9

Route Aggregation Example

The figure below shows the network configuration for the example.

24.46/30

Nokia

 

Platform B 24.49/30

24.50/30

Nokia Platform C 24.53/30

Backbone Area

all routers are running OSPF

24.54/30

 

 

 

 

 

 

Network Prefix: 192.168.0.0

Nokia

 

 

 

 

 

 

Platform D

24.45/30

 

 

 

 

 

 

 

 

Nokia Platform A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

26.2/24

 

 

Advertise

 

 

 

 

 

 

 

 

 

 

 

 

 

 

192.168.24.0

 

 

 

 

 

 

 

Backbone running RIPv1

 

 

 

 

 

 

 

 

26.1/24

 

 

 

 

 

 

 

 

 

 

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In the preceding figure Nokia Platform B, Nokia Platform C, and Nokia Platform D are running OSPF with the backbone area. Nokia Platform A is running OSPF on one interface and RIP 1 on the backbone side interface.

Assume that all the interfaces are configured with the addresses and the routing protocol as shown in the figure. Configure route aggregation of 192.168.24.0/24 from the OSPF side to the RIP side.

1.Initiate a Network Voyager session to Nokia Platform A.

2.Click Route Aggregation under Configuration > Routing Configuration in the tree view.

3.Enter 192.168.24.0 in the Prefix for New Aggregate text box and enter 24 in the Mask Length edit box; then click Apply.

4.Click OSPF2 in the New Contributing Protocol drop-down list; then click Apply.

5.Click on in the Contribute all matching routes from OSPF2 field; then click Apply.

6.Click direct in the New Contributing Protocol drop-down list; then click Apply.

7.Click on in the Contribute All Matching Routes from direct field; then click Apply.

8.Click Top.

9.Click the Route Redistribution link in the Routing Configuration section.

10.Click the Aggregates Routes link in the Redistribute to RIP section.

11.Click on radio button in the Export all aggregates into RIP field; then click Apply.

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