Nortel Networks NN47200-503 manual Enable Ospf on R1, Ospf stub area example

IP routing configuration examples 141

OSPF stub area example

Note: AS-external LSAs are not flooded into a stub area. Instead, only one default route to external destinations is distributed into the stub area by the stub ABR router. The area default cost specifies the cost for advertising the default route into stub area by the ABR.

Use the procedure outlined below to perform the stub area configuration illustrated above:

Note: This example assumes that global IP routing has been enabled on the switch. Global IP routing is enabled on the switch in Global Configuration mode using the ip routing command.

Step Action

1Configure router R1.

a.Configure the OSPF interface on R1.

Configure port 2/6 as a brouter port in VLAN 100.

5530-24TFD(config)# interface fast 2/6

5530-24TFD(config-if)# brouter port 2/6 vlan 100 subnet 10.1.1.18/30

b.Configure VLAN 2 on R1.

Create VLAN 2 and assign an IP address to it.

5530-24TFD(config)# vlan create 2 type port

5530-24TFD(config)# vlan mem add 2 1/20

5530-24TFD(config)# interface vlan 2

5530-24TFD(config-if)# ip address 172.3.3.1 255.255.255.0

c.Enable OSPF on R1.

Nortel Ethernet Routing Switch 5500 Series

Configuration-IP Routing Protocols

NN47200-503 03.01 Standard

5.127 August 2007

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