Configuring Ipv4 Is-Is Route Selection - Huawei Quidway NetEngine80E Configuration Manual

HUAWEI NetEngine80E/40E Router
Configuration Guide - IP Routing
Priority
Retransmit Timer Value
Bandwidth-Value
Static Bfd
Dynamic Bfd
Fast-Sense Rpr

7.4 Configuring IPv4 IS-IS Route Selection

Configuring IS-IS route selection can achieve refined control over route selection.
7.4.1 Before You Start
Before configuring IPv4 IS-IS route selection, familiarize yourself with the usage scenario,
complete the pre-configuration tasks, and obtain the data required for the configuration.
Applicable Environment
After basic IPv4 IS-IS functions are configured, IS-IS routes will be generated, enabling
communication between different nodes on a network.
If multiple routes are available, a route discovered by IS-IS may not the optimal route. This does
not meet network planning requirements nor facilitates traffic management. Therefore, configure
IPv4 IS-IS route selection to implement refined control over route selection.
To implement refined control over IPv4 IS-IS route selection, perform the following operations:
l
l
l
l
l
l
l
Pre-configuration Tasks
Before configuring IPv4 IS-IS route selection, complete the following tasks:
l
l
Issue 02 (2014-09-30)
Configuring the IPv4 IS-IS
NOTE
Changing the IS-IS cost for an interface can achieve the function of controlling route selection, but
requires routes on the interface to be recalculated and reconverged when a network topology changes,
especially on a large-scale network. In addition, the configuration result may not meet your
expectation.
Therefore, the configuration of changing IS-IS costs has best to be finished when configuring basic
IS-IS functions.
Configure IPv4 IS-IS route leaking.
Configure principles for selecting equal-cost IPv4 IS-IS routes.
Filter IPv4 IS-IS routes.
Configure an overload bit for an IPv4 IS-IS device.
Configuring IS-IS to Generate IPv4 Default Routes
Configuring an IPv4 IS-IS Interface to Automatically Adjust the Link Cost
Configuring IP addresses for interfaces to ensure that neighboring nodes are reachable at
the network layer
Configuring Basic IPv4 IS-IS Functions
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
: L1 64 L2 64
: L12 5
: Low 100000000 High
: NO
: NO
: NO
Interfaces.
7 IS-IS Configuration
0
524