Avaya Configuring DLSw Services User Manual

Part No. 303523-A Rev. 00October 1998BayRS Version 13.00Site Manager Software Version 7.00 BCC Version 4.05 Configuring DLSw Services

x303523-A Rev. 00Chapter 6 Using DLSw PrioritizationProtocol Prioritization Overview ...

Configuring DLSw Services4-6303523-A Rev. 00Figure 4-1. DLSw Basic Global Parameters WindowFollowing are descriptions of the basic global parameters.

Starting DLSw303523-A Rev. 004-7 Parameter: DLSw Virtual Ring ID Default: None Options: Any valid, unassigned ring number from 1 to 4095 (0x001 to 0x

Configuring DLSw Services4-8303523-A Rev. 00 Parameter: DLSw RFC Version Default: RFC1434 Options: RFC1434 | RFC1795 | V2.0 (Unicast) | RFC2166 (Multi

Starting DLSw303523-A Rev. 004-9 Adding Source Routing Parameters for Token RingWhen you add DLSw to a Token Ring circuit, you first set the source ro

Configuring DLSw Services4-10303523-A Rev. 00Adding Source Routing Parameters for Frame Relay BANWhen you configure DLSw over Frame Relay BAN, the Fra

Starting DLSw303523-A Rev. 004-11 Figure 4-4. DLSw Basic Interface Parameters WindowTo add an IP address to a DLSw slot:1.Enter the IP address of the

Configuring DLSw Services4-12303523-A Rev. 00Setting the DLSw Basic Interface Parameters for SRBIf you are configuring a DLSw slot for a Token Ring or

Starting DLSw303523-A Rev. 004-13 Figure 4-6. LLC2 Frame Relay Mappings WindowFigure 4-7. LLC2 Frame Relay Mapping Add Window

Configuring DLSw Services4-14303523-A Rev. 004.Specify the DLCI, Remote MAC, and Local MAC parameters, as described next.5.Click on OK. The Configurat

Starting DLSw303523-A Rev. 004-15 Parameter: Local MAC Default: None Options: Standard MSB Token Ring MAC addresses Function: Provides the local MAC

303523-A Rev. 00xiAppendix B Criteria for DLSw PrioritizationPredefined DLSw Criteria ...

Configuring DLSw Services4-16303523-A Rev. 002.Edit the Clock Source, Internal Clock Speed, Sync Line Coding, Cable Type, and RTS Enable parameters, d

Starting DLSw303523-A Rev. 004-17 Parameter: Internal Clock Speed Default: 19200 KB Options: 1200 B| 2400 B | 4800 B | 7200 B | 9600 B |19200 B | 32

Configuring DLSw Services4-18303523-A Rev. 00 Parameter: Sync Line Coding Default: NRZ Options: NRZ | NRZI | NRZI Mark Function: Sets the same line co

Starting DLSw303523-A Rev. 004-19 Parameter: RTS Enable Default: Disable Options: Enable | Disable Function: Controls the toggling of the Request to

Configuring DLSw Services4-20303523-A Rev. 00Figure 4-10. DLS Local Device Configuration Window6.From the DLS Local Device Configuration window (Figur

Starting DLSw303523-A Rev. 004-21 Figure 4-11. Local Device Configuration WindowFollowing are descriptions of the local device configuration parameter

Configuring DLSw Services4-22303523-A Rev. 00 Parameter: DLSw Mode Default: Primary Options: Primary | Secondary PP | Secondary MP Function: Specifies

Starting DLSw303523-A Rev. 004-23 Parameter: PU Name Default: None Options: Any valid, 8-byte ASCII name Function: Specifies the name of the adjacent

Configuring DLSw Services4-24303523-A Rev. 00 Parameter: IDBLOCK Default: None Options: Any 3-digit hexadecimal value Function: Specifies the block nu

Starting DLSw303523-A Rev. 004-25 Table 4-2. IDBLOCK Numbers for Switched PUsDevice IDBLOCK NumberNPSI 0033770 0043650/3680 0056100/3790 006NTO, 3767

Configuring DLSw Services4-26303523-A Rev. 00 Parameter: IDNUM Default: None Options: Any 5-digit hexadecimal value from 00000 to FFFFF (for T1.0 or T

Starting DLSw303523-A Rev. 004-27 Parameter: Source (Virtual) MAC (hex) Default: None Options: Any standard MSB Token Ring MAC address Function: Spec

Configuring DLSw Services4-28303523-A Rev. 00 Parameter: Destination (Host) MAC (hex) Default: None Options: Any standard MSB Token Ring MAC address F

Starting DLSw303523-A Rev. 004-29 Parameter: MAXDATA Default: 2057 Options: 265 | 521 | 1033 | 2057 Function: Specifies the maximum frame size that S

Configuring DLSw Services4-30303523-A Rev. 00 Parameter: Canureach Timer2 Default: 30 Range: 0 to 3600 Function: Specifies the time interval (in seco

Starting DLSw303523-A Rev. 004-31 Parameter: Link Station Timer Default: 30 Range: 0 to 3600 Function: Sets the time interval (in seconds) after whi

Configuring DLSw Services4-32303523-A Rev. 00 Parameter: SDLC Transmit Credit Default: 10 Range: 0 to 200 Function: Specifies the maximum number of fr

Starting DLSw303523-A Rev. 004-33 Configuring the DLSw/APPN Boundary FunctionConfiguring the DLSw boundary function involves the following tasks:1.Con

Configuring DLSw Services4-34303523-A Rev. 001.Click on Protocols.The Protocols menu opens.2.Click on DLSw.The DLSw window opens.3.Click on Boundary F

Starting DLSw303523-A Rev. 004-35 The Global Protocols window opens.3.Click on VCCT.The VCCT menu opens.4.Click on Interfaces.The VCCT Circuits window

303523-A Rev. 00xiiiFiguresFigure 1-1. Addressing a Message to an IP Multicast Group ...1-8Figure 1-2. Receiving a M

