
117356-A Rev. A E-1
Appendix E
IP/OSPF Configuration
The IP/OSPF configuration in Figure E-1 shows an AS divided into different types
of OSPF areas using several types of OSPF routers and interfaces as well as
variable-length subnetting. This appendix describes parameter settings for Router
1 through Router 6. Routers W through Z and A through D are included on the
network map for completion.
In the configuration in F
igure E-1:
• The OSPF Area Authentication parameter is set to none for all areas.
• All Timer parameter values are left at their defaults (Hello, Dead, and Poll
Interval).
• No virtual links are configured.
• Route summarization is not used.
• The frame relay cloud is set to the default management type. It is non-fully
meshed with all Group Mode PVCs.
• There are three area border routers (Router 2, Router 3, and Router 4), two
internal backbone routers (Router 1 and Router 5) and one AS boundary
router (Router 6 has an Ethernet interface using RIP).
• R2 is the designated router for the FDDI segment. Router 4 must be the
designated router for the frame relay cloud.
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