Introducing Project Long Bud: Internet Pilot Project for the Deployment of X.500 Directory Information in Support of X.400 Routing (RFC1802)
Original Publication Date: 1995-Jun-01
Included in the Prior Art Database: 2019-Feb-12
Internet Society Requests For Comment (RFCs)
H. Alvestrand: AUTHOR [+3]
This memo describes a proposed Internet Pilot Project that seeks to prove the MHS-DS approach on a larger scale. This memo provides information for the Internet community. This memo does not specify an Internet standard of any kind.
Network Working Group H. Alvestrand Request for Comments: 1802 UNINETT Category: Informational K. Jordan Control Data Systems S. Langlois Electricite de France J. Romaguera NetConsult June 1995
Introducing Project Long Bud: Internet Pilot Project for the Deployment of X.500 Directory Information in Support of X.400 Routing
Status of this Memo
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.
The Internet X.400 community (i.e., GO-MHS) currently lacks a distributed mechanism providing dynamic updating and management of message routing information. The IETF MHS-DS Working Group has specified an approach for X.400 Message Handling Systems to perform message routing using OSI Directory Services. The MHS-DS approach has been successfully tested in a number of local environments.
This memo describes a proposed Internet Pilot Project that seeks to prove the MHS-DS approach on a larger scale. The results of this pilot will then be used to draw up recommendations for a global deployment.
The 1988 edition of X.400 introduces, among other extensions or revisions, the concept of O/R Names which assumes the existence of a widely available Directory Service. This Directory Service is needed to support several MHS operations (support for names to identify senders and receivers of messages in a user-friendly fashion, support for distribution lists, authentication of MHS components, description of MHS components capabilities...).
The prime advantage of Directory Names, as perceived by many users, was to release users from the remembering of complex O/R Addresses for their correspondents.
Alvestrand, et al Informational [Page 1]
RFC 1802 Introducing Project Long Bud June 1995
In the MHS infrastructure, as compared to other protocols, a name by itself does not contain enough information to allow the Message Transfer Agents (MTAs) to route a message to the User Agent (UA) servicing this name. The routing process is based on information provided by different MHS Management Domains, whether they are public or private.
An MHS community combines several administrative MHS domains among which agreements for cooperative routing exist: the GO-MHS community is the set of MTA’s taking care of X.400 mail operations on the Internet [RFC 1649].
In the absence of a distributed Directory Service, an interim technique has been developed within the GO-MHS community to collect and advertise routing information. This resulted in an experimental IETF protocol [RFC 1465].
A number of routing problems are preventing the present Internet X.400 service from expanding its number of participating message transfer agents to a global scale. The two most critical problems are:
* The present mechanism of centrally maintained and advertized MTA routing tables has been optimized as far as possible. Increasing the number of directly connected MTAs in...