Changing the administrative distance, Configuring redistribution, Configuring redistribution filters – Brocade Communications Systems Layer 3 Routing Configuration ICX 6650 User Manual

Page 164

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Brocade ICX 6650 Layer 3 Routing Configuration Guide

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RIP parameter configuration

Brocade(config-rip-router)#offset-list 21 in 10 ethernet 1/1/2

Changing the administrative distance

By default, the Layer 3 Switch assigns the default RIP administrative distance (120) to RIP routes.
When comparing routes based on administrative distance, the Layer 3 Switch selects the route with
the lower distance. You can change the administrative distance for RIP routes.

NOTE

Refer to

“Changing administrative distances”

on page 313 for the default distances for all route

sources.

To change the administrative distance for RIP routes, enter the distance command.

Brocade(config-rip-router)#distance 140

This command changes the administrative distance to 140 for all RIP routes.

Syntax: [no] distance num

The num variable specifies a range from 1 through 255.

Configuring redistribution

You can configure the Layer 3 Switch to redistribute routes learned through Open Shortest Path
First (OSPF) or Border Gateway Protocol version 4 (BGP4) into RIP. When you redistribute a route
from one of these other protocols into RIP, the Layer 3 Switch can use RIP to advertise the route to
its RIP neighbors.

To configure redistribution, perform the following tasks:

1. Configure redistribution filters (optional). You can configure filters to permit or deny

redistribution for a route based on its origin (OSPF, BGP4, and so on), the destination network
address, and the route metric. You also can configure a filter to set the metric based on these
criteria.

2. Change the default redistribution metric (optional). The Layer 3 Switch assigns a RIP metric of

1 to each redistributed route by default. You can change the default metric to a value up to 16.

3. Enable redistribution.

NOTE

Do not enable redistribution until you configure the other redistribution parameters.

Configuring redistribution filters

RIP redistribution filters apply to all interfaces. The software uses the filters in ascending
numerical order and immediately takes the action specified by the filter. Thus, if filter 1 denies
redistribution of a given route, the software does not redistribute the route, regardless of whether a
filter with a higher ID would permit redistribution of that route.

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