OSPF Example

This example consists of:

  • Enabling OSPF with backbone area (Area 0) on one interface
  • Enabling OSPF on Area 1 on another interface
  • Summarizing/aggregating 205.226.24 network from Area 0 to Area 1
  • In this diagram:

  • GW-1 and GW-3 are gateways.
  • Controller 2 is an area border router with
  • Controller 1 and GW-1 are on the backbone area.
  • GW-3 is on the area 1.
  • The routes in Area 0 are learned by GW-3 when the area border router (Controller 2) injects summary link state advertisements (LSAs) into Area 1.



    1. First configure the interfaces as in Interface Configuration Example.
    2. Initiate a clearVISN IP Switch Manager session to Controller 2.
    3. Click .
    4. Click the OSPF link in the Routing Configuration section.
    5. Click the backbone area in the drop-down list for atm-s1p1c0s2p1c0.
    6. Click .
    7. In the Add New OSPF Area field enter: 1.
    8. Click .
    9. Click .
    10. In the Network Prefix for new Area 1 Network edit box enter: 205.226.24.0.
    11. In the Mask Length edit box enter: 24.
    12. Click .
    13. Click the 1 area in the drop-down list for atm-s1p1c0s3p1c0.
    14. Click .
    15. Initiate a clearVISN IP Switch Manager session to GW-3.
    16. Click .
    17. Click the OSPF link in the Routing Configuration section.
    18. In the Add New OSPF Area field enter: 1.
    19. Click .
    20. Click .
    21. Click the 1 area in the drop-down list for atm-s1p1c0.
    22. Click .


    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