Avaya Configuring XNS Services Manuale Utente

Configuring XNS Services Router Software Version 10.0Site Manager Software Version 4.0Part No. 112949 Rev. AJanuary 1996

About This Guide

Configuring XNS Servicesxii Bay Networks Customer Support Bay Networks provides live telephone technical support to our distributors, resellers, and

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Configuring XNS Servicesxiv Conventions This section describes the conventions used in this guide.angle brackets (< >) Indicate that you choose

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1-1 Chapter 1XNS Overview This chapter provides information on the Bay Networks implementation of the Xerox Network Systems (XNS) router software. Th

Configuring XNS Services1-2 XNS Protocol Stack XNS was developed at the Xerox Palo Alto Research Center (PARC). Its layered architecture is a predece

XNS Overview1-3 • Level 2 protocols provide for the exchange of routing information between routers, handle the sequencing of packets within a packet

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Configuring XNS Services1-4 Level 1 Bay Networks implements IDP, the only XNS Level 1 protocol. IDP determines where each internet packet goes, addre

XNS Overview1-5 • The address of the next-hop node to which packets destined for that network will be forwardedRouters maintain RIP tables by exchang

Configuring XNS Services1-6 To limit traffic, RIP broadcasts are limited to a router’s immediate segments and are not forwarded by receiving routers.

XNS Overview1-7 Echo Protocol The Echo Protocol is a Level 2 protocol. It provides a relatively simple means to verify the existence and correct oper

Configuring XNS Services1-8 Sequenced Packet Protocol The Sequenced Packet Protocol (SPP) is a Level 2 protocol. It supports the reliable transmissio

XNS Overview1-9 When you enable external server support on a particular XNS interface, you specify the service request type to be routed and the dest

Configuring XNS Services1-10 Figure 1-2. Static Route in a Sample NetworkParametersNext hop networkNext hop host524Target networkStatic route configu

XNS Overview1-11 Adjacent Hosts An adjacent host is a network device that is local to a directly connected network. This device may or may not be a r

Configuring XNS Services1-12 Figure 1-3. Static Adjacent Host in a Sample Network404 (0x194)403 (0x193)Generic XNS routerHost ID 6Generic XNS routerH

XNS Overview1-13 Configurable Split Horizon The purpose of the Split Horizon algorithm is to prevent circular routes and reduce network traffic. The Ba

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Configuring XNS Services1-14 A non-fully meshed network is a WAN in which one or more nodes do not have logically direct connections to all other nod

2-1Chapter 2XNS Configuration NotesRefer to this chapter when you are configuring the following XNS services:• XNS without RIP• XNS on a Token Ring inte

Configuring XNS Services2-2Configuring a MAC Address on a Token Ring InterfaceAny physical interface (such as LANCE, ILACC, and FSI) that can run in in

3-1Chapter 3Enabling XNS ServicesThis chapter describes how to enable XNS services. It assumes you have read Configuring Routers and that you have1. Op

Configuring XNS Services3-2Enabling XNS ServicesYou enable XNS services from the XNS Configuration window (Figure 3-1). Refer to the parameter descript

Enabling XNS Services3-3 Parameter: Base Host Number Default: The Configuration Manager automatically generates a unique 6-byte host number from the Ba

Configuring XNS Services3-4 Parameter: Configure RIP Default: Depends on whether you have RIP configured Options: Yes | No Function: Indicates whether

4-1Chapter 4Editing XNS ParametersRefer to this chapter when you are using Site Manager to• Access XNS parameters• Edit XNS global parameters• Edit XN

Configuring XNS Services4-2The Technician Interface allows you to modify parameters by issuing set and commit commands with the MIB object ID. This pr

Editing XNS Parameters4-3Editing XNS Global ParametersTo edit XNS Global parameters, begin at the Configuration Manager window (Figure 4-1) and proceed

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Configuring XNS Services4-4 Parameter: Enable Default: Enable Options: Enable | Disable Function: Globally enables or disables the system software mec

Editing XNS Parameters4-5 Parameter: Host Number Default: The Configuration Manager automatically generates a unique 6-byte host number from the Bay Ne

Configuring XNS Services4-6Editing XNS Interface ParametersAny XNS interface you add to a Token Ring circuit acquires from the system a default set of

Editing XNS Parameters4-7The reference for each interface in the list appears in the form network address, circuit namewhere• The network address of t

Configuring XNS Services4-8 Parameter: Cost Default: 0 (for each hop) Range: 1 to 15 Function: Sets the cost (number of hops) for this interface. Thi

