Sink-Assisted Routing Protocol (SARP) For General IP Multicasting

Document Type Expired Internet-Draft (individual)
Authors Tarek Saadawi  , Myung Lee  , Yong Xie 
Last updated 1996-08-19
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Intended RFC status (None)
Expired & archived
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IESG IESG state Expired
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


This Internet-Draft proposes a routing protocol for supporting real-time multicast service over the Internet. The work is motivated by the fact that the existing multicast routing protocols are designed under the assumption of symmetric paths, which is not necessarily true especially in the real-time applications. The essence of the proposed protocol is using the inter-subnet Routing Guide Message (RGM) flows generated by sink-subnets to form multicast spanning trees. The underlying algorithms enable source and intermediate nodes to construct minimal end-to-end delay paths to sink-subnets based on the path and the session information conveyed by incident RGM-flows.


Tarek Saadawi (
Myung Lee (
Yong Xie (

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)