Installation and Getting Started Guide

Table 7.1: RIP Global Parameters

Parameter

Description

Default

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RIP state

Routing Information Protocol version 2

Disabled

7-3

 

Note: You can change the RIP version on individual

 

 

 

interfaces. See Table 7.2 on page 7-3.

 

 

 

 

 

 

Administrative

The administrative distance is a numeric value

120

7-6

distance

assigned to each type of route on the router.

 

 

 

When the routing switch is selecting from among

 

 

 

multiple routes (sometimes of different origins) to the

 

 

 

same destination, the routing switch compares the

 

 

 

administrative distances of the routes and selects the

 

 

 

route with the lowest administrative distance.

 

 

 

This parameter applies to routes originated by RIP.

 

 

 

The administrative distance stays with a route when it

 

 

 

is redistributed into other routing protocols.

 

 

 

 

 

 

Redistribution

RIP can redistribute routes from other routing

Disabled

7-7

 

protocols such as OSPF and BGP4 into RIP. A

 

 

 

redistributed route is one that a routing switch learns

 

 

 

through another protocol, then distributes into RIP.

 

 

 

 

 

 

Redistribution

RIP assigns a RIP metric (cost) to each external route

1 (one)

7-8

metric

redistributed from another routing protocol into RIP.

 

 

 

An external route is a route with at least one hop

 

 

 

(packets must travel through at least one other router

 

 

 

to reach the destination).

 

 

 

This parameter applies to routes that are redistributed

 

 

 

from other protocols into RIP.

 

 

 

 

 

 

Update interval

How often the routing switch sends route updates to

30 seconds

7-10

 

its RIP neighbors

 

 

 

 

 

 

Advertising and

The router can advertise default routes to its RIP

Disabled

7-10

learning default

neighbors and learn default routes from the

 

 

routes

neighbors.

 

 

 

Note: You also can enable or disable this parameter

 

 

 

on an individual interface basis. See Table 7.2 on

 

 

 

page 7-3.

 

 

 

 

 

 

Advertising and

The routing switch learns and advertises RIP routes

Learning and

7-11

learning with

with all its neighbors by default. You can prevent the

advertising permitted

 

specific

routing switch from advertising routes to specific

for all neighbors

 

neighbors

neighbors or learning routes from specific neighbors.

 

 

 

 

 

 

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