuring DLSw Services4-18 114063 Rev. AFigure 4-12. Local Device Configuration WindowFollowing are descriptions of the local device configuration pa

Starting DLSw114063 Rev. A 4-19 Parameter: DLSw Mode Default: Primary Options: Primary| Secondary PP | Secondary MP Function: Specifies the type of lin

Configuring DLSw Services4-20 114063 Rev. A Parameter: PU Name Default: None Options: Any valid, 8-byte ASCII name Function: Specifies the name of the

Starting DLSw114063 Rev. A 4-21Table 4-2. IDBLOCK Numbers for Switched PUsDevice IDBLOCK NumNPSI 0033770 0043650/3680 0056100/3790 006NTO, 3767 007S/3

Configuring DLSw Services4-22 114063 Rev. A Parameter: IDNUM Default: None Options: Any 5-digit hexadecimal value from 00000 to FFFFF (for T2.0 nodes)

Starting DLSw114063 Rev. A 4-23 Parameter: XID Format Default: None Options: FIXED| VARIABLE1 | VARIABLE2 Function: Specifies the format of the XID I-fi

114063 Rev. A xiFiguresFigure 1-1. DLSw Single-Switch and Dual Switch-to-Switch Networks ...1-5Figure 1-2. Bay Networks Single-Swit

Configuring DLSw Services4-24 114063 Rev. A Parameter: Source (Virtual) SAP (hex) Default: 0x4 Range: 0x01 to 0xFE Function: Specifies the source servi

Starting DLSw114063 Rev. A 4-25 Parameter: MAXOUT Default: 7 Range: 1 to 127 Function: Controls the maximum number of consecutive frames that an SDLC

Configuring DLSw Services4-26 114063 Rev. A Parameter: Canureach Retries Default: 4294967295 Range: 0 to 4294967295 Function: Specifies the number of t

Starting DLSw114063 Rev. A 4-27 Parameter: Canureach Retries2 Default: 0 Range: 0 to 4294967295 Function: Specifies the number of times a CANUREACH mes

Configuring DLSw Services4-28 114063 Rev. A Parameter: Link Station Retries Default: 4294967295 Range: 0 to 4294967295 Function: Specifies the maximum

Starting DLSw114063 Rev. A 4-29Mapping Frame Relay AddressesIf you are configuring a Frame Relay circuit without SRB, the LLC2 Frame RelayMappings wind

Configuring DLSw Services4-30 114063 Rev. AFigure 4-14. LLC2 Frame Relay Mapping Add Window2. Specify the DLCI, Remote MAC, and Local MAC parameters,

Starting DLSw114063 Rev. A 4-31 Parameter: Remote MAC Default: None Options: Standard MSB Token Ring MAC addresses Function: Provides the remote MAC a

114063 Rev. A 5-1Chapter 5Editing DLSw ParametersThis chapter describes how to edit DLSw global and interface parameters, as wellas how to add, edit,

xii 114063 Rev. AFigure 4-1. DLSw Global Parameters Window ...4-4Figure 4-2. Source Route Enca

Configuring DLSw Services5-2 114063 Rev. AYou may be required to customize the LLC2, TCP/IP, SDLC, or SRB parametersas well, since these support DLSw

Editing DLSw Parameters114063 Rev. A 5-3Figure 5-1. Configuration Manager WindowEditing DLSw Global ParametersTo edit DLSw global parameters, begin at

Configuring DLSw Services5-4 114063 Rev. AFigure 5-2. Edit DLSw Global Parameters Window2. Edit the parameters that you want to change.3. Click on OK.

Editing DLSw Parameters114063 Rev. A 5-5DLSw Global Parameter DescriptionsThis section describes the DLSw global parameters that you can customize fro

Configuring DLSw Services5-6 114063 Rev. A Parameter: TCP Window Size Default: 8000 (octets) Range: 5000 to 64000 (octets) Function: Specifies (in octe

Editing DLSw Parameters114063 Rev. A 5-7 Parameter: IP Virtual Ring Default: None Options: Any valid, unassigned ring number from 1 to 409510 (0x0001

Configuring DLSw Services5-8 114063 Rev. A Parameter: Max Slot Sessions Default: 200 (sessions per slot) Range: 1 to 10000 Function: Specifies the maxi

Editing DLSw Parameters114063 Rev. A 5-9 Parameter: MAC Cache Age Default: 300 (s) Options: Any number of seconds greater than 20 Function: Specifies t

Configuring DLSw Services5-10 114063 Rev. A Parameter: Reject Unconfigured Peers Default: Accept Options: Accept| Reject Function: Specifies whether DLS

Editing DLSw Parameters114063 Rev. A 5-11 Parameter: Keepalive Time (sec) Default: 60 (s) Range: 0 to 2147483647 Function: Specifies the time interval

114063 Rev. A xiiiFigure 5-22. Deleting a DLSw Default NetBIOS Peer IP Table Entry ...5-40Figure 5-23. DLSw MAC Peer Configuratio

Configuring DLSw Services5-12 114063 Rev. A Parameter: Maximum Package Size Default: 1532 bytes Range: 0 to 2147483647 Function: Specifies the maximum

