6 IS-IS Configuration
About This Chapter
This chapter describes the basic principle of IS-IS and procedures for configuring IS-IS, and
provides configuration examples.
6.1 Basic Concepts of IS-IS
As an IGP, IS-IS is used inside an AS. IS-IS is a link-state protocol. It uses the SPF algorithm
to calculate routes.
6.2 IS-IS Features Supported by the S6700
The S6700 supports various Intermediate System-to-Intermediate System (IS-IS) protocol
features, including multi-instance, multi-process, hot standby (HSB), multi-topology, local
multicast-topology (MT), traffic engineering (TE), DiffServ-aware traffic engineering (DS-TE),
administrative tags, Link State Protocol Data Unit (LSP) fragment extension, dynamic host name
exchange, fast convergence, Bidirectional Forwarding Detection (BFD), and three-way
handshake.
6.3 Configuring Basic IPv4 IS-IS Functions
This section describes the procedures for configuring basic IPv4 IS-IS functions, including the
procedures for configuring IS-IS processes and interfaces, to implement communication
between nodes on an IPv4 IS-IS network.
6.4 Establishing or Maintaining IS-IS Neighbor Relationships or Adjacencies
This section describes how to configure the parameters that affect the IS-IS neighbor
relationship.
6.5 Configuring IPv4 IS-IS Route Selection
Configuring IS-IS route selection can achieve refined control over route selection.
6.6 Configuring IPv4 IS-IS Route Summarization
To improve the route searching efficiency and simplify route management on a large-scale IS-
IS network, configure IS-IS route summarization to reduce the number of IS-IS routes in a
routing table.
6.7 Configuring IPv4 IS-IS to Interact with Other Routing Protocols
If other routing protocols are configured on an IS-IS network, you need to configure IS-IS to
interact with these protocols to ensure successful communication between them.
6.8 Configuring the IPv4 IS-IS Route Convergence Speed
S6700 Series Ethernet Switches
Configuration Guide - IP Routing 6 IS-IS Configuration
Issue 01 (2012-03-15) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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