Configuring DLSw Services4-36303523-A Rev. 00Site Manager asks: “Would you like to configure Adjacent Link Stations on this port?”10.Click on Cancel.Y

Starting DLSw303523-A Rev. 004-37 The following procedure shows you how to add DLSw IP multicast support to a router that is already running DLSw:Begi

Configuring DLSw Services4-38303523-A Rev. 00 Parameter: Multicast IP Address Default: 224.0.10.0 Options: Any valid IP address specified in dotted-de

Starting DLSw303523-A Rev. 004-39 Parameter: Backup Config Default: No Options: Yes | No Function: Enables the parameters that allow you to configure

Configuring DLSw Services4-40303523-A Rev. 00 Parameter: Backup Max Up Time Default: 0 Options: 0 to 999999 Function: Specifies the maximum time (in s

Starting DLSw303523-A Rev. 004-41 Parameter: Backup Start Time (hhmm) Default: 1 Options: 0 to 2400 Function: Specifies the start time when a configu

303523-A Rev. 005-1 Chapter 5Editing DLSw ParametersThis chapter describes how to edit DLSw basic and advanced global and interface parameters, as wel

Configuring DLSw Services5-2303523-A Rev. 00You may be required to customize the LLC2, TCP/IP, SDLC, or SRB parameters as well, since these support DL

Editing DLSw Parameters303523-A Rev. 005-3 Figure 5-1. Configuration Manager WindowEditing DLSw Basic Global ParametersTo edit DLSw basic global param

xiv303523-A Rev. 00Figure 4-1. DLSw Basic Global Parameters Window ...4-6Figure 4-2. DLSw Basic Global

Configuring DLSw Services5-4303523-A Rev. 00Figure 5-2. DLSw Basic Global Parameters Window2.Edit the parameters that you want to change.3.Click on OK

Editing DLSw Parameters303523-A Rev. 005-5 DLSw Basic Global Parameter DescriptionsThis section describes the DLSw global parameters that you can cust

Configuring DLSw Services5-6303523-A Rev. 00 Parameter: DLSw Reject Unconfigured Peers Default: Accept Options: Accept | Reject Function: Specifies wh

Editing DLSw Parameters303523-A Rev. 005-7 Parameter: DLSw Peer IP Address (add only) Default: 0.0.0.0 Options: Any valid, 32-bit IP unicast address

Configuring DLSw Services5-8303523-A Rev. 00If you are configuring a DLSw slot for a Token Ring or Frame Relay BAN network, edit the SR Interface Ring

Editing DLSw Parameters303523-A Rev. 005-9 Editing the DLSw Advanced Global ParametersTo edit DLSw advanced global parameters, begin at the Configurat

Configuring DLSw Services5-10303523-A Rev. 00 Parameter: Enable Default: Enable Options: Enable | Disable Function: Globally enables or disables the s

Editing DLSw Parameters303523-A Rev. 005-11 Parameter: TCP Window Size Default: 8000 Range: 5000 to 64000 (octets) Function: Specifies (in octets) th

Configuring DLSw Services5-12303523-A Rev. 00 Parameter: DLSw IP Virtual Ring Default: None Options: Any valid, unassigned ring number from 1 to 4095

Editing DLSw Parameters303523-A Rev. 005-13 Parameter: Max Slot Sessions Default: 200 Range: 1 to 10000 Function: Specifies the maximum number of LLC

303523-A Rev. 00xvFigure 5-25. MAC Addresses in the DLSw MAC Configuration Window ...5-54Figure 5-26. Saving a DLSw Default MAC Peer

Configuring DLSw Services5-14303523-A Rev. 00 Parameter: MAC Cache Age Default: 300 Options: Any number of seconds greater than 20 Function: Specifies

Editing DLSw Parameters303523-A Rev. 005-15 Parameter: Reject Unconfigured Peers Default: Accept Options: Accept | Reject Function: Specifies whether

Configuring DLSw Services5-16303523-A Rev. 00 Parameter: Maximum Package Size Default: 1532 Range: 0 to 2147483647 Function: Specifies the maximum am

Editing DLSw Parameters303523-A Rev. 005-17 Parameter: Packaging Threshold Default: 20 Range: 0 to 100 Function: Specifies the percentage of the DLSw

Configuring DLSw Services5-18303523-A Rev. 00 Parameter: Initial Pacing Window Default: 5 Range: 5 to 100 Function: Specifies the initial number of re

Editing DLSw Parameters303523-A Rev. 005-19 Parameter: KeepAlive Time (sec) Default: 60 Range: 0 to 2147483647 Function: The TCP KeepAlive Time param

Configuring DLSw Services5-20303523-A Rev. 00 Parameter: KeepAlive Retries (sec) Default: 4 Options: 0 to 99 Function: TCP determines a lost connectio

Editing DLSw Parameters303523-A Rev. 005-21 Parameter: NetBIOS Fallback Time (sec) Default: 180 Options: 0 to 2147483647 Function: Specifies the peri

Configuring DLSw Services5-22303523-A Rev. 00 Parameter: TCP Inact Method Default: Circuits Options: Never | Circuits | Data Function: Specifies the t

Editing DLSw Parameters303523-A Rev. 005-23 Figure 5-5. DLSw Interface Configuration Window2.Select an interface from the list. The interfaces appear

Configuring DLSw Services5-24303523-A Rev. 00 Parameter: Enable Default: Enable Options: Enable | Disable Function: Enables or disables Data Link Swit

Editing DLSw Parameters303523-A Rev. 005-25 Enabling a DLSw Interface Using the Edit Circuits FunctionYou can also access the Enable parameter of a DL

Configuring DLSw Services5-26303523-A Rev. 00Figure 5-7. Edit Connector WindowIn either case, the Circuit Definition window appears (Figure 5-8). Figu

Editing DLSw Parameters303523-A Rev. 005-27 Follow these steps to enable or disable a DLSw interface:1.Select Protocols > DLSw > Interfaces. The

