Wednesday, March 9, 2011

Lab 30 - OSPF On Demand Circuits

Prerequisites: CCNP level skills.

Note!
Use the configuration from Lab6.

Topology

Pic. 1 - OSPF Topology.
Icons designed by: Andrzej Szoblik - http://www.newo.pl

Task 1
Configure OSPF so that there is no hello packets exchanged on point-to-point link between R1 and R3. LSAs should not be refreshed every 30 minutes either.

Task 1
Configure OSPF so that there is no hello packets exchanged on point-to-point link between R1 and R3. LSAs should not be refreshed every 30 minutes either.

R1 Configuration:
!
interface Serial0/1
 ip address 10.1.13.1 255.255.255.0
 ip ospf demand-circuit
!

Note!
The 'ip ospf demand-circuit' is configured on one end of the connection. It is going to re-establish OSPF adjacency and negotiate the required features.

Verification:
Pic. 2 - OSPF Parameters on S0/1.

Note!
The neighbor adjacency is built again.

Pic. 3 - R1's Neighbors.