<PPVPN> <draft-wang-cevpn-routing-00.txt>

  Summary

   The PPVPN WG currently supports three types of VPNs: Provider
   Provisioned Network Based Layer 3 VPNs, Provider Provisioned Layer 2
   VPNs and Provider Provisioned CE-based VPNs. This draft discusses
   the issue of supporting routing for CE-based IPsec VPN.

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

   This work fits squarely in the PPVPN box.


Why is it Targeted at this WG

   This draft describes the scenario, requirement, and several
   potential solutions to provide private space routing support for CE-
   based IPsec-based VPNs.

   Under the current PPVPN WG charter, Provider Provisioned CE-based
   VPNs fits the scope of the WG, as stated from the following charter
   extract:
   "This working group is responsible for defining and specifying a
   limited number of sets of solutions for supporting provider-
   provisioned virtual private networks (PPVPNs). The work effort will
   include the development of a framework document, a service
   requirements document and several individual technical approach
   documents that group technologies together to specify specific VPN
   service offerings. The framework will define the common components
   and pieces that are needed to build and deploy a PPVPN. Deployment
   scenarios will include provider-managed VPN components located on
   customer premises."


Justification

   This draft is justified since it targets the routing issue of CE-
   based VPNs, which are identified as a specific type of PPVPNs both
   in the WG charter and the general framework I-D. CE-based VPN has
   its own characteristics and operation requirements, among which
   routing support is one.