UniDirectional Link Routing (udlr)
----------------------------------

 Charter
 Last Modified: 2002-06-24

 Current Status: Active Working Group

 Chair(s):
     Emmanuel Duros  <emmanuel.duros@udcast.com>
     Hidetaka Izumiyama  <izu@jsat.net>

 Routing Area Director(s):
     Bill Fenner  <fenner@research.att.com>
     Alex Zinin  <zinin@psg.com>

 Routing Area Advisor:
     Bill Fenner  <fenner@research.att.com>

 Mailing Lists: 
     General Discussion:udlr@udcast.com
     To Subscribe:      http://www.udcast.com/mailman/listinfo/udlr
     Archive:           http://www.udcast.com/pipermail/udlr

Description of Working Group:

Note: An alternate site for UDLR's files is: 
http://www.udcast.com/udlr 


The UDLR working group issued the RFC 3077 in March 2001. This RFC
describes a link-layer tunneling mechanism (LLTM) for supporting
unidirectional links (UDL) in the Internet.

During the design of this mechanism by the UDLR working group, several
implementations evolved. These implementations are fully interoperable
and are currently being used in several operational environments.

As of the publication of RFC 3077, the working group has decided to
further their work by issuing the following objectives:

1. Produce informational rfc's that describe in detail the requirements
   of example case study scenarios as listed below. Note that these
   scenarios relate to field experiments that are being undertaken 
   based on the LLTM mechanism:

   a) configuration of multicast routing protocols over a 
      unidirectional link

   b) configuration of unicast routing protocols over a unidirectional
      link

   c) securing operation of a UDLR network

2. Identify security holes

3. Push the current document (RFC 3077) status to Draft Standard.

 Goals and Milestones:

   Dec 01       Submit I-D on the configuration of multicast routing protocols 
                over a UDL 

   Dec 01       Submit I-D on the configuration of unicast routing protocols 
                over a UDL 

   Dec 01       Submit I-D on securing operation of a UDLR network 

   Mar 02       Submit the Link Layer Tunneling Mechanism to the IESG for 
                consideration as a Draft Standard 

   Jul 02       Submit Internet-drafts as Informational RFCs 


 Internet-Drafts:

Posted Revised         I-D Title   <Filename>
------ ------- --------------------------------------------
Oct 01 Jun 02   <draft-ietf-udlr-dvmrp-conf-03.txt>
                Configuration of DVMRP over a UniDirectional Link 

Mar 02 Mar 02   <draft-ietf-udlr-multicast-issues-00.txt>
                Identifying Multicast Implications in a Link-Layer Tunneling 
                Mechanism for Unidirectional Links 

 Request For Comments:

  RFC   Stat Published     Title
------- -- ----------- ------------------------------------
RFC3077 PS   Mar 01    A Link Layer Tunneling Mechanism for Unidirectional 
                       Links