Editing DLSw Parameters114063 Rev. A 5-13 Parameter: Packaging Threshold Default: 20 percent of the TCP window size Range: 0 to 100 percent (0 indicat

Configuring DLSw Services5-14 114063 Rev. AFigure 5-3. DLSw Interface Configuration Window2. Select an interface from the list.The interfaces appear in

Editing DLSw Parameters114063 Rev. A 5-15 Parameter: Enable Default: Enable Options: Enable| Disable Function: Enables or disables Data Link Switching

Configuring DLSw Services5-16 114063 Rev. AFigure 5-4. Circuit List WindowFigure 5-5. Edit Connector WindowIn either case, the Circuit Definition windo

Editing DLSw Parameters114063 Rev. A 5-17Figure 5-6. Circuit Definition Window1. Select Protocols > DLSw > Interfaces.The Edit DLSw Interface win

Configuring DLSw Services5-18 114063 Rev. A2. Click on Values and select Enable or Disable.3. If you are editing an SDLC circuit, edit the Mode parame

Editing DLSw Parameters114063 Rev. A 5-19Figure 5-8. Configured Peer in DLSw Peer Configuration WindowNote: The DLSw protocol prioritization and traffic

Configuring DLSw Services5-20 114063 Rev. AAdding a DLSw Peer IP Table EntryTo add a new DLSw Peer IP Table entry, begin at the DLSw Peer Configuration

Editing DLSw Parameters114063 Rev. A 5-21 Parameter: Peer IP Address Default: None Options: Any valid, 32-bit IP address in the form network.host (usi

Configuring DLSw Services5-22 114063 Rev. AFigure 5-10. Deleting a DLSw Peer IP Table EntryThe system software deletes the entry, and the entry disapp

Editing DLSw Parameters114063 Rev. A 5-23To access the DLSw Slot IP Table, begin at the Configuration Manager window(refer to Figure 5-1) and select Pr

Configuring DLSw Services5-24 114063 Rev. AAdding a DLSw Slot IP Table EntryTo add a new DLSw Slot IP Table entry, begin at the DLSw Slot Configuration

Editing DLSw Parameters114063 Rev. A 5-25 Parameter: Slot Default: None Range: 1 to 14 Function: Specifies the slot number that you want to associate w

Configuring DLSw Services5-26 114063 Rev. A3. Click on the IP Address for TCP Connection parameter box, and enter anew IP address.4. Click on Apply.Th

Editing DLSw Parameters114063 Rev. A 5-27 Parameter: IP Address for TCP Connection Default: None Options: Any valid, 32-bit IP address in the form net

Configuring DLSw Services5-28 114063 Rev. A1. Select the Slot IP Table entry.2. Click on Delete.The system software deletes the entry you selected, an

Editing DLSw Parameters114063 Rev. A 5-29Figure 5-15. SAP Addresses in DLSw SAP Configuration WindowAdding a DLSw SAP Table EntryTo add a new SAP Table

Configuring DLSw Services5-30 114063 Rev. A2. Type the 0x prefix and then enter a hexadecimal value for the SAPparameter.Valid SAP addresses include ev

Editing DLSw Parameters114063 Rev. A 5-31Editing a DLSw SAP Table EntryYou can edit only the SAP Window (flow control) parameter associated with anexis

114063 Rev. A xvTablesTable 4-1. DLSw Startup Screens and Required Parameters ...4-2Table 4-2. IDBLOCK Numbers for Swit

Configuring DLSw Services5-32 114063 Rev. AFigure 5-17. Saving the Edited SAP Window Setting5. Click on Done.You return to the Configuration Manager wi

Editing DLSw Parameters114063 Rev. A 5-33 Parameter: SAP Window Default: 10 (frames) Range: 6 to 200 frames Function: Specifies the maximum number of u

Configuring DLSw Services5-34 114063 Rev. AFigure 5-18. Deleting a SAP Table Entry4. Click on Done.This completes the deletion procedure and returns y

Editing DLSw Parameters114063 Rev. A 5-35Figure 5-19. DLSw NetBIOS Peer Configuration WindowClicking on a name in the list window causes the DLSw Peer

Configuring DLSw Services5-36 114063 Rev. AAdding a DLSw Default NetBIOS Peer IP Table EntryTo add a new DLSw Default NetBIOS Peer IP Table entry, fro

Editing DLSw Parameters114063 Rev. A 5-37 Parameter: NetBIOS Name Default: None Options: Any valid NetBIOS name Function: Specifies the name of the rem

Configuring DLSw Services5-38 114063 Rev. AEditing a DLSw Default NetBIOS Peer IP Table EntryYou can edit only the Default NetBIOS Peer IP Address par

Editing DLSw Parameters114063 Rev. A 5-39Following is a description of the Default NetBIOS Peer IP Address parameter. Parameter: Default NetBIOS Peer

Configuring DLSw Services5-40 114063 Rev. AFigure 5-22. Deleting a DLSw Default NetBIOS Peer IP Table Entry2. Click on Delete.The system deletes the e