Configuring DLSw Services5-28303523-A Rev. 00• If you selected a connector to invoke the Edit Connector window (refer to Figure 5-7), the Configuratio

Editing DLSw Parameters303523-A Rev. 005-29 Descriptions of the Peer IP Table parameters follow. Parameter: Transport Type Default: Unknown Options: T

Configuring DLSw Services5-30303523-A Rev. 00 Parameter: Backup Config Default: No Options: Yes | No Function: Enables the parameters that allow you

Editing DLSw Parameters303523-A Rev. 005-31 Parameter: Backup Max Up Time Default: 0 Options: 0 to 999999 Function: Specifies the maximum time (in se

Configuring DLSw Services5-32303523-A Rev. 00 Parameter: Backup Start Time (hhmm) Default: 1 Options: 0 to 2400 Function: Specifies the start time whe

Editing DLSw Parameters303523-A Rev. 005-33 2.Enter a valid IP address for the Peer IP Address parameter.Figure 5-11. Add DLSw Peer Configuration Wind

303523-A Rev. 00xviiTablesTable 4-1. DLSw Startup Screens and Required Parameters ...4-2Table 4-2. IDBLOCK Numbers for

Configuring DLSw Services5-34303523-A Rev. 00 Parameter: Peer IP Address Default: None Options: Any valid, 32-bit IP unicast address in the form netwo

Editing DLSw Parameters303523-A Rev. 005-35 Parameter: Transport Type Default: Unknown Options: TCP | UDP | Unknown Function: Specifies the transport

Configuring DLSw Services5-36303523-A Rev. 00To delete a DLSw Peer IP Table entry, start at the DLSw Peer Configuration window (refer to Figure 5-10):

Editing DLSw Parameters303523-A Rev. 005-37 Figure 5-12. DLSw Slot Configuration WindowAdding a DLSw Slot IP Table EntryTo add a new DLSw Slot IP Tabl

Configuring DLSw Services5-38303523-A Rev. 002.Type a value for the Slot parameter.3.Type the IP address of an interface configured earlier on the rou

Editing DLSw Parameters303523-A Rev. 005-39 Editing a DLSw Slot IP Table EntryYou can edit only the IP Address for TCP Connection parameter in an exis

Configuring DLSw Services5-40303523-A Rev. 00Following is a description of the IP Address for TCP Connection parameter. Parameter: IP Address for TCP

Editing DLSw Parameters303523-A Rev. 005-41 1.Select the Slot IP Table entry.2.Click on Delete.The system software deletes the entry you selected, and

Configuring DLSw Services5-42303523-A Rev. 00Figure 5-16. SAP Addresses in the DLSw SAP Configuration WindowAdding a DLSw SAP Table EntryTo add a new

Editing DLSw Parameters303523-A Rev. 005-43 2.Type the 0x prefix and then enter a hexadecimal value for the SAP parameter.Valid SAP addresses include

xviii303523-A Rev. 00Table C-7. DLSw Interface Troubleshooting ... C-23Table C-8. TCP Troubl

Configuring DLSw Services5-44303523-A Rev. 00To edit the SAP Window parameter associated with a particular DLSw SAP, begin at the Configuration Manage

Editing DLSw Parameters303523-A Rev. 005-45 Parameter: SAP Window Default: 10 Range: 6 to 200 Function: Specifies the maximum number of unacknowledge

Configuring DLSw Services5-46303523-A Rev. 00Figure 5-19. Deleting a SAP Table Entry4.Click on Done.This completes the deletion procedure and returns

Editing DLSw Parameters303523-A Rev. 005-47 Figure 5-20. DLSw NetBIOS Peer Configuration WindowClicking on a name in the list window causes the DLSw P

Configuring DLSw Services5-48303523-A Rev. 00Figure 5-21. DLSw NetBIOS Configuration Window2.Type the name of the remote NetBIOS client or server.This

Editing DLSw Parameters303523-A Rev. 005-49 Parameter: NetBIOS Name Default: None Options: Any valid NetBIOS name Function: Specifies the name of the

Configuring DLSw Services5-50303523-A Rev. 00Editing a DLSw Default NetBIOS Peer IP Table EntryYou can edit only the Default NetBIOS Peer IP Address p

Editing DLSw Parameters303523-A Rev. 005-51 Following is a description of the Default NetBIOS Peer IP Address parameter. Parameter: Default NetBIOS Pe

Configuring DLSw Services5-52303523-A Rev. 00 Figure 5-23. Deleting a DLSw Default NetBIOS Peer IP Table Entry2.Click on Delete. The system deletes th

Editing DLSw Parameters303523-A Rev. 005-53 The DLSw MAC Peer Configuration window appears (Figure 5-24), showing a list of Token Ring/802.5 MAC addre

303523-A Rev. 00xix PrefaceThis guide describes Data Link Switching (DLSw) and what you do to start and customize DLSw services on a Bay Networks® rou

Configuring DLSw Services5-54303523-A Rev. 00Adding a DLSw Default MAC Peer IP Table EntryTo add a new DLSw Default MAC Peer IP Table entry, begin at

Editing DLSw Parameters303523-A Rev. 005-55 Parameter: MAC Address Default: None Options: Any valid, 48-bit MAC address expressed in hexadecimal nota

Configuring DLSw Services5-56303523-A Rev. 004.Click on Apply.This saves your change to the router configuration file.Figure 5-26. Saving a DLSw Defau

Editing DLSw Parameters303523-A Rev. 005-57 Parameter: Default MAC Peer IP Address Default: None Options: Any valid, 32-bit IP address in the form ne

Configuring DLSw Services5-58303523-A Rev. 00The system software deletes the entry you select, and removes the entry from the list.3.Click on Done.The

Editing DLSw Parameters303523-A Rev. 005-59 Figure 5-28. DLS Local Device Configuration Window2.Click on the local device whose parameters you want to

