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Enabling RIP
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Objectives
Upon completing this lesson, you will beable to:
Describe the features and operation of RIP
Use Cisco IOS commands to configure dynamicrouting using RIP,
given a functioning router
Use show and debug commands to identifyanomalies in dynamic
routing operation using
RIP, given an operational router
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Maximum is 6 paths (default = 4)
Hop-count metric selects the path (Max=15)
Routes update are broadcast every 30 seconds
RIP Overview
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Load balancing with RIP
RIP is capable of load balancing over as many as six equal-cost
paths,with four paths being default. RIP performs what is referred
to asround robin load balancing.
Router(config-router)#maximum-paths [number]
56K
BHM
3
2
1
4
GAD
64K
155M
1.544M
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Router configuration Select routing protocols.
Specify networks orinterfaces.
IP RoutingConfiguration Tasks
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Starts the RIP routing process
Router(config)#router rip
Router(config-router)#network network-number
Selects participating attached networks
Requires a major classful network number
RIP Configuration
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RIP Configuration Example
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RIP Configuration (Cont.)
Router(config-if)#no ip split-horizon
To disable split horizon:
Router(config-router)#timers basic update invalid
holddown flush [sleeptime]
To change the holddown timer:
Router(config-router)#passive-interface interfaceDisable the
sending of routing updates on specified interfaces:
To change the update internal:
Router(config-router)#update-timer seconds
Router(config)#no router rip
To disable RIP
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Verifying the RIP Configuration
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debug ip rip Command
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Summary
RIP is a distance vector routing protocol that uses hopcount as
the metric for route selection and broadcastsrouting updates every
30 seconds.
To enable a dynamic routing protocol, you will select the
routing protocol and then assign IP network numbers.
The router rip command specifies RIP as the routingprotocol. The
network command identifies a participatingattached network.
The show ip commands display information aboutrouting protocols
and the routing table.
Use the debug ip rip command to display information onRIP
routing transactions.
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