A new Request for Comments is now available in online RFC libraries.


        RFC 1940:

        Title:      Source Demand Routing:
                    Packet Format and Forwarding Specification
                    (Version 1).
        Author:     D. Estrin, T. Li, Y. Rekhter, K. Varadhan, 
                    D. Zappala
        Date:       May 1996
        Mailbox:    estrin@isi.edu, tli@cisco.com,
                    yakov@cisco.com, kannan@isi.edu,
                    daniel@isi.edu
        Pages:      27
        Characters: 60,858
        Updates/Obsoletes:  none

        URL:        ftp://ds.internic.net/rfc/rfc1940.txt


The purpose of SDRP (Source Demand Routing) is to support
source-initiated selection of routes to complement the route selection
provided by existing routing protocols for both inter-domain and
intra-domain routes. This document refers to such source-initiated
routes as "SDRP routes".  This document describes the packet format
and forwarding procedure for SDRP.  It also describes procedures for
ascertaining feasibility of SDRP routes.  Other components not
described here are routing information distribution and route
computation.  This portion of the protocol may initially be used with
manually configured routes. The same packet format and processing will
be usable with dynamic route information distribution and computation
methods under development.  This RFC is the product of the Source
Demand Routing Working Group of the IETF.

This memo provides information for the Internet community.  This memo
does not specify an Internet standard of any kind.  Distribution of
this memo is unlimited.

This announcement is sent to the IETF list and the RFC-DIST list.
Requests to be added to or deleted from the IETF distribution list
should be sent to IETF-REQUEST@CNRI.RESTON.VA.US.  Requests to be
added to or deleted from the RFC-DIST distribution list should
be sent to RFC-DIST-REQUEST@ISI.EDU.

Details on obtaining RFCs via FTP or EMAIL may be obtained by sending
an EMAIL message to rfc-info@ISI.EDU with the message body 
help: ways_to_get_rfcs.  For example:

        To: rfc-info@ISI.EDU
        Subject: getting rfcs

        help: ways_to_get_rfcs

Requests for special distribution should be addressed to either the
author of the RFC in question, or to admin@DS.INTERNIC.NET.  Unless
specifically noted otherwise on the RFC itself, all RFCs are for
unlimited distribution.

Submissions for Requests for Comments should be sent to
RFC-EDITOR@ISI.EDU.  Please consult RFC 1543, Instructions to RFC
Authors, for further information.


Joyce K. Reynolds
USC/Information Sciences Institute