Again OSPF over NBMA

good one by Jeremy

This is again the same topology which I already practiced once by following Jeremy. Now after CCNA i wanted to try it by myself. Below are some problems faced and what I learned:
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1> Always use 3600 router for config. Reason: Very stable with GNS3. No Dynamips crashing anymore.
2> Configure all the interfaces first and then configure the ospf. You may face routes not getting populated.
    USE : [clear ip ospf process] to restart the ospf process on all routers
3> Interfaces were going up and down frequently after initializing OSPF. User
no frame-relay inverse-arp
to resolve the issue while configuring FR. this helps in solving my issue.

Took 2 nights, to do this. But at last did it.