Models, implementations and design options for inter-domain policy routing protocols

Interdomain routing protocols are responsible for transferring packets from one administrative domain (AD) to another. Some of the areas connected with interdomain policy routing are examined. A general interaction model of policy routing is discussed, and it is suggested that different policy routing protocols can be derived from some basic model. Criteria are developed for evaluating the effectiveness of policy routing protocols. Merits and shortcomings of all the current protocols for policy routing are discussed. It is shown that none of them is satisfactory for current needs of ADs. Future research models for developing new policy routing protocols are considered.<>