Enabling is-is routing – Dell POWEREDGE M1000E User Manual

Page 961

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38-69

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

This feature is automatically enabled and requires no configuration. For more information on this
feature, see the Integrated IS-IS Nonstop Forwarding (NSF) Awareness Feature Guide at this URL:

http://www.cisco.com/en/US/products/sw/iosswrel/ps1839/products_white_paper09186a00801541c7.s
html

Enabling IS-IS Routing

To enable IS-IS, you specify a name and NET for each routing process. You then enable IS-IS routing
on the interface and specify the area for each instance of the routing process.

Beginning in privileged EXEC mode, follow these steps to enable IS-IS and specify the area for each
instance of the IS-IS routing process:

Command

Purpose

Step 1

configure terminal

Enter global configuration mode.

Step 2

clns routing

Enable ISO connectionless routing on the switch.

Step 3

router isis [area tag]

Enable the IS-IS routing for the specified routing process and enter IS-IS
routing configuration mode.

(Optional) Use the area tag argument to identify the area to which the IS-IS
router is assigned. You must enter a value if you are configuring multiple
IS-IS areas.

The first IS-IS instance configured is Level 1-2 by default. Later instances
are automatically Level 1. You can change the level of routing by using the
is-type global configuration command.

Step 4

net network-entity-title

Configure the NETs for the routing process. If you are configuring
multiarea IS-IS, specify a NET for each routing process. You can specify a
name for a NET and for an address.

Step 5

is-type {level-1 | level-1-2 |
level-2-only
}

(Optional) You can configure the router to act as a Level 1 (station) router,
a Level 2 (area) router for multi-area routing, or both (the default):

level-1—act as a station router only

level-1-2—act as both a station router and an area router

level 2—act as an area router only

Step 6

exit

Return to global configuration mode.

Step 7

interface interface-id

Specify an interface to route IS-IS, and enter interface configuration mode.
If the interface is not already configured as a Layer 3 interface, enter the no
switchport
command to put it into Layer 3 mode.

Step 8

ip router isis [area tag]

Configure an IS-IS routing process for ISO CLNS on the interface and
attach an area designator to the routing process.

Step 9

clns router isis [area tag]

Enable ISO CLNS on the interface.

Step 10

ip address ip-address-mask

Define the IP address for the interface. An IP address is required on all
interfaces in an area enabled for IS-IS if any one interface is configured for
IS-IS routing.

Step 11

end

Return to privileged EXEC mode.

Step 12

show isis [area tag] database detail

Verify your entries.

Step 13

copy running-config startup-config

(Optional) Save your entries in the configuration file.

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