Aggregation Policies over RSVP Tunnels

Abstract — IETF’s integrated service with resource aggregation techniques provide a mechanism to reduce the RSVP states kept at router. Therefore, it reduces the number of RSVP refresh messages exchanged across routers. But the high frequency of setup messages exchanged between the edge routers can hinders the performance of aggregation. In this paper, we look at the management of the aggregation of resources over IP-in-IP tunnel with a view of reducing the setup messages. We develop and compare the cost functions of three aggregation control policies: the Temporal Operating Policy, the Cardinal Operating Policy, and the Resource Threshold Operating Policy. We also figure out the conditions under which the operating costs of these policies are minimum. Furthermore, we compare the performance of these policies under different conditions and shown that the Temporal Operating Policy will be more cost effective than the other two policies. I