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IP routing conﬁguration examples 133

Step Action

Conﬁgure the IP preﬁx list on ERS3 named Preﬁx_1 with the IP

address 10.1.240.0.

5530-24TFD(config)# ip prefix-list Prefix_1

10.1.240.0/20 ge 20 le 32

Conﬁgure the route policy named Policy_Rip with match cr iteria

using the IP preﬁx conﬁgured in step 1.

5530-24TFD(config)# route-map rip_pol_1 1

5530-24TFD(config)# route-map rip_pol_1 1 enable

5530-24TFD(config)# route-map rip_pol_1 permit 1 enable

5530-24TFD(config)# route-map rip_pol_1 permit 1

set-injectlist Prefix_1

Add the route policy created in step 2 to both RIP core ports.

5530-24TFD(config)# interface FastEthernet 2/1

5530-24TFD(config-if)# brouter vlan 2091 subnet

10.1.1.14/30

5530-24TFD(config-if)# ip rip enable

5530-24TFD(config-if)# ip rip out-policy rip_pol_1

5530-24TFD(config)# interface FastEthernet 2/8

5530-24TFD(config-if)# brouter vlan 2090 subnet

10.1.1.6/30

5530-24TFD(config-if)# ip rip enable

5530-24TFD(config-if)# ip rip out-policy rip_pol_1

—End—

To limit the advertising of routes using the announce policy from the routing

table, a route policy should be created to deny the route. To conﬁgure the

RIP announce policy with a limited announce policy on ERS3, use the

following conﬁguration steps:

Step Action

Conﬁgure the IP preﬁx list named Preﬁx_2 with the IP address

10.1.240.0.

5530-24TFD(config)# ip prefix-list Prefix_2

10.1.240.0/20 ge 20 le 20

Conﬁgure the IP route policy named rip_pol_2 with match criteria

using the IP preﬁx conﬁgured in Step 1.

5530-24TFD(config)# route-map rip_pol_2 deny 1

enable match network Prefix_2

Nortel Ethernet Routing Switch 5500 Series

Conﬁguration-IP Routing Protocols

NN47200-503 03.01 Standard

5.1 27 August 2007