Avaya Configuring LLC Services Uživatelský manuál

Part No. 114066 Rev. AAugust 1996Router Software Version 11.0Site Manager Software Version 5.0 Configuring LLC Services

114066 Rev. A xi Tables Table 1-1. LLC Command PDUs ...1-9Table 1-2. PDU

114066 Rev. A xiii About This Guide Customizing your Bay Networks™ routers for Logical Link Control (LLC) services opens your network to LAN Network

Configuring LLC Servicesxiv 114066 Rev. A Conventions This section describes the conventions used in this guide.angle brackets (< >) Indicate t

About This Guide 114066 Rev. A xv Acronyms ANSI American National Standards InstituteAPPN Advanced Peer-to-Peer NetworkingDLCI data link connection

Configuring LLC Servicesxvi 114066 Rev. A Ordering Bay Networks Publications To purchase additional copies of this document or other Bay Networks pub

114066 Rev. A xvii Technical Support and Online Services To ensure comprehensive network support to our customers and partners worldwide, Bay Networ

Configuring LLC Servicesxviii 114066 Rev. A Bay Networks Customer Service If you purchased your Bay Networks product from a distributor or authorize

Technical Support and Online Services 114066 Rev. A xix Bay Networks Information Services Bay Networks Information Services provide up-to-date suppo

ii 114066 Rev. A 4401 Great America Parkway 8 Federal StreetSanta Clara, CA 95054 Billerica, MA 01821 Copyright © 1988–1996 Bay Networks, Inc. All ri

Configuring LLC Servicesxx 114066 Rev. A Support Source CD This CD-ROM -- sent quarterly to all contracted customers -- is a complete Bay Networks Se

Technical Support and Online Services 114066 Rev. A xxi InfoFACTS InfoFACTS is the Bay Networks free 24-hour fax-on-demand service. This automated s

114066 Rev. A 1-1 Chapter 1Logical Link Control Overview LLC is a standard protocol within the CCITT 8802.2 and IEEE 802. x family of LAN standards

Configuring LLC Services1-2 114066 Rev. A Using LLC2 with SNA and NetBIOS SNA needs a connection-oriented datalink layer for end-to-end packet sequen

Logical Link Control Overview 114066 Rev. A 1-3 • WAN interfaces-- Frame Relay Boundary Network Node (BNN) and Boundary Access Node (BAN) interfaces

Configuring LLC Services1-4 114066 Rev. A • DLCI• Remote (or Destination) MAC• Local (or Source) MACEach entry requires that you specify the Remote M

Logical Link Control Overview 114066 Rev. A 1-5 Figure 1-1. Sample Frame Relay Network Bay Networks RouterBay Networks RouterHostClientSingle-Switc

Configuring LLC Services1-6 114066 Rev. ALLC 8802/802.2 StandardsThe LLC protocols comply with the CCITT 8802.2 standard, and operate within the IEEE

Logical Link Control Overview114066 Rev. A 1-7 • Connection-Oriented (Class 2 or LLC2)• Connectionless Acknowledged (Class 3 or LLC3)LLC1 (Connectionl

114066 Rev. A iii Bay Networks Software License This Software License shall govern the licensing of all software provided to licensee by Bay Networ

Configuring LLC Services1-8 114066 Rev. A• Responds to a request from a higher-level protocol to close an established connection• Notifies a higher-lev

Logical Link Control Overview114066 Rev. A 1-9 • The source and destination LLCs control traffic by means of a numbering scheme for the sequential tran

Configuring LLC Services1-10 114066 Rev. ALLC Protocol Data Unit FormatsThe LLC protocol data unit (PDU) contains fields for addressing, control, and d

Logical Link Control Overview114066 Rev. A 1-11 Figure 1-4. DSAP Address Field• A value of 0 for the Address Designation bit indicates that the PDU is

Configuring LLC Services1-12 114066 Rev. A• A value of 0 for the Command/Response Identifier bit indicates that the PDU is a Command PDU.• A value of 1

Logical Link Control Overview114066 Rev. A 1-13 SAP addresses can be• Individual -- Designates a single SAP. The individual address is usable as both

Configuring LLC Services1-14 114066 Rev. AFigure 1-7. LLC PDU Control Field FormatControl Field FormatsTable 1-2 further defines the purpose of the thr