Editing XNS Parameters4-9 Parameter: SMDS Group Address Default: None Options: A complete SMDS E.164 address specified by the SMDS subscription agreeme

Configuring XNS Services4-10 Parameter: Ext Serv Network Default: Enable Options: Any valid network address Function: Specifies the network of the remo

Editing XNS Parameters4-11 Parameter: Ext Serv Packet Type Default: None Options: Any valid packet type Function: Specifies the packet type of the serv

Configuring XNS Services4-12 Parameter: WAN Broadcast Default: ffffff (not displayed) Options: Default value or a user-specified Frame Relay broadcast

Editing XNS Parameters4-13 Parameter: Split Horizon Algorithm Default: Enable Options: Enable | Disable Function: When the interface forwards RIP and

v Contents About This Guide Audience ...

Configuring XNS Services4-14Figure 4-4. XNS RIP Interfaces Window2.Select the interface you want to edit by clicking on the appropriate entry in the l

Editing XNS Parameters4-15 Parameter: Enable Default: Enable Options: Enable | Disable Function: Specifies whether you enabled the Routing Information

Configuring XNS Services4-16 Parameter: Listen Default: Enable Options: Enable | Disable Function: Specifies whether this interface listens to RIP upda

Editing XNS Parameters4-17Figure 4-5. XNS Adjacent Hosts WindowAdding an Adjacent Host To add an adjacent host, begin at the XNS Adjacent Hosts window

Configuring XNS Services4-18Figure 4-6. Adjacent Host Configuration Window2.Enter hexadecimal values for the Target Host Network and Host ID parameters

Editing XNS Parameters4-19 Parameter: Target Host Network (hex) Default: None Options: Valid network address of the adjacent host Function: Specifies t

Configuring XNS Services4-20 Parameter: DLCI (hex) Default: None Options: Data Link Control Identifier Function: Identifies the virtual circuit in a Fra

Editing XNS Parameters4-21 Parameter: Enable Default: The Configuration Manager automatically sets this parameter to Enable when you click on Add in th

Configuring XNS Services4-22 Parameter: DLCI Default: None Options: Data Link Control Identifier Function: Identifies the virtual circuit in a Frame Rel

Editing XNS Parameters4-23The sections that follow show you how to add, edit, and delete XNS static routes in a Bay Networks router configuration. You

vi Chapter 2 XNS Configuration Notes Configuring XNS without RIP ...

Configuring XNS Services4-241.Click on Add. The XNS Add Static Route window appears (Figure 4-8).Figure 4-8. XNS Add Static Route Window2.Enter values

Editing XNS Parameters4-25 Parameter: Target Network (hex) Default: None Options: Any valid network address in hexadecimal notation Function: Specifies

Configuring XNS Services4-26A description of parameters in the XNS Static Routes window follows. Parameter: Enable Default: The Configuration Manager a

Editing XNS Parameters4-27Deleting a Static RouteTo delete an XNS static route, proceed as follows:1. From the XNS Static Routes window, select the st

A-1Appendix ASite Manager Default SettingsTables A-1 to A-4 describe the Site Manager default parameter settings for the Xerox Network Systems (XNS) p

Configuring XNS ServicesA-2WAN Broadcast ffffffWAN Multicast ffffffSplit Horizon Algorithm EnableTable A-3. XNS RIP Interface Parameters Parameter De

Site Manager Default SettingsA-3Next Hop Host NoneNext Hop Interface NoneDLCI NoneTable A-5. XNS Static Route Parameters (continued) Parameter Defaul

Index-1Aadjacent host parameters, 4-16adjacent hosts, 1-11adding, 4-17deleting, 4-22editing, 4-20BBay NetworksCompuServe forum, xiicustomer support, x

vii Figures Figure 1-1. Comparison of OSI and XNS Protocol Stacks ...1-2Figure 1-2. Static Route in a Sample Ne

Index-2Mmedia access control (MAC), 2-2Nnon-fully meshed network, 1-13 to 1-14OOSI protocol stack, 1-2PPacket Exchange Protocol, 1-8parametersadjacent

Index-3SSequenced Packet Protocol, 1-8Site Manager, 4-1SMDS, 1-9, 1-11, 2-1, 4-9, 4-23split horizonfully meshed network, 1-13non-fully meshed network,

ix Tables Table 1-1. XNS Error Protocol Numbers ..................1-7Table A-1. XNS Global Parameter