Route Aggregation Example

The figure below shows the network configuration for the example:


In the above example Controller 1, Controller 2, and Gateway 2 (GW-2) are running OSPF with the backbone Area. GW-2 is running OSPF on one interface and RIPv1 on the backbone side interface. We are assuming that all the interfaces are configured with the addresses and the routing protocol as shown above. We have to configure route aggregation of 205.226.24.0/24 from the OSPF side to the RIP side.

  1. Initiate a clearVISN IP Switch Manager session to Gateway 1 (GW-1).
  2. Click .
  3. Click the Route Aggregation link in the Routing Configuration section.
  4. Enter in the Add New Aggreate edit box: 205.226.24.0.
  5. Enter in the Mask Length edit box: 24.
  6. Click .
  7. Click OSPF in the New Contributing Protocol drop-down list.
  8. Click .
  9. Click the on radio button in the Contribute All Routes from OSPF field.
  10. Click .
  11. Click direct in the New Contributing Protocol drop-down list.
  12. Click .
  13. Click the on radio button in the Contribute All Routes from direct field.
  14. Click .
  15. Click .
  16. Click .
  17. Click the Route Redistribution link in the Routing Configuration section.
  18. Click the Aggregates to RIP link in the Redistribution table.
  19. Click the on radio button in the Enable Export of Routes from Aggregates into RIP field.
  20. Click .
  21. Click the on radio buttion in the Export All Aggregate Routes into RIP field.
  22. Click .
  23. Enter in the Default Metric for Exporting Routes from Aggregates into RIP edit box: 1.
  24. Click .


If the backbone is running OSPF as well, aggregation can be done only by configuring the 205.226.24.0 network in a different OSPF Area.



Copyright © 1997 Ipsilon Networks, Inc.
Portions copyright © Digital Equipment Corporation 1998. All rights reserved.
Updated January 8, 1998
Send comments to Digital Equipment Corporation, doc-quality@lkg.mts.dec.com