Logical Link Control Overview114066 Rev. A 1-15 Table 1-3 further defines the purpose of parameter bits in the PDU Control field.Table 1-2. PDU Format a

Configuring LLC Services1-16 114066 Rev. ATable 1-4 further defines the purpose of each command and response PDU.Table 1-4. Command Names and Definition

Logical Link Control Overview114066 Rev. A 1-17 Command/ResponseControl Field ValueDefinitionReceiver Ready (RR)01xx The RR command PDU indicates that

iv 114066 Rev. A Bay Networks Software License (continued) 9. Licensee shall not reverse assemble, reverse compile, or in any way reverse engineer

Configuring LLC Services1-18 114066 Rev. AInformation FieldThe contents of the Information field depend on the type of PDU in which it appears, as foll

Logical Link Control Overview114066 Rev. A 1-19 • The Information field of an FRMR PDU contains the reason for PDU rejection by an LLC. (The contents o

114066 Rev. A 2-1 Chapter 2LLC2 Routed over Frame RelayLLC2 (connection-oriented service) in a Bay Networks router supports Frame Relay with both Data

Configuring LLC Services2-2 114066 Rev. ADSPUs attached to the router retain full visibility for IBM NetView management. The router passes through all

LLC2 Routed over Frame Relay114066 Rev. A 2-3 Figure 2-1. Sample Frame Relay Network Using LLC2Bay Networks Routerwith DLSw or APPNIBM CommunicationsC

Configuring LLC Services2-4 114066 Rev. AFRAD-like FunctionalityToken Ring, Ethernet, and SDLC endstations communicate with a Frame Relay attached hos

LLC2 Routed over Frame Relay114066 Rev. A 2-5 When the router receives an LLC frame from the DLSw network with a dmac not starting with the virtual MA

Configuring LLC Services2-6 114066 Rev. AVirtual MAC to Frame RelayFigure 2-2 illustrates a sample virtual MAC address to Frame Relay DLCI mapping. In

LLC2 Routed over Frame Relay114066 Rev. A 2-7 Frame Relay to Virtual MACFigure 2-3 illustrates a sample Frame Relay DLCI to virtual MAC address mappin

114066 Rev. A v Contents Configuring LLC Services About This Guide Audience ...

Configuring LLC Services2-8 114066 Rev. APhysical MAC to Frame RelayFigure 2-4 illustrates a sample physical MAC address to Frame Relay DLCI mapping.

LLC2 Routed over Frame Relay114066 Rev. A 2-9 Frame Relay to Physical MACFigure 2-5 illustrates a sample Frame Relay DLCI to Physical MAC mapping. In

Configuring LLC Services2-10 114066 Rev. AFigure 2-5. Frame Relay to Physical MAC TopologyFrame Relay to Frame RelayFigure 2-6 illustrates a sample Fr

LLC2 Routed over Frame Relay114066 Rev. A 2-11 Router A always sets the source MAC address equal to the virtual MAC address, even if there is a remote

Configuring LLC Services2-12 114066 Rev. ALLC2 over Frame Relay: Routed versus BridgedFigure 2-7 illustrates (a) SNA over Frame Relay with source-rout

LLC2 Routed over Frame Relay114066 Rev. A 2-13 For More Information about LLC2 over Frame RelayThe following publications give technical detail on LLC

114066 Rev. A 3-1 Chapter 3Enabling LLC ServicesThis chapter describes how to enable LLC services. It assumes that you have read Configuring Routers an

Configuring LLC Services3-2 114066 Rev. AEnabling LLC2 on an InterfaceTo enable LLC2 on an interface, select LLC2 from the Select Protocols window (Fi

Enabling LLC Services114066 Rev. A 3-3 Enabling LLC2 Services over Native Frame RelayIf you are configuring and enabling Frame Relay on LLC2 media, Con

vi 114066 Rev. A LLC Operation Types ...1-8Type 1

Configuring LLC Services3-4 114066 Rev. AFigure 3-3. Select Protocols WindowFor APPN Networks1. Select APPN from the Select Protocols window.The Config

Enabling LLC Services114066 Rev. A 3-5 3.Select Cancel. This selects native (routed) Frame Relay for LLC2.4. In the APPN Local Node Name Configuration

Configuring LLC Services3-6 114066 Rev. AFigure 3-5. LLC2 Frame Relay Mappings Window4.Select Add. The LLC2 Frame Relay Mapping Add window appears (Fi