Configuring DLSw Services5-60303523-A Rev. 00• To add a local device, start at the Configuration Manager window and select the connector to which you

Editing DLSw Parameters303523-A Rev. 005-61 DLSw Local Devices Parameter DescriptionsThis section describes the DLSw Local Devices parameters that you

Configuring DLSw Services5-62303523-A Rev. 00 Parameter: DLSw Mode Default: Primary Options: Primary | Secondary PP | Secondary MP Function: Specifies

Editing DLSw Parameters303523-A Rev. 005-63 Parameter: IDBLOCK Default: None Options: Any 3-digit hexadecimal value Function: Specifies the block num

ii303523-A Rev. 004401 Great America Parkway 8 Federal StreetSanta Clara, CA 95054 Billerica, MA 01821Copyright © 1998 Bay Networks, Inc.All rights re

Configuring DLSw Servicesxx303523-A Rev. 00Text ConventionsThis guide uses the following text conventions:angle brackets (< >) Indicate that you

Configuring DLSw Services5-64303523-A Rev. 00 Parameter: IDNUM Default: None Options: Any 5-digit hexadecimal value from 00000 to FFFFF (for T1.0 or T

Editing DLSw Parameters303523-A Rev. 005-65 Parameter: XID Format Default: None Options: FIXED | VARIABLE1 | VARIABLE2 Function: Specifies the forma

Configuring DLSw Services5-66303523-A Rev. 00 Parameter: Source (Virtual) SAP (hex) Default: 0x4 Range: 0x01 to 0xFE Function: Specifies the source SA

Editing DLSw Parameters303523-A Rev. 005-67 Parameter: MAXOUT Default: 7 Range: 1 to 127 Function: Controls the maximum number of consecutive frames

Configuring DLSw Services5-68303523-A Rev. 00 Parameter: Canureach Retries Default: 4294967295 Range: 0 to 4294967295 Function: Specifies the number o

Editing DLSw Parameters303523-A Rev. 005-69 Parameter: Canureach Retries2 Default: 0 Range: 0 to 4294967295 Function: Specifies the number of times a

Configuring DLSw Services5-70303523-A Rev. 00 Parameter: Link Station Retries Default: 4294967295 Range: 0 to 4294967295 Function: Specifies the maxim

Editing DLSw Parameters303523-A Rev. 005-71 Parameter: Enable XID PassThru Default: Disable Options: Enable | Disable Function: Specifies whether XID

Configuring DLSw Services5-72303523-A Rev. 00The DLSw Multicast Configuration window opens.2.Select the IP multicast entry you want to edit.3.Edit the

Editing DLSw Parameters303523-A Rev. 005-73 Parameter: Slot Default: Depends on the number of slots in the router. For a BLN, the default is 00000. O

Preface303523-A Rev. 00xxi Acronymsitalic text Indicates file and directory names, new terms, book titles, and variables in command syntax description

Configuring DLSw Services5-74303523-A Rev. 00 Parameter: Backup IP Address Default: 0.0.0.0 Options: Any valid, 32-bit IP address of the form network.

Editing DLSw Parameters303523-A Rev. 005-75 Parameter: Backup Hold Down Time (sec) Default: 120 Options: 0 to 2147483647 Function: Specifies the time

Configuring DLSw Services5-76303523-A Rev. 00 Parameter: Backup End Time (hhmm) Default: 2400 Options: 1 to 2400 Function: Specifies the end time when

303523-A Rev. 006-1 Chapter 6Using DLSw PrioritizationThis chapter provides guidelines for implementing DLSw TCP-level prioritization. Following an ov

Configuring DLSw Services6-2303523-A Rev. 00With protocol prioritization, the router sorts traffic into queues according to priority filters that you

Using DLSw Prioritization303523-A Rev. 006-3 DLSw Priority QueuesThis section describes how DLSw protocol prioritization works, and defines DLSw terms

Configuring DLSw Services6-4303523-A Rev. 00The router holds packets in the assigned priority queue according to how you configure DLSw protocol prior

Using DLSw Prioritization303523-A Rev. 006-5 The Dequeue ListThree factors determine a packet’s weighted score:• Size of the packet• Percent of bandwi

Configuring DLSw Services6-6303523-A Rev. 00Figure 6-1. Weighted Bandwidth Allocation

Using DLSw Prioritization303523-A Rev. 006-7 Tuning DLSw Protocol PrioritizationThis section explains how congestion control and queue depth affect DL

Configuring DLSw Servicesxxii303523-A Rev. 00Bay Networks Technical PublicationsYou can now print Bay Networks technical manuals and release notes fre

Configuring DLSw Services6-8303523-A Rev. 00Configuring Default Priority QueuesYou configure the default behavior of DLSw protocol prioritization usin

Using DLSw Prioritization303523-A Rev. 006-9 Enabling the Default Queues for Configured and Unconfigured PeersBegin by displaying the DLSw Protocol Pr

Configuring DLSw Services6-10303523-A Rev. 00Figure 6-3. Enabling Protocol Prioritization on DLSw Peers3.Select ENABLED.4.Click on OK.The Global DLSw

Using DLSw Prioritization303523-A Rev. 006-11 Figure 6-5. Enabling Protocol Prioritization for All DLSw Peers• To customize the default queue configur

Configuring DLSw Services6-12303523-A Rev. 00Figure 6-6. Global DLSw PP Parameters/Defaults Window2.Edit the parameters that you want to change, using

Using DLSw Prioritization303523-A Rev. 006-13 Parameter: Protocol Priority (PP) Default: Disabled Options: Enabled | Disabled Function: Toggles proto

Configuring DLSw Services6-14303523-A Rev. 00 Parameter: Max Queue Buffers for Unconfig Peers Default: 50 Range: 10 to 2147483647 Function: Specifies

Using DLSw Prioritization303523-A Rev. 006-15 Configuring Peer-Specific Priority QueuesYou create the priority queue configuration for all configured