Editing DLSw Parameters114063 Rev. A 5-41To access the DLSw MAC Peer Configuration window, begin at the ConfigurationManager window (refer to Figure 5-1

xvi 114063 Rev. ATable C-10. LLC Troubleshooting ...C-25Table C-11. SDLC Tr

Configuring DLSw Services5-42 114063 Rev. AAdding a DLSw Default MAC Peer IP Table EntryTo add a new DLSw Default MAC Peer IP Table entry, begin at th

Editing DLSw Parameters114063 Rev. A 5-43 Parameter: MAC Address Default: None Options: Any valid, 48-bit MAC address expressed in hexadecimal notatio

Configuring DLSw Services5-44 114063 Rev. A4. Click on Apply.This saves your change to the router configuration file.Figure 5-25. Saving a DLSw Default

Editing DLSw Parameters114063 Rev. A 5-45 Parameter: Default MAC Peer IP Address Default: None Options: Any valid, 32-bit IP address in the form netwo

Configuring DLSw Services5-46 114063 Rev. AThe system software deletes the entry you select, and the entry disappearsfrom the list.3. Click on Done.Th

Editing DLSw Parameters114063 Rev. A 5-47Figure 5-27. DLS Local Device Configuration Window2. Click on the local device whose parameters you want to ch

Configuring DLSw Services5-48 114063 Rev. A• To add a local device, start at the Configuration Manager window andselect the connector to which you are

Editing DLSw Parameters114063 Rev. A 5-49DLSw Local Devices Parameter DescriptionsThis section describes the DLSw Local Devices parameters that you ca

Configuring DLSw Services5-50 114063 Rev. A Parameter: DLSw Mode Default: Primary Options: Primary| Secondary PP | Secondary MP Function: Specifies the

Editing DLSw Parameters114063 Rev. A 5-51 Parameter: PU Type Default: None Options: T2.0| T2.1 Function: Specifies the type of the XID-sending node. Th

114063 Rev. A xviiAbout This GuideThis guide describes how to customize Bay Networks™ router software for DataLink Switching (DLSw) services.The guide

Configuring DLSw Services5-52 114063 Rev. A Parameter: IDNUM Default: None Options: Any 5-digit hexadecimal value from 00000 to FFFFF (for T2.0 nodes)

Editing DLSw Parameters114063 Rev. A 5-53 Parameter: XID Format Default: None Options: FIXED| VARIABLE1 | VARIABLE2 Function: Specifies the format of t

Configuring DLSw Services5-54 114063 Rev. A Parameter: Source (Virtual) SAP (hex) Default: 0x4 Range: 0x01 to 0xFE Function: Specifies the source servi

Editing DLSw Parameters114063 Rev. A 5-55 Parameter: MAXOUT Default: 7 Range: 1 to 127 Function: Controls the maximum number of consecutive frames tha

Configuring DLSw Services5-56 114063 Rev. A Parameter: Canureach Retries Default: 4294967295 Range: 0 to 4294967295 Function: Specifies the number of t

Editing DLSw Parameters114063 Rev. A 5-57 Parameter: Canureach Retries2 Default: 0 Range: 0 to 4294967295 Function: Specifies the number of times a CAN

Configuring DLSw Services5-58 114063 Rev. A Parameter: Link Station Retries Default: 4294967295 Range: 0 to 4294967295 Function: Specifies the maximum

Editing DLSw Parameters114063 Rev. A 5-59Deleting a DLSw Local Device EntryTo delete a DLSw Local Device entry from the router configuration, start at

114063 Rev. A 6-1Chapter 6Using DLSw PrioritizationThis chapter provides guidelines for implementing DLSw TCP-levelprioritization. Following an overvi

Configuring DLSw Servicesxviii 114063 Rev. ABefore You BeginBefore using this guide, you must complete the following procedures:• Open a configuration

Configuring DLSw Services6-2 114063 Rev. AAs a router operates, network traffic from a variety of sources converges at aninterface. Without protocol pr

Using DLSw Prioritization114063 Rev. A 6-3DLSw Priority QueuesThis section describes how DLSw protocol prioritization works, and definesDLSw terms.Alth

Configuring DLSw Services6-4 114063 Rev. AThe Enqueuing ProcessThe router enqueues packets that match a DLSw priority filter as follows:1. Applies filte

Using DLSw Prioritization114063 Rev. A 6-5One goal of weighted dequeuing is to send smaller packets ahead of large packets,without violating the bandw

Configuring DLSw Services6-6 114063 Rev. AFigure 6-1. Weighted Bandwidth Allocation

Using DLSw Prioritization114063 Rev. A 6-7Tuning DLSw Protocol PrioritizationThis section explains how congestion control and queue depth affect DLSwp

Configuring DLSw Services6-8 114063 Rev. AConfiguring Default Priority QueuesYou configure the default behavior of DLSw protocol prioritization using th

Using DLSw Prioritization114063 Rev. A 6-9Enabling the Default Queues for Configured and Unconfigured PeersBegin by displaying the DLSw Protocol Priorit