Enabling LLC Services114066 Rev. A 3-7 Figure 3-6. LLC2 Frame Relay Mapping Add Window5.Specify the DLCI, Remote MAC, and Local MAC parameters, as fol

Configuring LLC Services3-8 114066 Rev. A Parameter: Remote MAC Default: None Options: Standard MSB Token Ring MAC addresses Function: Provides the re

Enabling LLC Services114066 Rev. A 3-9 Figure 3-7. LLC2 Frame Relay Mappings Window with DLCI Added7.Select Apply.Repeat Steps 4 through 6 for additio

114066 Rev. A 4-1 Chapter 4Editing LLC ParametersYou can edit the parameters for the LLC interfaces that you configure on the router.When you configure

Configuring LLC Services4-2 114066 Rev. AConfiguring LLC ParametersTo access and edit LLC parameters, begin at the Configuration Manager window (Figure

Editing LLC Parameters114066 Rev. A 4-3 Editing LLC2 Global ParametersOnly the Enable parameter is visible at the global (router) level for LLC. To ch

114066 Rev. A vii Chapter 4 Editing LLC Parameters Configuring LLC Parameters ...

Configuring LLC Services4-4 114066 Rev. A Parameter: Enable Default: Enable Options: Enable | Disable Function: Globally enables or disables the syste

Editing LLC Parameters114066 Rev. A 4-5 Figure 4-3. LLC2 Interface Configuration WindowUse the scroll bar on the lower right of your screen to view mor

Configuring LLC Services4-6 114066 Rev. AThe LLC2 Interface Configuration window contains the following information fields:• The upper-left quarter cont

Editing LLC Parameters114066 Rev. A 4-7 Parameter: Enable Default: Enable Options: Enable | Disable Function: Enables or disables the LLC2 interface

Configuring LLC Services4-8 114066 Rev. A Parameter: Max Octets in I Default: 5128 (octets) Range: 1 to 5128 Function: Specifies, in octets, the size o

Editing LLC Parameters114066 Rev. A 4-9 Parameter: Send Window Default: 7 (PDUs) Range: 1 to 127 Function: Specifies a maximum number of Information P

Configuring LLC Services4-10 114066 Rev. A Parameter: Ack Timer for Xmt Default: 1 s Range: 1 to 15 Function: Specifies the amount of time, in seconds

Editing LLC Parameters114066 Rev. A 4-11 Parameter: Reject Timer Default: 1 s Range: 1 to 30 Function: Specifies the amount of time, in seconds, duri

Configuring LLC Services4-12 114066 Rev. A Parameter: Inactivity Timer Default: 30 s Range: 1 to 30 Function: Specifies the amount of time, in seconds,

Editing LLC Parameters114066 Rev. A 4-13 Parameter: Frame Relay Virtual MAC Address Mask Default: 0x400000FF Options: Octal string Function: This mas

Configuring LLC Services4-14 114066 Rev. ADeleting an LLC2 InterfaceTo delete an LLC2 interface from its associated physical circuit, start at the LLC

114066 Rev. A A-1 Appendix ALLC2 Default SettingsTables A-1 and A-2 list the default settings for LLC2 parameters. Use the Configuration Manager to edi

Configuring LLC ServicesA-2 114066 Rev. ABusy Timer 60 sInactivity Timer 30 sMax Links 255 (logical connections)Frame Relay Virtual MAC Address Mask0x

114066 Rev. A Index-1 AAck Timer for Xmt parameter, 4-10address mapping, 2-4 to 2-11address mask, 4-13addresses, real and virtual, 2-4BBay NetworksCom

Configuring LLC ServicesIndex-2 114066 Rev. AEEnable (global) parameter, 4-3 to 4-4Enable (interface) parameter, 4-7enabling LLC services, 3-1enabling

Index114066 Rev. A Index-3 NNCP compatibility, 2-1Ooperation typesnumbered, acknowledged (type 2), 1-8 to 1-18unnumbered, unacknowledged (type 1), 1-8

Configuring LLC ServicesIndex-4 114066 Rev. Atype 2 operation parametersAck Timer for Xmt, 4-10Busy Timer, 4-11Inactivity Timer, 4-12Max Links, 4-12Ma

114066 Rev. A ix Figures Figure 1-1. Sample Frame Relay Network ................1-5Figure 1-2. The L