Friday, July 8, 2011

LAB: OSPF OSPF Features

- Configure SW4 so that it goes not generate a log message upon receipt of a Type-6 LSA advertisement.
- Configure SW4 so that it does not take the MTU value into account when establishing adjacencies on its Port-Channel1 interface.
- Configure SW4 to reflect the following output:

Neighbor ID     Pri   State           Dead Time   Address         Interface
Rack1SW2          1   FULL/BDR        00:00:35    155.1.108.8     Port-channel1


commands:

SW4:
ip host Rack1SW2 150.1.8.8
!
ip ospf name-lookup
!
interface Port-channel1
ip ospf mtu-ignore
!
router ospf 1
ignore lsa mospf
cisco's OSPV v2 doesnt support multicast OSPF which is advertised through lsa type6, to disable generating of log message when an LSA type6 received by the router "ignore lsa mospf" is used.

if the 2 routers having different mtu, it will not formed neighbor relationship. to ignore the mtu, "ip ospf mtu-ignore is used.

"ip ospf name-lookup" cmd is used by the router to perform a dns lookup to ospf neighbhors using their router-id.

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