draft-rekhter-ppvpn-gre-ip-2547-00.txt

[Yakov Rekhter <yakov@juniper.net>]

Summary for Sub-IP Area

1. Summary

   The base specification for RFC2547 VPNs, i.e., draft-rosen-
   rfc2547bis-03.txt, specifies the procedures for providing a
   particular style of VPN, using MPLS label switched paths between
   Provider Edge (PE) routers. The base specification does not discuss
   other types of tunnels between PE routers.

   This draft extends the base specification by specifying the
   procedures for providing the RFC2547 style of VPN using GRE or IP
   tunnels (rather than MPLS LSPs) between PE routers.


2. Where does it fit in the Picture of the Sub-IP Work

   This work fits squarely in the PPVPN box.


3. Why is it Targeted at this WG

   The WG is chartered with considering the RFC2547 style of VPN. This
   draft specifies procedures to allow that style of VPN to run on
   networks which do not implement MPLS in the core switches, and/or in
   environments in which increased security is needed.

   Thus the draft allows the RFC2547 style of VPN to meet additional
   requirements that are not met by the base specification.


4. Justification

   The WG should consider this document as it extends a style of VPN
   explicitly called out in the charter so that it becomes applicable to
   a wider range of IP-based backbone environments.