Configuring DLSw Services6-10 114063 Rev. AFigure 6-3. Global DLSw PP Parameters/Defaults Window2. Select Protocol Priority (PP) and click on Values.T

Using DLSw Prioritization114063 Rev. A 6-115. To also use the default priority queue structure for all unconfiguredpeers, change the value of the PP fo

About This Guide114063 Rev. A xixseparator ( > ) Separates menu and option names in instructions andinternal pin-to-pin wire connections.Example: P

Configuring DLSw Services6-12 114063 Rev. ACustomizing the Default Queue ConfigurationOnce you enable DLSw protocol prioritization, any DLSw peer uses

Using DLSw Prioritization114063 Rev. A 6-133. Click on OK when you are finished editing parameters.DLSw Protocol Prioritization Parameter DescriptionsU

Configuring DLSw Services6-14 114063 Rev. A Parameter: PP for Unconfigured Peers Default: Disabled Options: Enabled| Disabled Function: Toggles protoco

Using DLSw Prioritization114063 Rev. A 6-15 Parameter: Default Bandwidths Default: 60, 40, 0, 0, 0, 0, 0, 0, 0, 0 Range: Ten entries (one per queue) o

Configuring DLSw Services6-16 114063 Rev. AConfiguring Peer-Specific Priority QueuesYou create the priority queue configuration for all configured and unc

Using DLSw Prioritization114063 Rev. A 6-17The Peer Queue Configuration window appears (Figure 6-9).Figure 6-9. Peer Queue Configuration WindowThe Peer

Configuring DLSw Services6-18 114063 Rev. AFigure 6-10. Add/Edit/Delete Queues Window4. Click on Add.The Add Queue window appears(Figure 6-11).Figure

Using DLSw Prioritization114063 Rev. A 6-196. Enter a bandwidth.The bandwidth for Q0 must be greater than 0. You can assign any percentagebetween 0 an

Configuring DLSw Services6-20 114063 Rev. AFigure 6-13. Peer Queue Configuration Window with Both Default andPeer-Specific ConfigurationsEnabling or Disa

Using DLSw Prioritization114063 Rev. A 6-214. Click on Apply.5. Click on Done.Customizing Specific DLSw Peer QueuesOnce you create and enable peer-spec

ii 114063 Rev. A4401 Great America Parkway 8 Federal StreetSanta Clara, CA 95054 Billerica, MA 01821Copyright © 1988–1996 Bay Networks, Inc.All rights

Configuring DLSw Servicesxx 114063 Rev. ASAP service access pointSDLC Synchronous Data Link ControlSNA Systems Network ArchitectureSRB source route br

Configuring DLSw Services6-22 114063 Rev. APeer Queue Configuration Parameter DescriptionsUse the following descriptions as guidelines when you configur

Using DLSw Prioritization114063 Rev. A 6-23 Parameter: Max Queue Size Default: 16000 Range: 5000 to 2147483647 bytes Function: Specifies the maximum si

Configuring DLSw Services6-24 114063 Rev. AThe DLS Priority/Outbound Filters window appears (Figure 6-16).Figure 6-16. DLS Priority/Outbound Filters W

Using DLSw Prioritization114063 Rev. A 6-25Figure 6-17. Filter Template Management WindowThe software includes sample templates for filtering NetBIOS a

Configuring DLSw Services6-26 114063 Rev. A4. Click on Create to make a new template, or select an existing templateand click on Edit.The Create DLS T

Using DLSw Prioritization114063 Rev. A 6-27Figure 6-19. Selecting the DLSw Queue ActionThe Queue Number window appears (Figure 6-20).Figure 6-20. Queu

Configuring DLSw Services6-28 114063 Rev. A8. Enter the queue number.DLSw will send traffic that meets this filter’s criteria and ranges to the queuenum

Using DLSw Prioritization114063 Rev. A 6-2914. Select the template that you want to apply from the Templates scroll box.15. Click on OK.The DLS Priori

Configuring DLSw Services6-30 114063 Rev. AUsing the DLSw Peer Configuration WindowIn addition to using the menu selections shown in this section, you

Using DLSw Prioritization114063 Rev. A 6-31Sample Templates for DLSw Protocol PrioritizationIn addition to using the Configuration Manager screens desc

114063 Rev. A xxiTechnical Support and Online ServicesTo ensure comprehensive network support to our customers and partnersworldwide, Bay Networks Cus

114063 Rev. A A-1Appendix ADLSw Default SettingsTables A-1 through A-9 list the default settings for DLSw parameters. Use theConfiguration Manager to e

Configuring DLSw ServicesA-2 114063 Rev. ATable A-2. DLSw Interface ParametersParameter DefaultEnable EnableDLSw Mode PrimaryTable A-3. DLSw Peer IP T

DLSw Default Settings114063 Rev. A A-3Table A-5. DLSw Slot IP Table ParametersParameter DefaultIP Address for TCP Connection NoneSlot NoneIP Address N

Configuring DLSw ServicesA-4 114063 Rev. ATable A-9. DLSw Local Devices ParametersParameter DefaultDisable EnableLink Station Address (hex) NoneDLSw M

