Avaya Configuring Frame Relay Services Uživatelský manuál

Configuring Frame RelayServices Router Software Version 10.0Site Manager Software Version 4.0Software Version BNX 6.0Site Manager Software Version B

xi Tables Table 2-1. How Protocols Handle Address Resolution ...2-8Table 2-2. Synchronous Line Parameters f

xiii About This Guide If you are responsible for configuring and managing Bay Networks routers or BNX platforms, read this guide to discover how to cu

Configuring Frame Relay Servicesxiv • The ARE VNR Corporate Suite provides ATM Forum LAN Emulation, in addition to the ARE ATM Suite and Corporate

About This Guidexv CompuServe Bay Networks maintains an active forum on CompuServe. All you need to join us online is a computer, a modem, and a Comp

Configuring Frame Relay Servicesxvi World Wide Web The World Wide Web (WWW) is a global information system for file distribution and online document v

About This Guidexvii italic text Indicates variable values in command syntax descriptions, new terms, file and directory names, and book titles.quotat

Configuring Frame Relay Servicesxviii Acronyms ANSI American National Standards InstituteARP Address Resolution ProtocolATM Asynchronous Transfer Mod

1-1 Chapter 1Frame Relay Overview Frame Relay is a high-speed, packet-switching WAN protocol that enables the interconnection of geographically dispe

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Configuring Frame Relay Services1-2 Frame Relay assumes that networks use transmission lines with low error rates such as digital transmission media.

Frame Relay Overview1-3 Figure 1-2. Frame Relay Header, 2-Byte Format Figure 1-2 depicts the Frame Relay header as a 2-byte structure. Frame Relay ca

Configuring Frame Relay Services1-4 Management Protocols Frame Relay is an access protocol that runs between a router (DTE) and a switch (DCE). The r

Frame Relay Overview1-5 Frame Processing When a frame enters a Frame Relay network, the network performs three steps to process the data:1. Verifies t

Configuring Frame Relay Services1-6 The following publications provide a less technical introduction to Frame Relay:Davidson, R. and Muller, N. The

2-1 Chapter 2Implementation Notes This chapter provides information about the Bay Networks implementation of Frame Relay. Access Modes for Frame Rela

Configuring Frame Relay Services2-2Figure 2-1. Fully Meshed and Non-fully Meshed NetworksGroup AccessIn group access mode, upper-layer protocols trea

Implementation Notes2-3Figure 2-2. Group Access Mode ConfigurationGroup access mode supports all protocols, simplifies network addressing, and is the ea

Configuring Frame Relay Services2-4Direct AccessIn direct access mode, upper-layer protocols treat the Frame Relay network as a series of point-to-poi

Implementation Notes2-5Hybrid AccessHybrid access mode, as its name implies, combines characteristics of group and direct access modes. It works only

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Configuring Frame Relay Services2-6CDRouter 1BABridge port sees onepath to sites A and BRouter 2Router 3EFSite A Site BFrameRelayNetworkFR0008ABefore

Implementation Notes2-7If you define the PVCs in hybrid access mode (Figure 2-4), each PVC acts as a separate bridge port. This enables the bridge runn

Configuring Frame Relay Services2-8Address ResolutionAddress resolution maps a remote network address such as an IP address to a local DLCI number. Fo

Implementation Notes2-9Data Compression over Frame RelayYou can configure the Bay Networks proprietary data compression protocol, WCP, over wide area n

Configuring Frame Relay Services2-10MultilineFrame Relay provides a redundancy multiline feature. The multiline feature lets you group two or more phy

Implementation Notes2-11Traffic Distribution between Data PathsTo distribute traffic between multiline data paths, you can use one of two methods:• Rand

Configuring Frame Relay Services2-12Congestion ControlNetwork congestion can degrade network performance. Congestion occurs when a node receives more

Implementation Notes2-13If you enable the congestion control feature, you can specify the number of FECN/BECN bits the router receives in a given time

3-1Chapter 3Enabling Frame RelayThis chapter describes how to enable Frame Relay. It assumes you have read Configuring Routers or Configuring Customer A

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Configuring Frame Relay Services3-2Figure 3-1. Configuration Manager WindowThe Configuration Manager displays the WAN Protocols menu (Figure 3-2).Figure

Enabling Frame Relay3-32.Select Frame Relay.When running routing software, protocol prioritization is enabled automatically when you select Frame Rela

4-1Chapter 4Editing Frame Relay ParametersOnce you configure a circuit with Frame Relay, you can use the Configuration Manager to edit Frame Relay param

Configuring Frame Relay Services4-2Editing Frame Relay DLCMI ParametersTo edit Frame Relay DLCMI parameters, begin at the Configuration Manager window

Editing Frame Relay Parameters4-3Figure 4-2. Frame Relay Interface List Window2.Select the interface that you want to edit from the scroll list.3. Mod

Configuring Frame Relay Services4-4Frame Relay Interface ParametersUse the following descriptions as guidelines when you edit the parameters on the Fr

Editing Frame Relay Parameters4-5CCITT Annex A provides user-side management services as specified by the ITU-T (formerly CCITT).LMI Switch offers limi

Configuring Frame Relay Services4-6 Parameter: Address Default: ADDR Q922 Options: ADDR Q922 | ADDR Q922 November 90 | ADDR Q922 MARCH 90 | ADDR Q921

Editing Frame Relay Parameters4-7 Parameter: Polling Interval Default: 10 seconds Range: 5 to 30 seconds Function: Specifies the interval between Statu

v Contents About This Guide Software Suites ...

