ISPs White Papers
RFC 2547bis: BGP/MPLS VPN Hierarchical and Recursive Applications
Overview
The objective of this paper is to provide a detailed understanding of the operation of hierarchical and recursive BGP/MPLS VPNs as described in RFC 2547bis. As BGP/MPLS VPNs are deployed in the Internet, it is possible that the customer of a BGP/MPLS VPN service provider is another service provider rather than an enterprise customer. For this scenario, the customer service provider depends on the BGP/MPLS VPN service provider to deliver a transport service between the customer service provider’s POPs or regional networks. If all of the customer service provider’s sites have the same AS number, then the BGP/MPLS VPN transit service provider delivers a carrier-of-carriers service. If the customer service provider’s sites have different AS numbers, then the BGP/MPLS VPN transit service provider supports multi-AS operations.
This paper assumes that you have a basic understanding of BGP/MPLS VPNs as described in RFC 2547bis and an understanding of the operation of OSPF, IS-IS, BGP (both IBGP and EBGP), LDP, RSVP, and MPLS.
| Publisher | Juniper Networks | File Format | PDF, requires Acrobat Rdr 5 |
|---|---|---|---|
| Date Published | June 2001 | Downloads | 115 |
| Format | White Papers | ||
| Topics | |||


