Aggregation of RSVP for IP4 and IP6 Reservations

Document Type Expired Internet-Draft (individual)
Author Fred Baker 
Last updated 1999-06-28
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


A key problem in the design of RSVP version 1 is, as noted in its applicability statement, that it lacks facilities for aggregation of individual reserved sessions into a common class. The use of such aggregation is recommended in the paper by Clark, Shenker, and Zhang in SIGCOMM '92, and required for scalability. This document describes the use of a single RSVP reservation to aggregate other RSVP reservations across a transit routing region, in a manner conceptually similar to the use of Virtual Paths in an ATM network. It proposes a way to dynamically create the aggregate reservation, classify the traffic for which the aggregate reservation applies, determine how much bandwidth is needed to achieve the requirement, and recover the bandwidth when the sub-reservations are no longer required. It also contains recommendations concerning algorithms and policies for predictive reservations.


Fred Baker (

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