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

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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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