Configuring DLSw Services6-16303523-A Rev. 00Figure 6-7. Peer Queue Configuration WindowThe Peer Queue Configuration window summarizes the priority qu

Using DLSw Prioritization303523-A Rev. 006-17 Figure 6-8. Add/Edit/Delete Queues Window4.Click on Add.The Add Queue window appears (Figure 6-9).Figure

Preface303523-A Rev. 00xxiii You can purchase Bay Networks documentation sets, CDs, and selected technical publications through the Bay Networks Colla

Configuring DLSw Services6-18303523-A Rev. 006.Enter a bandwidth.The bandwidth for Q0 must be greater than 0. You can assign any percentage between 0

Using DLSw Prioritization303523-A Rev. 006-19 Figure 6-11. Peer Queue Configuration Window with Both Default and Peer-Specific ConfigurationsEnabling

Configuring DLSw Services6-20303523-A Rev. 00Customizing Specific DLSw Peer QueuesOnce you create and enable peer-specific queues, the DLSw peer in qu

Using DLSw Prioritization303523-A Rev. 006-21 Peer Queue Configuration Parameter DescriptionsUse the following descriptions as guidelines when you con

Configuring DLSw Services6-22303523-A Rev. 00 Parameter: Max Queue Size Default: 16000 Range: 5000 to 2147483647 Function: Specifies the maximum size

Using DLSw Prioritization303523-A Rev. 006-23 Figure 6-13. DLS Priority/Outbound Filters WindowThis window shows any existing outbound traffic filters

Configuring DLSw Services6-24303523-A Rev. 00Figure 6-14. Filter Template Management WindowThe software includes sample templates for filtering NetBIO

Using DLSw Prioritization303523-A Rev. 006-25 4.Click on Create to make a new template, or select an existing template and click on Edit.The Create DL

Configuring DLSw Services6-26303523-A Rev. 00Refer to Appendix B for information about the DLSw outbound traffic filter criteria.7.Select Action >

Using DLSw Prioritization303523-A Rev. 006-27 Figure 6-17. Queue Number Window8.Enter the queue number.DLSw will send traffic that meets this filter’s

Configuring DLSw Services6-28303523-A Rev. 00Figure 6-18. Create Filter Window12.Type a name for the filter in the Filter Name box.13.Highlight All DL

Using DLSw Prioritization303523-A Rev. 006-29 Figure 6-19. DLS Priority/Outbound Filters Window with Configured FIlters

Configuring DLSw Services6-30303523-A Rev. 00Using the DLSw Peer Configuration WindowIn addition to using the menu selections shown in this section, y

Using DLSw Prioritization303523-A Rev. 006-31 Sample Templates for DLSw Protocol PrioritizationIn addition to using the Configuration Manager screens

303523-A Rev. 00A-1 Appendix ADLSw Default SettingsTables A-1 to A-11 list the default settings for DLSw parameters. Use the Configuration Manager to

Configuring DLSw ServicesA-2303523-A Rev. 00Table A-3. DLSw Advanced Global Parameters Parameter DefaultEnable EnableTCP Window Size 8000 octetsIP Vir

DLSw Default Settings303523-A Rev. 00A-3 Table A-4. DLSw Advanced Interface Parameters Parameter DefaultEnable EnableDLSw Mode PrimaryTable A-5. DLSw

Configuring DLSw ServicesA-4303523-A Rev. 00Table A-7. DLSw SAP ParametersParameter DefaultSAP Window 10 framesSAP 0x004, 0x008, 0x00CTable A-8. DLSw

DLSw Default Settings303523-A Rev. 00A-5 Table A-10. DLSw Local Devices ParametersParameter DefaultDisable EnableLink Station Address (hex) NoneDLSw M

303523-A Rev. 001-1 Chapter 1Data Link Switching OverviewThis chapter presents information about Data Link Switching (DLSw), as follows:• DLSw Network

Configuring DLSw ServicesA-6303523-A Rev. 00Table A-11. DLSw Protocol Prioritization Parameters Parameter DefaultProtocol Priority DisabledPP for Unco

303523-A Rev. 00B-1 Appendix BCriteria for DLSw PrioritizationThis appendix includes both the DLSw predefined criteria that the Configuration Manager

Configuring DLSw ServicesB-2303523-A Rev. 00Predefined DLSw CriteriaYou configure outbound filters for DLSw traffic based on the predefined criteria l

Criteria for DLSw Prioritization303523-A Rev. 00B-3 Table B-2. DLSw Reference Points for FID2 FramesCriteria (FID2) Reference Point Offset (bits) Leng

Configuring DLSw ServicesB-4303523-A Rev. 00Specifying MAC Address RangesWhen you create a filter that includes a source or destination MAC Address cr

Criteria for DLSw Prioritization303523-A Rev. 00B-5 Source Routing Bridge Functional MAC AddressesFunctional MAC addresses are destination MAC address

Configuring DLSw ServicesB-6303523-A Rev. 00Table B-6. SAP CodesDescription SAP CodeXID or TEST 00Individual Sublayer Mgmt 02Group Sublayer Mgmt 03SNA

303523-A Rev. 00C-1 Appendix CTroubleshooting DLSwThis appendix provides the following information about diagnosing and troubleshooting DLSw networks,

Configuring DLSw ServicesC-2303523-A Rev. 00For information about viewing events and messages using Site Manager or a compatible third-party network m

Troubleshooting DLSw303523-A Rev. 00C-3 Table C-2 shows more detailed information about the enabling bits shown in Table C-1.Using and Decoding the DL

Configuring DLSw Services1-2303523-A Rev. 00DLSw Networking OverviewDLSw provides a standards-based mechanism for reliably transporting connection-ori

Configuring DLSw ServicesC-4303523-A Rev. 00Table C-3 lists the DLSw state names and numbers. Table C-4 lists the DLSw events and numbers. Refer to th

