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Cooperative Route Filtering

The cooperative route filtering capability—also referred to as outbound route filtering (ORF)—enables a BGP speaker to send an inbound route filter to a peer and have the peer install it as an outbound filter on the remote end of the session.

You must specify both the type of inbound filter (ORF type) and the direction of ORF capability. The router currently supports prefix-lists as the inbound filter sent by the BGP speaker. The inbound filter sent by the BGP speaker can be a prefix list or a Cisco proprietary prefix list. The BGP speaker must indicate whether it will send inbound filters to peers, accept inbound filters from peers, or both. The router supports both standard and Cisco-proprietary orf messages.

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