114063 Rev. A B-1Appendix BCriteria for DLSw PrioritizationThis appendix includes both the DLSw predefined criteria that the ConfigurationManager provid

Configuring DLSw ServicesB-2 114063 Rev. APredefined DLSw CriteriaYou configure outbound filters for DLSw traffic based on the predefined criterialisted in

Criteria for DLSw Prioritization114063 Rev. A B-3Table B-2. DLSw Reference Points for FID2 FramesCriteria (FID2) Reference Point Offset (bits) Length

Configuring DLSw ServicesB-4 114063 Rev. ASpecifying MAC Address RangesWhen you create a filter that includes a source or destination MAC Addresscriter

Criteria for DLSw Prioritization114063 Rev. A B-5Source Routing Bridge Functional MAC AddressesFunctional MAC addresses are Destination MAC addresses

Configuring DLSw Servicesxxii 114063 Rev. ABay Networks Customer ServiceIf you purchased your Bay Networks product from a distributor or authorizedres

Configuring DLSw ServicesB-6 114063 Rev. ATable B-6. SAP CodesDescription SAP CodeXID or TEST 00Individual Sublayer Mgmt 02Group Sublayer Mgmt 03SNA 0

114063 Rev. A C-1Appendix CDLSw TroubleshootingThis appendix provides information on diagnosing and troubleshooting DLSwnetworks, specifically:• Viewin

Configuring DLSw ServicesC-2 114063 Rev. AFor information on viewing events and messages using Site Manager or acompatible third-party network managem

DLSw Troubleshooting114063 Rev. A C-3Using and Decoding the DLSw LogThis section provides general information about DLSw states and events, asdescribe

Configuring DLSw ServicesC-4 114063 Rev. ASample Log EntriesThis section describes some common sample DLSw event entries that may appearin the log file

DLSw Troubleshooting114063 Rev. A C-5Event Code 17# 4: 04/25/95 22:43:00 DEBUG SLOT 1 DLS Event Code: 17LLC test frame receivedThis message in

Configuring DLSw ServicesC-6 114063 Rev. AEstablishing DLSw/LLC ConnectionsFigure C-1 illustrates a sample dual-switch DLSw network and the networkpac

DLSw Troubleshooting114063 Rev. A C-7Figure C-1. Sample DLSw/LLC2 Network Connection SequenceToken RingHostRouter ATerminalLLC PU 2.0Router BEthernet#

Configuring DLSw ServicesC-8 114063 Rev. AReviewing the Network LogThis section describes the debug event messages that Router B logs when itestablish

DLSw Troubleshooting114063 Rev. A C-9The Host computer generates an SABME frame and sends it to Router A. RouterA returns UA and receiver not ready (R

Technical Support and Online Services114063 Rev. A xxiiiBay Networks Information ServicesBay Networks Information Services provide up-to-date support

Configuring DLSw ServicesC-10 114063 Rev. AFigure C-2. Sample DLSw/SDLC Network Connection SequenceToken RingHostRouter ATerminalSDLC PU 2.0Router B(C

DLSw Troubleshooting114063 Rev. A C-11Reviewing the Network Connection SequenceThis section describes the debug event messages that Router B (see Figu

Configuring DLSw ServicesC-12 114063 Rev. ARouter B generates and sends an XIDFRAME-T2 to Router A. Router A sends anXID-T2 (P) to the Host.The Host c

DLSw Troubleshooting114063 Rev. A C-13The remote router issues a DL_HALTED frame and sends it to the local router.# 20: 04/25/95 22:43:09 DEBUG S

Configuring DLSw ServicesC-14 114063 Rev. AExampleIf you are filtering events from Slots 3 and 4, you enterlog -fftwid -eDLS -s3 -s42. Make sure that t

DLSw Troubleshooting114063 Rev. A C-15If the sessions are not in an established state, do the following:a. Make sure all slots configured to run DLSw h

Configuring DLSw ServicesC-16 114063 Rev. AFrame rejects causesession failures.1. Endstation MAXINparameter smaller thanwfLlcInterfaceTw2. MTU receive

DLSw Troubleshooting114063 Rev. A C-17File transfers with largepackets are slow.1. DLSw uses more CPUthan SRB.2. The TCP window size istoo small, caus

Configuring DLSw ServicesC-18 114063 Rev. ACommon DLSw Non-ProblemsThe DLSw log often contains debug event messages that report conditions aboutproper

DLSw Troubleshooting114063 Rev. A C-19# 36: 04/25/95 22:43:17 INFO SLOT 1 TCP Event Code: 7TCP Error: 29 Opening 192.200.1.25,2065 - 192.200.4.