Configuring Frame Relay Services4-8 Parameter: Error Threshold Default: 3 Range: 0 to 2,147,483,647 Function: Together with the value of the Monitored

Editing Frame Relay Parameters4-9 Parameter: Monitored Events Default: 4 Range: 0 to 2,147,483,647 Function: Together with the value of the Error Thre

Configuring Frame Relay Services4-10 Parameter: Congestion Timer Default: 1 second Range: 0.5 to 5 seconds, in 0.5-second intervals Function: Specifies

Editing Frame Relay Parameters4-11Configuring PVCsBy default, Frame Relay PVCs operate in group access mode. Group access mode is self-configuring as lo

Configuring Frame Relay Services4-12Figure 4-3. Frame Relay PVC List Window4.To start with the default PVC configuration, click on Add. To copy an exis

Editing Frame Relay Parameters4-13Figure 4-4. Frame Relay Virtual Circuit Window (Group Mode)Figure 4-5. Frame Relay Virtual Circuit Window (Direct/Hy

Configuring Frame Relay Services4-146.Select a value for the Enable Multi-line parameter. (Refer to Chapter 2 for information about multiline.)7. Clic

Editing Frame Relay Parameters4-15 Parameter: Enable Multi-line Default: No Options: Yes | No Function: Allows you to enable the multiline feature for

Configuring Frame Relay Services4-16PVC Configuration ParametersUse the following descriptions as guidelines when you edit the parameters on the Frame

Editing Frame Relay Parameters4-17 Parameter: Mode Default: Group Access Options: Group Access | Hybrid Access | Direct Access Function: Specifies the

viSource Routing ...2-9Multiline ...

Configuring Frame Relay Services4-18 Parameter: Congestion Timer Default: 1 second Range: 0.5 to 5 seconds, in 0.5-second intervals Function: Specifies

Editing Frame Relay Parameters4-19Selecting Protocols for Direct or Hybrid Mode PVCsIf you set the Mode parameter in the Frame Relay PVC List window t

Configuring Frame Relay Services4-202.Select one or more protocols to be carried on this PVC and click on OK.For hybrid access PVCs, the Configuration

Editing Frame Relay Parameters4-21Grouping PVCs for MultilineYou can configure two or more PVCs to run in multiline mode (refer to Chapter 2 for more i

Configuring Frame Relay Services4-226.Select a PVC from the scroll list that you want to group with the first PVC you selected.7. Click on Select to re

Editing Frame Relay Parameters4-23Data Path Chooser Parameter Parameter: Data Path Chooser Default: None Options: Random | Address Based Function: Spe

Configuring Frame Relay Services4-24If the switch provider deletes a PVC that you manually configured, the circuit state is set to Invalid, and the PVC

A-1Appendix AConfiguration ExamplesThis appendix provides examples for configuring AppleTalk, DECnet, IP, IPX, and OSPF over a Frame Relay network. It l

Configuring Frame Relay ServicesA-2Non-Fully Meshed ConfigurationFigure A-1 shows the Frame Relay portion of the network as a non-fully meshed configura

Configuration ExamplesA-3Fully Meshed ConfigurationFigure A-2 shows the Frame Relay portion of the network as a fully meshed configuration using group a

viiConfiguring the Group Mode PVCs ... A-7Configuring the Direct Mode PVC ...

Configuring Frame Relay ServicesA-4Configuring Protocols for Each Type of NetworkFor AppleTalk, DECnet, IP, IPX, and OSPF, you must modify a few parame

Configuration ExamplesA-5DECnet ConfigurationTable A-3 lists the DECnet parameters that you must edit for each interface.Table A-2. IP Adjacent Hosts f

Configuring Frame Relay ServicesA-6IP ConfigurationTable A-4 lists the IP parameters that you must edit for each interface.For non-fully meshed configur

Configuration ExamplesA-7OSPF ConfigurationTable A-6 lists the OSPF parameters that you must edit for each interface.Configuring the Group Mode PVCsOnce

Configuring Frame Relay ServicesA-8Table A-8 lists the Frame Relay Virtual Circuit parameter that you must configure.Once you enter the DLCI Number, yo

Configuration ExamplesA-9Table A-10 lists the Frame Relay Virtual Circuit parameter that you must configure for the direct mode PVC.To configure the PVC

Configuring Frame Relay ServicesA-10AppleTalk ConfigurationTable A-12 lists the AppleTalk parameters that you must edit for each interface.DECnet Config

Configuration ExamplesA-11IP ConfigurationTable A-14 lists the IP parameters that you must edit for each interface.IPX ConfigurationTable A-15 lists the

B-1Appendix BFrame Relay Default SettingsThis appendix lists the default parameter settings for Frame Relay. Use the Configuration Manager to edit any

Configuring Frame Relay ServicesB-2Table B-2. Frame Relay PVC Parameters Parameter DefaultDLCI Number NoneEnable Multi-line NoCircuit State Set Active

Index-1Aaccess modesdescription of, 2-1direct access, 2-4group access, 2-2 to 2-3hybrid access, 2-5 to 2-7Address Length parameter, 4-6Address paramet

Index-2Frame Relaydefaults, B-1enabling, 3-1implementation notes, 2-1overview, 1-1reference sources, 1-5Full Enquiry Interval parameter, 4-7Ggroup acc

Index-3definition of, 1-1deleting, 4-23editing parameters for, 4-15 to 4-20Rrandom traffic distribution for multiline, 2-11RFC 1490, 2-7Ssource routing

ix Figures Figure 1-1. Frame Relay Network ....................1-1Figure 1-2. Frame Relay