RFC 3809 (rfc3809) - Page 2 of 25

Generic Requirements for Provider Provisioned Virtual Private Networks (PPVPN)

RFC 3809                         PPVPN                         June 2004


Table of Contents

   1.  Introduction . . . . . . . . . . . . . . . . . . . . . . . . .  3
       1.1. Problem Statement . . . . . . . . . . . . . . . . . . . .  3
       1.2. Deployment Scenarios. . . . . . . . . . . . . . . . . . .  4
       1.3. Outline of this document. . . . . . . . . . . . . . . . .  5
   2.  Contributing Authors . . . . . . . . . . . . . . . . . . . . .  6
   3.  Definitions and Taxonomy . . . . . . . . . . . . . . . . . . .  7
   4.  Service Requirements . . . . . . . . . . . . . . . . . . . . .  7
       4.1. Availability  . . . . . . . . . . . . . . . . . . . . . .  7
       4.2. Stability . . . . . . . . . . . . . . . . . . . . . . . .  8
       4.3. Traffic types . . . . . . . . . . . . . . . . . . . . . .  8
       4.4. Data Isolation. . . . . . . . . . . . . . . . . . . . . .  9
       4.5. Security  . . . . . . . . . . . . . . . . . . . . . . . .  9
            4.5.1. User data security . . . . . . . . . . . . . . . . 10
            4.5.2. Access Control . . . . . . . . . . . . . . . . . . 10
            4.5.3. Site authentication and authorization. . . . . . . 10
            4.5.4. Inter domain security. . . . . . . . . . . . . . . 10
       4.6. Topology  . . . . . . . . . . . . . . . . . . . . . . . . 11
       4.7. Addressing. . . . . . . . . . . . . . . . . . . . . . . . 11
       4.8. Quality of Service  . . . . . . . . . . . . . . . . . . . 11
       4.9. Service Level Agreement and Service Level Specification
            Monitoring and Reporting. . . . . . . . . . . . . . . . . 13
       4.10.Network Resource Partitioning and Sharing between VPNs. . 14
   5.  Provider requirements. . . . . . . . . . . . . . . . . . . . . 14
       5.1. Scalability . . . . . . . . . . . . . . . . . . . . . . . 14
            5.1.1. Service Provider Capacity Sizing Projections . . . 15
            5.1.2. VPN Scalability aspects. . . . . . . . . . . . . . 15
            5.1.3. Solution-Specific Metrics. . . . . . . . . . . . . 17
       5.2. Management  . . . . . . . . . . . . . . . . . . . . . . . 18
            5.2.1. Customer Management of a VPN . . . . . . . . . . . 18
   6.  Engineering requirements . . . . . . . . . . . . . . . . . . . 19
       6.1. Forwarding plane requirements . . . . . . . . . . . . . . 19
       6.2. Control plane requirements. . . . . . . . . . . . . . . . 20
       6.3. Control Plane Containment . . . . . . . . . . . . . . . . 20
       6.4. Requirements related to commonality of PPVPN mechanisms
            with each other and with generic Internet mechanisms. . . 21
       6.5. Interoperability  . . . . . . . . . . . . . . . . . . . . 21
   7.  Security Considerations. . . . . . . . . . . . . . . . . . . . 22
   8.  References . . . . . . . . . . . . . . . . . . . . . . . . . . 23
       8.1. Normative References. . . . . . . . . . . . . . . . . . . 23
       8.2. Informative References. . . . . . . . . . . . . . . . . . 23
   9.  Acknowledgements . . . . . . . . . . . . . . . . . . . . . . . 24
   10. Editor's Address . . . . . . . . . . . . . . . . . . . . . . . 24
   11. Full Copyright Statement . . . . . . . . . . . . . . . . . . . 25






Nagarajan                    Informational