Configuring DLSw Servicesxxiv 114063 Rev. ASupport Source CDThis CD-ROM -- sent quarterly to all contracted customers -- is a complete BayNetworks Ser

Configuring DLSw ServicesC-20 114063 Rev. ATable C-5. DLSw Configuration TroubleshootingProblem Possible Cause Action/SolutionThe log file contains noD

DLSw Troubleshooting114063 Rev. A C-21The DLSw interface isDOWN; LLC interface is UP.1. DLSw interfaceconfigured on a different slotthan physical inter

Configuring DLSw ServicesC-22 114063 Rev. ADLSw/TCP connectionspartially come up.1. No peer configured2. Peer is not reachable1. Add a peer and its IPa

DLSw Troubleshooting114063 Rev. A C-23Table C-8. SNA TroubleshootingProblem Possible Cause Action/SolutionSNA stations cannotconnect over DLSw.1. Hos

Configuring DLSw ServicesC-24 114063 Rev. ATable C-9. NetBIOS TroubleshootingProblem Possible Cause Action/SolutionNetBIOS stations cannotconnect ove

DLSw Troubleshooting114063 Rev. A C-25Table C-10. LLC TroubleshootingProblem Possible Cause Action/SolutionFrame rejects causesession failures.1. End

Configuring DLSw ServicesC-26 114063 Rev. ASDLC does not connect tothe host computer.1. SDLC interface not active2. SDLC local devices notconfigured pr

DLSw Troubleshooting114063 Rev. A C-27Verifying the WAN CablingTable C-12 lists the specific WAN cables that ensure reliable DLSw connectivityover an S

114063 Rev. A Index-1Aactions, traffic filterDLSw prioritization, 6-27addingDLSw default MAC peer IP entries, 5-42DLSw default NetBIOS peer IP entries,

Technical Support and Online Services114063 Rev. A xxvInfoFACTSInfoFACTS is the Bay Networks free 24-hour fax-on-demand service. Thisautomated system

Configuring DLSw ServicesIndex-2 114063 Rev. AdeletingDLSw default MAC peer IP entries, 5-45DLSw default NetBIOS peer IP entries, 5-39DLSW from a node

Index114063 Rev. A Index-3DLSw local devices parametersCanureach Retries, 4-26, 5-56Canureach Retries2, 4-27, 5-57Canureach Timer, 4-25, 5-55Canureach

Configuring DLSw ServicesIndex-4 114063 Rev. AGgetting helpfrom a Bay Networks Technical ResponseCenter, xxvfrom the Support Source CD, xxivthrough Co

Index114063 Rev. A Index-5Ppackaging, 2-15configuring, 5-12Packaging Threshold parameter, 5-13Packaging Timeout parameter, 5-12parallel data pathsavoid

Configuring DLSw ServicesIndex-6 114063 Rev. ASSAP addressin a TEST frame, 2-7in an explorer frame, 2-6SAP parameter, 4-11, 5-30SAP Window parameter,

Index114063 Rev. A Index-7Wweighted dequeuing algorithm, 6-5wfDlsInterfaceEntry, C-14wfTcpConnEntry, C-14window size, SAP, 5-33World Wide Web, Bay Net

114063 Rev. A 1-1Chapter 1Data Link Switching OverviewThis chapter presents information about Data Link Switching (DLSw), as follows:• DLSw networking

Configuring DLSw Services1-2 114063 Rev. ADLSw Networking OverviewDLSw provides a standards-based mechanism for reliably transportingconnection-orient

Data Link Switching Overview114063 Rev. A 1-3DLSw runs on all Bay Networks router platforms using local and wide areanetwork facilities, including• LL

114063 Rev. A iiiBay Networks Software LicenseThis Software License shall govern the licensing of all software provided to licensee by Bay Networks (“

Configuring DLSw Services1-4 114063 Rev. A-- Fixed information, such as an organization’s software version-- Customized information, where one router

Data Link Switching Overview114063 Rev. A 1-5Figure 1-1. DLSw Single-Switch and Dual Switch-to-Switch NetworksBay Networks RouterToken RingBay Network

Configuring DLSw Services1-6 114063 Rev. ASingle-Switch ServicesDLSw single-switch services enable the router to perform link level conversion,while p

Data Link Switching Overview114063 Rev. A 1-7Figure 1-2. Bay Networks Single-Switch RouterThere are two important types of single-switch conversion:•

Configuring DLSw Services1-8 114063 Rev. AFigure 1-3 illustrates a network using adjacent routers, each performing single-switch conversion. Between s

Data Link Switching Overview114063 Rev. A 1-9DLSw dual-switch services are based on RFC 1795. This latest RFC defines theTCP/IP control protocol, Switc

Configuring DLSw Services1-10 114063 Rev. ASDLC SupportThe Bay Networks integrated SDLC support merges the low-speed SDLC trafficof an SNA network with

Data Link Switching Overview114063 Rev. A 1-11Figure 1-5. SDLC Conversion in a Single-Switch ConfigurationIn Figure 1-5, the SDLC clients appear to bot

Configuring DLSw Services1-12 114063 Rev. AFigure 1-6 illustrates a DLSw dual switch-to-switch network with SDLC clientsusing DLSw services at the loc

Data Link Switching Overview114063 Rev. A 1-13Primary SDLC SupportA Bay Networks router configured as a primary device on an SDLC link can• Control the

iv 114063 Rev. ABay Networks Software License(continued)9. Licensee shall not reverse assemble, reverse compile, or in any way reverse engineer the So

