A BGP speaker can send Outbound Route Filters (ORF) to a peer. The
peer uses ORFs to filter routing updates that it sends to the BGP
speaker. Using ORF, a BGP speaker can realize a "route pull"
paradigm, in which the BGP speaker, on demand, pulls certain routes
from the peer.
This document defines a new Outbound Route Filter (ORF) type, called
the "Covering Prefixes ORF (CP-ORF)". CP-ORF is applicable in
Virtual Hub-and-Spoke VPNs. It also is applicable in BGP/MPLS
Ethernet VPN (EVPN) networks.
Working Group Summary
There has been no controversy relating to the technical aspect of
this Document. A late IPR disclosure was made against this document
(see question 8). The WG did not oppose to the progress of the
The WG Chairs are aware of one implementation plan of the
technologies described in this document. It should be noted that the
contexts (Virtual Hub-and-Spoke VPNs and EVPNs) in which this
Document applies are fairly recent thus explaining that
implementations are not yet available
Martin Vigoureux is the Document Shepherd
Adrian Farrel is the responsible AD