Troubleshooting DLSw303523-A Rev. 00C-5 Sample Log EntriesThis section describes some common sample DLSw event entries that may appear in the log file

Configuring DLSw ServicesC-6303523-A Rev. 00Event Code 16# 15: 04/25/95 22:43:01 DEBUG SLOT 1 DLS Event Code: 16State change in connect_conf, c

Troubleshooting DLSw303523-A Rev. 00C-7 SSP XID frame rcvd in LLC -- The type of frame received (XID) and where it was received (LLC, SDLC).conn (3092

Configuring DLSw ServicesC-8303523-A Rev. 00-- Converts the TEST (RESPONSE) packet into a DLSw ICANREACH frame.-- Forwards the ICANREACH to the origin

Troubleshooting DLSw303523-A Rev. 00C-9 Figure C-1. Sample DLSw/LLC2 Network Connection Sequence (RFC 1434)Token RingHostRouter ATerminalLLC PU 2.0Rou

Configuring DLSw ServicesC-10303523-A Rev. 00Reviewing the Network LogThis section describes the debug event messages that Router B logs when it estab

Troubleshooting DLSw303523-A Rev. 00C-11 The host computer generates an SABME frame and sends it to Router A. Router A returns UA and receiver not rea

Configuring DLSw ServicesC-12303523-A Rev. 00Figure C-2. Sample DLSw/SDLC Network Connection SequenceToken RingHostRouter ATerminalSDLC PU 2.0Router B

Troubleshooting DLSw303523-A Rev. 00C-13 Reviewing the Network Connection SequenceThis section describes the debug event messages that Router B (see F

Data Link Switching Overview303523-A Rev. 001-3 DLSw runs on all Bay Networks router platforms using local and wide area network facilities, including

Configuring DLSw ServicesC-14303523-A Rev. 00Router B generates and sends an XIDFRAME-T2 to Router A. Router A sends an XID-T2 (P) to the host.The hos

Troubleshooting DLSw303523-A Rev. 00C-15 The remote router issues a DL_HALTED frame and sends it to the local router.# 20: 04/25/95 22:43:09 DEBUG

Configuring DLSw ServicesC-16303523-A Rev. 00For example, f you are filtering events from Slots 3 and 4, enterlog -fftwid -eDLS -s3 -s42.Make sure tha

Troubleshooting DLSw303523-A Rev. 00C-17 If the sessions are not in an established state, do the following:• Make sure all slots configured to run DLS

Configuring DLSw ServicesC-18303523-A Rev. 00Frame rejects cause session failures.Endstation MAXIN parameter smaller than wfLlcInterfaceTwMTU received

Troubleshooting DLSw303523-A Rev. 00C-19 File transfers with large packets are slow.DLSw uses more CPU than SRB.The TCP window size is too small, caus

Configuring DLSw ServicesC-20303523-A Rev. 00Common DLSw NonproblemsThe DLSw log often contains debug event messages that report conditions about prop

Troubleshooting DLSw303523-A Rev. 00C-21 TCP open error 29The DLSw peer connections through TCP cannot be activated until the source (local) IP interf

Configuring DLSw ServicesC-22303523-A Rev. 00DLSw Troubleshooting TablesTables C-5 to C-11 provide the following troubleshooting information:• DLSw co

Troubleshooting DLSw303523-A Rev. 00C-23 Table C-7. DLSw Interface TroubleshootingProblem Possible Cause Action/SolutionThe DLSw interface state is DO

Configuring DLSw Services1-4303523-A Rev. 00• Capabilities exchange, allowing routers to exchange resource information about each other. Capabilities

Configuring DLSw ServicesC-24303523-A Rev. 00Table C-8. TCP TroubleshootingProblem Possible Cause Action/SolutionDLSw/TCP connections do not come up.I

Troubleshooting DLSw303523-A Rev. 00C-25 Table C-9. SNA TroubleshootingProblem Possible Cause Action/SolutionSNA stations cannot connect over DLSw.Hos

Configuring DLSw ServicesC-26303523-A Rev. 00Table C-10. NetBIOS TroubleshootingProblem Possible Cause Action/SolutionNetBIOS stations cannot connect

Troubleshooting DLSw303523-A Rev. 00C-27 Table C-11. LLC TroubleshootingProblem Possible Cause Action/SolutionFrame rejects cause session failures.End

Configuring DLSw ServicesC-28303523-A Rev. 00SDLC does not connect to the host computer.SDLC interface not activeSDLC local devices not configured pro

Troubleshooting DLSw303523-A Rev. 00C-29 Verifying the WAN CablingTables C-12 to C-15 list the specific WAN cables that ensure reliable DLSw connectiv

Configuring DLSw ServicesC-30303523-A Rev. 00Table C-15. Octal Sync Interface CablesCable DescriptionModem/No modem7932 50-pin to male V.35 Modem7934

303523-A Rev. 00Index-1Aacronyms, xxiaddresslearning capabilities, 3-20, 3-21MAC, 3-20peer IP, 3-12, 3-21, 5-35, 5-38BBackup Config parameter, 4-39, 5

Index-2303523-A Rev. 00Destination (Host) SAP (hex) parameter, 4-28Destination MAC (hex) parameter, 5-66Destination SAP (hex) parameter, 5-66Device Ac

303523-A Rev. 00Index-3IP Address for TCP Connection parameter, 5-40IP Address parameter, 4-11, 5-8, 5-38IP multicast parametersBackup Config, 4-39, 5

Data Link Switching Overview303523-A Rev. 001-5 UDP Explorer FramesIf a TCP/IP session is not active, the local router can send UDP explorer frames ac

Index-4303523-A Rev. 00multiple DLSw peers, 2-10Multislot Broadcasts parameter, 5-17NNetBIOS Cache Age parameter, 5-14NetBIOS Fallback Time parameter,

303523-A Rev. 00Index-5RReject Unconfigured Peers parameter, 5-15Remote MAC parameter, 4-14remote NetBIOS/SNA systems, 3-20RFC 1490 Frame Relay standa

