POLICY REQUIREMENTS FOR INTER ADMINISTRATIVE DOMAIN ROUTING
Abstract:
The purpose of this memo is to focus discussion on particular problems in the Internet and possible methods of solution. No proposed solutions in this document are intended as standards for the Internet. Rather, it is hoped that a general consensus will emerge as to the appropriate solution to such problems, leading eventually to the development and adoption of standards. Distribution of this memo is unlimited. Efforts are now underway to develop a new generation of routing protocol that will allow each Administrative Domain (AD) in the growing Internet (and internets in general) to independently express and enforce policies regarding the flow of packets to, from, and through its resources. (FOOTNOTE 1: The material presented here incorporates discussions held with members of the IAB Autonomous Networks Research Group and the Open Routing Working Group.) This document articulates the requirements for policy based routing and should be used as input to the functional specification and evaluation of proposed protocols. Two critical assumptions will shape the type of routing mechanism that is devised: (1) the topological organization of ADs, and (2) the type and variability of policies expressed by ADs. After justifying our assumptions regarding AD topology we present a taxonomy, and specific examples, of policies that must be supported by a PR protocol. We conclude with a brief discussion of policy routing mechanisms proposed in previous RFCs (827, 1102, 1104, 1105). Future RFCs will elaborate on the architecture and protocols needed to support the requirements presented here. 3
Citations
| 1790 | Congestion avoidance and control – Jacobson - 1988 |
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| 146 | The landmark hierarchy: A new hierarchy for routing in very large networks – Tsuchiya - 1988 |
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| 17 | Visa Protocols for Controlling Inter-Organizational Datagram Flow – Estrin, Mogul, et al. - 1989 |
| 13 | Exterior Gateway Protocol – Rosen - 1982 |
| 12 | Policy Routing – Clark - 1989 |
| 5 | Models of Policy Based – Braun - 1989 |
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| 4 | Security Issues – Estrin, Tsudik |
| 4 | The Dissimilar Gateway Protocol – Little |
| 4 | Reducing the Vulnerability of Dynamic Computer Networks USC/Information Sciences Institute – Finn - 1988 |
| 4 | Nakassis Routing Algorithm for Open Routing, Unpublished paper, Available from the author at the National Institute of Standards and Technology (formerly – unknown authors |