Configuring DLSw Services1-14 114063 Rev. ASecondary SDLC SupportA Bay Networks router acting as a secondary device on an SDLC link can• Support a sin

Data Link Switching Overview114063 Rev. A 1-15Figure 1-8. Secondary SDLC Routers in (a) Single- and (b) Dual-Switch DLSw NetworksFront-end processerHo

Configuring DLSw Services1-16 114063 Rev. ASecondary SDLC LimitationsBay Networks routers configured as secondary SDLC link stations function asPU 2.0

Data Link Switching Overview114063 Rev. A 1-17Figure 1-9. Locally Acknowledged Synchronous Pass-through in (a) Single- and(b) Dual-Switch DLSw Network

Configuring DLSw Services1-18 114063 Rev. AFrame Relay SupportFigure 1-10 illustrates the connection of a host through a Frame Relay network, ina confi

Data Link Switching Overview114063 Rev. A 1-19Bay Networks provides two ways to communicate directly with an SNA processor(such as an IBM 3745 or AS/4

Configuring DLSw Services1-20 114063 Rev. ABoundary Access NodeThe Boundary Access Node (BAN) is an IBM router enhancement. BAN refers tothe RFC 1490

Data Link Switching Overview114063 Rev. A 1-21Protocol PrioritizationYou can use protocol prioritization to transmit DLSw traffic before other traffic o

114063 Rev. A 2-1Chapter 2DLSw Implementation NotesThis chapter provides important information about the Bay Networks DLSwimplementation. You should r

114063 Rev. A vContentsConfiguring DLSw Services i About This GuideAudience ...

Configuring DLSw Services2-2 114063 Rev. ASelecting DLSw may enable the following subsystems:• A data link control subsystem, either LLC2 (for LAN med

DLSw Implementation Notes114063 Rev. A 2-3-- Converts the CANUREACH frame back to a TEST (POLL) frame.-- Forwards the TEST (POLL) frame to all interfa

Configuring DLSw Services2-4 114063 Rev. AFigure 2-1. DLSw-Capable Routers on an IP BackboneFor Frame Relay networks, you must configure the DLSw route

DLSw Implementation Notes114063 Rev. A 2-5Figure 2-2. Sample DLSw and SRB NetworkFor mixed topologies (SRB and non-SRB LANs), an end-to-end connection

Configuring DLSw Services2-6 114063 Rev. ACount the IP virtual ring as one ring in each source routing segment attached toyour TCP/IP network. You cou

DLSw Implementation Notes114063 Rev. A 2-7Figure 2-3. DLSw and Source Route Bridging on SRB CircuitsDLSw and Bridging ServicesThis section presents th

Configuring DLSw Services2-8 114063 Rev. AThe transparent bridge interface on the same circuit with DLSw never sees TESTframes that contain destinatio

DLSw Implementation Notes114063 Rev. A 2-9.Figure 2-5. Translation Bridge ServicesThe translation bridge service:• Supports communication between syst

Configuring DLSw Services2-10 114063 Rev. AFigure 2-6. Independent DLSw/Translation Bridge NetworkParallel Bridge and DLSw PathsIf a valid bridging pa

DLSw Implementation Notes114063 Rev. A 2-11Figure 2-7. DLSw Services in Parallel with a Source Routing BridgeMultiple DLSw Peers on a LANYou can config

vi 114063 Rev. AIntegrated SDLC Conversion ...1-10Primary SDLC Support .

Configuring DLSw Services2-12 114063 Rev. AMemory RequirementsDLSw provides buffering of LLC2 packets in single switch-mode, and additionalbuffering o

DLSw Implementation Notes114063 Rev. A 2-13TCP Max Retransmission TimeoutThe setting for the TCP Max Retransmission Timeout parameter determines thema

Configuring DLSw Services2-14 114063 Rev. ALLC2 Flow ControlThe LLC2 protocol interface provides a bidirectional window and a SAP creditallocation, th

DLSw Implementation Notes114063 Rev. A 2-15DLSw PackagingIn DLSw dual-switch configurations, packaging allows multiple DLSw frames(consisting of user d

114063 Rev. A 3-1Chapter 3DLSw Configuration OverviewThis chapter provides general information about configuring DLSw on BayNetworks routers, including•

Configuring DLSw Services3-2 114063 Rev. AFigure 3-1. DLSw Configuration Sequence for Token Ring/802.5 or Other SRB NetworksBegin ConfigurationAre you

DLSw Configuration Overview114063 Rev. A 3-3Figure 3-2. DLSw Configuration Sequence for Ethernet/802.3 or Frame Relay NetworkBegin ConfigurationAre you

Configuring DLSw Services3-4 114063 Rev. AAdding Single-Switch DLSw ServicesWhen configuring a DLSw single-switch network, DLSw is enabled on eachrelev

DLSw Configuration Overview114063 Rev. A 3-5Single-Switch Configuration RequirementsThis section describes the objects you define when you configure sing

114063 Rev. A viiChapter 3DLSw Configuration OverviewUsing Site Manager to Configure DLSw ...

Configuring DLSw Services3-6 114063 Rev. ADLSw SAP TableEvery data packet contains a one-byte destination SAP and source SAP. You canselect whether DL