Index-6303523-A Rev. 00transparent bridge support, 2-6Transport Type parameter, 5-29, 5-35UUDP explorer frames, 1-5, 3-13unconfigured peers, 3-15VVirt

303523-A Rev. 00iiiBay Networks, Inc. Software License AgreementNOTICE: Please carefully read this license agreement before copying or using the acco

Configuring DLSw Services1-6303523-A Rev. 00Single TCP/IP ConnectionDLSw Version 2 uses a single full-duplex TCP session to transport data. Using a si

Data Link Switching Overview303523-A Rev. 001-7 • Under RFC 2166, network connections are established only when needed and maintained only as long the

Configuring DLSw Services1-8303523-A Rev. 00Figure 1-1. Addressing a Message to an IP Multicast GroupWhen DLSw receives a TestP message, the following

Data Link Switching Overview303523-A Rev. 001-9 Figure 1-2. Receiving a Message Addressed to a Multicast GroupYou can use Site Manager to specify an I

Configuring DLSw Services1-10303523-A Rev. 00Figure 1-3. Multicast DLSwMulticastIP networkEndstation 1Slot ProtocolRouter A23IPDVMRPDLSwDLS0041AIP mul

Data Link Switching Overview303523-A Rev. 001-11 When end station 1 generates an SNA TestP message, the following steps occur:1. Router A receives the

Configuring DLSw Services1-12303523-A Rev. 00Figure 1-4. DLSw Single-Switch and Dual Switch-to-Switch NetworksBay Networks routerToken RingBay Network

Data Link Switching Overview303523-A Rev. 001-13 Single-Switch ServicesDLSw single-switch services enable the router to perform link level conversion,

Configuring DLSw Services1-14303523-A Rev. 00Figure 1-5. Bay Networks Single-Switch RouterThere are three important types of single-switch conversion:

Data Link Switching Overview303523-A Rev. 001-15 Figure 1-6 illustrates a network using adjacent routers, each performing single- switch conversion. B

iv303523-A Rev. 00its own data and information and for maintaining adequate procedures apart from the Software to reconstruct lost or altered files,

Configuring DLSw Services1-16303523-A Rev. 00DLSw dual-switch services uses TCP/IP between routers, unlike adjacent single- switch routers using LLC2.

Data Link Switching Overview303523-A Rev. 001-17 SDLC SupportIntegrated SDLC support merges the SDLC traffic with the multiprotocol traffic of LANs in

Configuring DLSw Services1-18303523-A Rev. 00The primary link station addresses and sends command frames to any or all secondary link stations on the

Data Link Switching Overview303523-A Rev. 001-19 Secondary SDLC SupportA Bay Networks router acting as a secondary device on an SDLC link can:• Suppor

Configuring DLSw Services1-20303523-A Rev. 00Figure 1-9. Secondary SDLC Routers in (a) Single- and (b) Dual-Switch DLSw NetworksFront-end processerHos

Data Link Switching Overview303523-A Rev. 001-21 Combining Primary and Secondary SDLCUsing primary and secondary SDLC services, a network can transpor

Configuring DLSw Services1-22303523-A Rev. 00Frame Relay Support Figure 1-11 illustrates the connection of a host through a Frame Relay network, in a

Data Link Switching Overview303523-A Rev. 001-23 Bay Networks provides two ways to communicate directly with an SNA processor (such as an IBM 3745 or

Configuring DLSw Services1-24303523-A Rev. 00Boundary Access NodeBAN is an IBM router enhancement. BAN refers to the RFC 1490 specification for Bridge

Data Link Switching Overview303523-A Rev. 001-25 In Figure 1-12, for example, the DLSw/APPN boundary function resides in an enterprise router located

303523-A Rev. 00vContentsPrefaceBefore You Begin ...

Configuring DLSw Services1-26303523-A Rev. 00In Figure 1-13, the boundary function resides in a regional location. This enterprise-wide network has an

Data Link Switching Overview303523-A Rev. 001-27 Figure 1-14. Boundary Function Virtual CircuitAPPN and DLSw send and receive messages on external lin

Configuring DLSw Services1-28303523-A Rev. 00In Figure 1-15, router 1 is running the DLSw/APPN boundary function. Router 2 is running DLSw only. The p

Data Link Switching Overview303523-A Rev. 001-29 DLSw Backup Peer SupportIf a TCP connection to the primary peer cannot be established, DLSw can estab

Configuring DLSw Services1-30303523-A Rev. 00• Source and destination SAP. Use this field to assign NetBIOS traffic (SAP 0xF0) to a lower priority tha

Data Link Switching Overview303523-A Rev. 001-31 • IBM Corporation. NetBIOS Frames Protocol, IBM Local Area Technical Reference, SC30-3383-03, Decembe

303523-A Rev. 002-1 Chapter 2DLSw Implementation NotesThis chapter provides important information about the Bay Networks DLSw implementation. You shou

Configuring DLSw Services2-2303523-A Rev. 00Selecting DLSw may enable the following subsystems:• A data link control subsystem, such as LLC2 (for LAN

DLSw Implementation Notes303523-A Rev. 002-3 Figure 2-1. DLSw-Capable Routers on an IP BackboneFor Frame Relay networks to use SRB, you must configure

vi303523-A Rev. 00SDLC Support ...1-17Pri

Configuring DLSw Services2-4303523-A Rev. 00Figure 2-2. Sample DLSw and SRB NetworkFor mixed topologies, an end-to-end connection path includes an SRB

DLSw Implementation Notes303523-A Rev. 002-5 Count the IP virtual ring as one ring in each source routing segment attached to your TCP/IP network. You

Configuring DLSw Services2-6303523-A Rev. 00Figure 2-3. DLSw and Source Route Bridging on SRB CircuitsDLSw and Bridging ServicesThis section presents

