If only a single link is flapping it is not going to affect the summary of the area border router since it summarizes whole networks and does not advertise individual IP addresses.

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Interview Question for Technical Support Engineer at OPNET:

A detailed OSPF routing question. Lots of routers on a network and an area border router (ABR). One of the router links in the network keeps flapping, and so what will the ABR send as a summary?

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