Selecting an ATM Address Format | Cisco Systems Network Router

Chapter 3 Address and Closed User Group Planning

Planning Address Configuration Settings

connections as it attempts to locate the correct node. A better design would use the longest possible prefix to represent all the interfaces on a node, and then a longer prefix on each interface that uniquely defines each interface.

At the end of this chapter, there are two worksheets (Table 3-4and Table 3-5) into which you can enter your WAN address values. If you are familiar with designing PNNI address structures, or if a plan is already completed, you can go directly to the Address Plan Worksheet and enter the values. The procedures for configuring ATM addresses on Cisco MGX and SES switch products are described in the following guides:

•Cisco MGX 8850 (PXM1E/PXM45), Cisco MGX 8950, Cisco MGX 8830, and Cisco MGX 8880 Configuration Guide, Release 5

•Cisco SES PNNI Controller Software Configuration Guide, Release 3

Planning Address Configuration Settings

Use the following steps to create a WAN address plan:

Step 1 Select an ATM address format

Step 2 Select a PNNI level

Step 3 Select the PNNI peer group ID

Step 4 Select the ATM address

Step 5 Select the ILMI address prefix

Step 6 Select the SPVC address prefix

Step 7 Plan address prefixes for AINI and IISP links

Step 8 Select static addresses for UNI ports

These steps are described further in the remainder of this chapter.

Selecting an ATM Address Format

Each PNNI node must be configured for at least one ATM address format. This is an ATM requirement that must be considered when choosing PNNI addresses. To establish ATM connections, each ATM UNI end system must have at least one ATM End System Address (AESA) that uniquely identifies that ATM endpoint. This section explains the supported AESA address formats and their structures.

Caution Each node must support the address format of all its neighboring nodes.

		Cisco PNNI Network Planning Guide for MGX and SES Products, Release 5

	Part Number OL-3847-01 Rev. D0, April, 2004			3-3
	Part Number OL-3847-01 Rev. D0, April, 2004			3-3

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Cisco Systems Network Router manual Planning Address Configuration Settings, Selecting an ATM Address Format

Contents

Text Part Number OL-3847-01 Rev. D0 Corporate Headquarters Copyright 2003, Cisco Systems, Inc All rights reserved Iii N T E N T S Compatible Standards Worksheets Part Number OL-3847-01 Rev. D0, April Vii G U R E S Viii B L E S Part Number OL-3847-01 Rev. D0, April Organization ObjectivesAudience Xii Conventions Documentation Notes for the April 2004 Product Releases DocumentationRelated Documentation Xiii Xiv Technical Manual Order of Use Terms Technical Manual Titles and Descriptions Xvi Xvii Xviii Xix Reference Guides Xxi Xxii Document Title Description Xxiii Xxiv Xxv Xxvi Cisco.com Obtaining DocumentationOrdering Documentation Xxvii Xxviii Changes to This DocumentChapter Changes Documentation Feedback Obtaining Technical AssistanceCisco TAC Website Opening a TAC Case Xxx Obtaining Additional Publications and InformationTAC Case Priority Definitions Xxxi Xxxii Pnni Network Database Introduction to Pnni Single Peer Group Topology Example Single Peer Group Topology Hierarchical Pnni Network Topology Peer group Ppeer Simple Node Representation Peer Group Leaders Simple Node Representation Complex Node Representation Hierarchical Pnni Network Benefits Pnni Internetworking with AiniBorder Nodes Example Pnni Internetworking with Aini Topology Pnni Internetworking with Iisp Part Number OL-3847-01 Rev. D0, April Compatible Standards Specifications Capabilities PXM45PXM1E PXM45/B SES Capabilities SES Connection Type Switch Connections CWM Endpoints Connection Limit AdjustmentsSVC DAX Spvc Physical Network Planning Install Redundant Hardware in SwitchesParallel Links Between Adjacent Switches Multiple Links Between Adjacent Peer Groups Planning Guidelines for Individual Peer GroupsMultiple Links to an External Network Multiple Paths Between Network Nodes Planning Guidelines for Border Nodes Planning Guidelines for Hierarchical NetworksPlanning Guidelines for Peer Group Leaders Part Number OL-3847-01 Rev. D0, April Address Planning Overview Address and Closed User Group Planning Pnni Addressing Example Selecting an ATM Address Format Planning Address Configuration Settings ESI SEL IDP DSP Supported Address Formats Guidelines for Selecting an Address Format ATM Field Description Default Values Address Registration Authorities Selecting a Pnni LevelCategory Type Authorities DCC 4shows an example topology of a Pnni MPG WAN Part Number OL-3847-01 Rev. D0, April Level Peer Group ID Portion of ATM Address Bytes Length Selecting the Pnni Peer Group ID Default Peer Group ID 20-byte Node Address Selecting the ATM Address Planning Address Prefixes for Aini and Iisp Links Selecting the Ilmi Address PrefixSelecting the Spvc Address Prefix Additional Guidelines for Creating an Address Plan Selecting Static Addresses for UNI Ports Closed User Group Example Closed User Group Overview Selecting an Index Planning CUG Configuration SettingsSelecting an Interlock Code Selecting CPE Addresses Selecting Internal CUG Access Options Specifying a Preferential CUG Selecting External CUG Access Options Worksheets Selecting a Default CUG Address CUG Part Number OL-3847-01 Rev. D0, April Link and Route Metrics Administrative WeightHow MGX and SES Nodes Select Routes Available Cell Rate Cell Transfer DelayCell Delay Variation Shortest Path Tables Shortest Path Table RoutingMaximum Cell Rate Service Class Acronym Definition Guidelines Class of Service TablesCTD CDV Traffic Metric How SPVCs and SPVPs use the SPTs How SVCs and SVPs use the SPTs Load Balancing for SPT and On-Demand Routing How MGX and SES Nodes Select LinksOn-Demand Routing Service Additional Routing Features in MGX and SES NodesPreferred Routing CLR0+12 Grooming Priority Routing Priority Bumping Soft ReroutingBlocking Pass-Through Connections Nodal Point-to-Multipoint Branch Restriction AXSM/B AXSM/AAXSM-E AXSM-XG Farthest Node Branching Part Number OL-3847-01 Rev. D0, April Aesa ABRAini Ansi APS CBR P2MPCTD IN-2 CWM CUGDIN IN-3 IN-4 Pnni PGLMGX SES IN-5 IN-6 UNI UBRTAC IN-7 IN-8