DLSw Implementation Notes303523-A Rev. 002-7 The transparent bridge interface on the same circuit with DLSw never sees TEST frames that contain destin

Configuring DLSw Services2-8303523-A Rev. 00.Figure 2-5. Translation Bridge ServicesThe translation bridge service:• Supports communication between sy

DLSw Implementation Notes303523-A Rev. 002-9 Figure 2-6. Independent DLSw/Translation Bridge NetworkParallel Bridge and DLSw PathsIf a valid bridging

Configuring DLSw Services2-10303523-A Rev. 00Multiple DLSw Peers on a LANYou can configure two or more DLSw nodes on the same SRB LAN. With this confi

DLSw Implementation Notes303523-A Rev. 002-11 TCP ConsiderationsTCP timers allow you to configure DLSw to periodically give TCP data to transmit if a

Configuring DLSw Services2-12303523-A Rev. 00The SAP window attempts to limit the number of outstanding frames queued for transmission to a remote end

DLSw Implementation Notes303523-A Rev. 002-13 DLSw PackagingIn DLSw dual-switch configurations, packaging allows multiple DLSw frames (consisting of u

303523-A Rev. 00viiDLSw Prioritization ...2-13Prot

Configuring DLSw Services2-14303523-A Rev. 00Backup PeersThe backup peer feature allows you to use a backup peer if the TCP connection to the primary

303523-A Rev. 003-1 Chapter 3DLSw Configuration OverviewThis chapter provides general information about configuring DLSw on Bay Networks routers, incl

Configuring DLSw Services3-2303523-A Rev. 00Adding Single-Switch DLSw ServicesWhen configuring a DLSw single-switch network, DLSw is enabled on each r

DLSw Configuration Overview303523-A Rev. 003-3 Single-Switch Configuration RequirementsTo configure single-switch DLSw services on the router, you def

Configuring DLSw Services3-4303523-A Rev. 00Virtual Ring MTUThe Virtual Ring MTU parameter allows you to limit the size of packets traversing the netw

DLSw Configuration Overview303523-A Rev. 003-5 Figure 3-2. Sample Network with SAP Table DefinitionsRefer to Chapter 5 for more information about acce

Configuring DLSw Services3-6303523-A Rev. 00Adding Dual-Switch DLSw ServicesWhen configuring DLSw dual-switch services, DLSw is enabled only on interf

DLSw Configuration Overview303523-A Rev. 003-7 Dual-Switch Configuration RequirementsTo configure dual-switch DLSw services on the router, you define:

Configuring DLSw Services3-8303523-A Rev. 00DLSw Advanced Global ParametersIn dual-switch configurations, you may want to edit those parameters that d

DLSw Configuration Overview303523-A Rev. 003-9 Since keepalive packets are sent only on idle lines, increasing the keepalive interval may decrease the

viii303523-A Rev. 00Configuring DLSw over Frame Relay ...3-18Boundary Networ

Configuring DLSw Services3-10303523-A Rev. 00DLSw Slot Table Each slot on a Bay Networks router running DLSw acts as an independent data link switch.

DLSw Configuration Overview303523-A Rev. 003-11 -- Slot 1: Represented by the circuitless IP address. This provides the highest availability for Token

Configuring DLSw Services3-12303523-A Rev. 00You enter slot information in the DLSw Slot IP Table during the initial configuration procedure. Refer to

DLSw Configuration Overview303523-A Rev. 003-13 Once a router knows that a DLSw peer can reach a specific system, the router can address frames direct

Configuring DLSw Services3-14303523-A Rev. 00Backup PeersA backup peer receives all DLSw-related broadcast frames for a given router or network proces

DLSw Configuration Overview303523-A Rev. 003-15 Unconfigured PeersA Bay Networks router running DLSw can respond to requests from remote routers to in

Configuring DLSw Services3-16303523-A Rev. 00Multicast IP Entries (RFC 2166)When you configure a multicast IP entry, you do not need to configure DLSw

DLSw Configuration Overview303523-A Rev. 003-17 Configuring SDLC Lines and DevicesThis section describes the objects that you define when you configur

Configuring DLSw Services3-18303523-A Rev. 00Several local device parameters must match other entries in the router, or in the attached SDLC device. T

DLSw Configuration Overview303523-A Rev. 003-19 Boundary Network Node (RFC 1490)Because BNN format does not carry the destination MAC address, incomin

303523-A Rev. 00ixEditing DLSw Basic Global Parameters ...5-3DLSw Basic Global

Configuring DLSw Services3-20303523-A Rev. 00Configuring Predefined MACs and NamesBay Networks routers in your network learn about the locations of re

DLSw Configuration Overview303523-A Rev. 003-21 Statically Defined Remote SystemsTo reduce DLSw broadcasts, you can statically define the IP addresses

Configuring DLSw Services3-22303523-A Rev. 00Configuring DLSw PackagingPackaging allows multiple DLSw frames (consisting of user data and DLSw’s SSP h

DLSw Configuration Overview303523-A Rev. 003-23 Configuring DLSw Backup PeersWhen you configure a primary peer, you can configure a peer to backup the

303523-A Rev. 004-1 Chapter 4Starting DLSwThis chapter describes how to enable DLSw services. It assumes that you have read Configuring and Managing R

Configuring DLSw Services4-2303523-A Rev. 00Starting DLSw the First Time When you first start DLSw, you use Site Manager to edit parameters that DLSw

Starting DLSw303523-A Rev. 004-3 Frame Relay (Routed SNA, RFC 1490, LLC over Frame Relay)• BNN (RFC 1490) or BAN (LLC/SRB)• DLSw Basic Global Paramet

Configuring DLSw Services4-4303523-A Rev. 00QLLC • QLLC Mapping Parameters• DLSw Basic Global Parameters• DLSw Basic Interface ParametersMap Entry, Ad

Starting DLSw303523-A Rev. 004-5 Setting the DLSw Basic Global ParametersThis section describes the DLSw basic global parameters if you are configurin