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timwall01
Beginner

Route redistribution

AS100 to AS300 represent Transit providers, and AS400 is core network.The core network is using OSPF/IBGP

How can we make one change on router 2 and have that propagate to routers 1 and 3 without any further changes being made

We would amend a prefix-list which would be related to a route-map to append a community value on router2 only.

The prefix would exist in the OSPF routing table of the core

This then would be advertised to AS200 as the change was applied on this router. We would then need the prefix with the community value to be advertised to router1 and router3. Is it possible without using RR.

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