When using source routing, each packet to be routed carries in its header the complete, ordered list of nodes through which the packet must pass.
A key advantage of source routing is that intermediate hops do not need to maintain routing information in order to route the packets they receive, since the packets themselves already contain all of the necessary routing information.
A node receiving a Route Error packet simply searches its Route Cache for any routes using this hop. Chair's Address The Working Group can be contacted via its current chairs: M. We currently represent the Route Cache as a directed acyclic tree of paths branching out from a root that represents the node owning the Route Cache. The current members of the CMU Monarch Project include: - Josh Broch - Yih-Chun Hu - Jorjeta Jetcheva - David B. Maltz Areas for Refinement We are currently working to refine the DSR protocol in the following ways: - Improve the algorithms and data structures used by the Route Cache. Status of This Memo This document is a submission to the Mobile Ad-hoc Networks (manet) Working Group of the Internet Engineering Task Force (IETF). Internet-Drafts are working documents of the Internet Engineering Task Force (IETF), its areas, and its working groups. Comments should be submitted to the Working Group mailing list at "[email protected]". Note that other groups may also distribute working documents as Internet-Drafts.