Generic Requirements for Provider Provisioned Virtual Private Networks (Ppvpn)

By Nagarajan, A.

Book Id: WPLBN0000693799
Format Type: PDF eBook:
File Size: 0.1 MB
Reproduction Date: 2005

Title:	Generic Requirements for Provider Provisioned Virtual Private Networks (Ppvpn)
Author:	Nagarajan, A.
Volume:
Language:	English
Subject:	Topology, Engineering, Math
Collections:	Technical eBooks and Manuals Collection, Technical eBooks Collection
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Citation APA MLA Chicago Nagarajan, B. A. (n.d.). Generic Requirements for Provider Provisioned Virtual Private Networks (Ppvpn). Retrieved from http://www.gutenberg.cc/

Description
Technical Reference Publication

Excerpt
Introduction: This document is an output of the design team formed to develop requirements for PPVPNs in the Provider Provisioned Virtual Private Networks (PPVPN) working group and provides requirements that are generic to both Layer 2 Virtual Private Networks (L2VPN) and Layer 3 Virtual Private Networks (L3VPN). This document discusses generic PPVPN requirements categorized as service, provider and engineering requirements. These are independent of any particular type of PPVPN technology. In other words, all PPVPN technologies are expected to meet the umbrella set of requirements described in this document. PPVPNs may be constructed across single or multiple provider networks and/or Autonomous Systems (ASes). In most cases the generic requirements described in this document are independent of the deployment scenario. However, specific requirements that differ based on whether the PPVPN is deployed across single or multiple providers (and/or ASes) will be pointed out in the document. Specific requirements related to Layer 3 PPVPNs are described in [L3REQTS]. Similarly, requirements that are specific to layer 2 PPVPNs are described in [L2REQTS].

Table of Contents
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 3