DLSw Configuration Overview114063 Rev. A 3-7Figure 3-4. Sample Network with SAP Table DefinitionsRefer to Chapter 5 for more information about accessin

Configuring DLSw Services3-8 114063 Rev. AAdding Dual-Switch DLSw ServicesWhen configuring DLSw dual-switch services, DLSw is enabled only oninterfaces

DLSw Configuration Overview114063 Rev. A 3-9Dual-Switch Configuration RequirementsThis section describes the objects you define when you configure dual-s

Configuring DLSw Services3-10 114063 Rev. AKeepalive TimeThe DLSw Keepalive Time parameter ensures that the TCP connection to aremote router is active

DLSw Configuration Overview114063 Rev. A 3-11The router uses this IP address to establish the TCP sessions between peers in aDLSw network. Generally,

Configuring DLSw Services3-12 114063 Rev. A-- For Slot 4, note that an IP address cannot be assigned to an SDLCinterface, and no IP address is assigne

DLSw Configuration Overview114063 Rev. A 3-13You enter slot information in the DLSw Slot IP Table during the initialconfiguration procedure. Refer to C

Configuring DLSw Services3-14 114063 Rev. AOnce a router knows that a DLSw peer can reach a specific system, the router canaddress frames directly to t

DLSw Configuration Overview114063 Rev. A 3-15Unconfigured PeersA Bay Networks router running DLSw can respond to requests from remoterouters to initiat

viii 114063 Rev. ASetting the DLSw Global Parameters ...4-4Specifying Source

Configuring DLSw Services3-16 114063 Rev. AFigure 3-7. Sample Network with Peer IP Table DefinitionsConfiguring SDLC Lines and DevicesThis section descr

DLSw Configuration Overview114063 Rev. A 3-17• Clock Source• Internal Clock Speed• Sync Line CodingFor information on configuring the SDLC line paramet

Configuring DLSw Services3-18 114063 Rev. AFor each local device that you add, Site Manager creates a corresponding SDLClink station, which is how SDL

DLSw Configuration Overview114063 Rev. A 3-19There is one Frame Relay Mapping table for each physical Frame Relay interface.Each entry must have a val

Configuring DLSw Services3-20 114063 Rev. ADynamically Learned Remote SystemsBay Networks routers cache (dynamically learn) the MAC address and NetBIO

DLSw Configuration Overview114063 Rev. A 3-21In the local router’s Default NetBIOS Peer IP Table, enter the IP address of theremote peer associated wi

Configuring DLSw Services3-22 114063 Rev. ADLSw prioritization uses the following parameters:• Bandwidth Allocation• Max Queue Buffers• Max Queue Wind

114063 Rev. A 4-1Chapter 4Starting DLSwThis chapter describes how to enable DLSw services. It assumes that you haveread Configuring Routers and complet

Configuring DLSw Services4-2 114063 Rev. AStarting DLSw the First TimeWhen you first start DLSw, you use Site Manager to edit parameters that DLSwrequi

Starting DLSw114063 Rev. A 4-3SDLC • SDLC Line Parameters• DLSw Global Parameters• DLSw Slot Configuration/Add• Local DeviceConfiguration/Add• DLSw Peer

114063 Rev. A ixDeleting a DLSw Default MAC Peer IP Table Entry ...5-45Editing DLSw Local Devices Paramete

Configuring DLSw Services4-4 114063 Rev. ASetting the DLSw Global ParametersAfter you select DLSw from the Select Protocols window, the DLSw GlobalPar

Starting DLSw114063 Rev. A 4-5 Parameter: IP Virtual Ring Default: None Range: 1 to 4095 Function: Specifies a virtual ring number for the TCP/IP netwo

Configuring DLSw Services4-6 114063 Rev. AAdding Source Routing ParametersWhen you add DLSw to a Token Ring circuit, you first set the source routinggl

Starting DLSw114063 Rev. A 4-7Figure 4-4. Add DLSw Slot Configuration Window2. Enter the appropriate slot value and its IP address.Use the following pa

Configuring DLSw Services4-8 114063 Rev. A Parameter: IP Address Default: None Options: Any IP address specified in dotted decimal notation Function: S

Starting DLSw114063 Rev. A 4-9Figure 4-6. Add DLSw Peer Configuration Window2. Enter the appropriate peer IP address.Use the following parameter descri

Configuring DLSw Services4-10 114063 Rev. AAdding a Service Access Point (SAP)The DLSw SAP Configuration window (Figure 4-7) displays SAP configurationi

Starting DLSw114063 Rev. A 4-11Figure 4-8. Add DLSw SAP Configuration Window2. Enter the appropriate SAP value.Refer to the parameter description that

Configuring DLSw Services4-12 114063 Rev. AAdding SDLC Line Parameters and Local DevicesTo configure DLSw on synchronous interfaces (COM1, COM2, and so

Starting DLSw114063 Rev. A 4-13 Parameter: Clock Source Default: Internal Options: External|Internal Function: Identifies whether the router provides c