Configuring is-is global parameters – Dell POWEREDGE M1000E User Manual

Page 962

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Cisco Catalyst Blade Switch 3130 and 3032 for Dell Software Configuration Guide

OL-13270-03

Chapter 38 Configuring IP Unicast Routing

Configuring ISO CLNS Routing

To disable IS-IS routing, use the no router isis area-tag router configuration command.

This example shows how to configure three routers to run conventional IS-IS as an IP routing protocol.
In conventional IS-IS, all routers act as Level 1 and Level 2 routers (by default).

Router A

Switch(config)# clns routing

Switch(config)# router isis

Switch(config-router)# net 49.0001.0000.0000.000a.00

Switch(config-router)# exit

Switch(config)# interface gigabitethernet1/0/1

Switch(config-if)# ip router isis

Switch(config-if)# clns router isis

Switch(config)# interface gigabitethernet1/0/2

Switch(config-if)# ip router isis

Switch(config-if)# clns router isis

Switch(config-router)# exit

Router B

Switch(config)# clns routing

Switch(config)# router isis

Switch(config-router)# net 49.0001.0000.0000.000b.00

Switch(config-router)# exit

Switch(config)# interface gigabitethernet1/0/1

Switch(config-if)# ip router isis

Switch(config-if)# clns router isis

Switch(config)# interface gigabitethernet1/0/2

Switch(config-if)# ip router isis

Switch(config-if)# clns router isis

Switch(config-router)# exit

Router C

Switch(config)# clns routing

Switch(config)# router isis

Switch(config-router)# net 49.0001.0000.0000.000c.00

Switch(config-router)# exit

Switch(config)# interface gigabitethernet1/0/1

Switch(config-if)# ip router isis

Switch(config-if)# clns router isis

Switch(config)# interface gigabitethernet1/0/2

Switch(config-if)# ip router isis

Switch(config-if)# clns router isis

Switch(config-router)# exit

Configuring IS-IS Global Parameters

These are some optional IS-IS global parameters that you can configure:

•

You can force a default route into an IS-IS routing domain by configuring a default route controlled
by a route map. You can also specify other filtering options configurable under a route map.

•

You can configure the router to ignore IS-IS LSPs that are received with internal checksum errors
or to purge corrupted LSPs, which causes the initiator of the LSP to regenerate it.

•

You can assign passwords to areas and domains.

•

You can create aggregate addresses that are represented in the routing table by a summary address
(route-summarization). Routes learned from other routing protocols can also be summarized. The
metric used to advertise the summary is the smallest metric of all the specific routes.

•

You can set an overload bit.

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