Technical Summary
Many Service Providers offer Virtual Private Network ("VPN") services
to their customers, using a technique in which customer edge routers
("CE routers") are routing peers of provider edge routers ("PE
routers"). The Border Gateway Protocol ("BGP") is used to distribute
the customer's routes across the provider's IP backbone network, and
Multiprotocol Label Switching ("MPLS") is used to tunnel customer
packets across the provider's backbone. This is known as a "BGP/MPLS
IP VPN", as described in RFC 2547bis. The base specification for
BGP/MPLS IP VPNs presumes that the routing protocol on the interface
between a PE router and a CE router is BGP. This document extends
that specification by allowing the routing protocol on the PE/CE
interface to be the Open Shortest Path First ("OSPF") protocol.
Working Group Summary
There was support for this document in the Working Group.
Protocol Quality
This document has been reviewed for the IESG by Thomas Narten. The
OSPF WG has also reviewed the OSPF extensions.