The MPLS WG Archive[Date Prev][Date Next][Thread Prev][Thread Next] [Date Index][Thread Index][Author Index][Subject Index] I-D ACTION:draft-ietf-mpls-ldp-state-04.txt
A New Internet-Draft is available from the on-line Internet-Drafts directories. This draft is a work item of the Multiprotocol Label Switching Working Group of the IETF. Title : LDP State Machine Author(s) : C. Boscher, P. Cheval, L. Wu, E. Gray Filename : draft-ietf-mpls-ldp-state-04.txt Pages : 78 Date : 29-Mar-01 In the current LDP specification [4], there is no state machine specified for processing LDP messages. We think that defining a common state machine is very important for interoperability between different LDP and CR-LDP implementations. This document provides state machine tables for ATM switch LSRs. We begin in section 2 by defining a list of terminologies. Then in section 3, we propose two sets of state machine tables for ATM switch LSRs which use downstream-on-demand mode, one method can be used for non-vc merge capable ATM LSRs, while the other one can be used for the vc-merge capable ATM LSRs. In section 4, we provides a state machine for downstream unsolicited mode ATM LSRs. We focus on the LDP state machines and the associated control blocks used for establishing and maintaining LSPs. We do not describe state machines for the 'LDP controller' which is in charge of LDP session initialization, address mapping messages management, routing interface, etc. which is defined in the LDP specification [4]. Even though the state machines in this document are specific for ATM-LSR, they can be easily adapted for other types of LSRs. A URL for this Internet-Draft is: http://www.ietf.org/internet-drafts/draft-ietf-mpls-ldp-state-04.txt Internet-Drafts are also available by anonymous FTP. Login with the username "anonymous" and a password of your e-mail address. After logging in, type "cd internet-drafts" and then "get draft-ietf-mpls-ldp-state-04.txt". A list of Internet-Drafts directories can be found in http://www.ietf.org/shadow.html or ftp://ftp.ietf.org/ietf/1shadow-sites.txt Internet-Drafts can also be obtained by e-mail. Send a message to: mailserv@ietf.org. In the body type: "FILE /internet-drafts/draft-ietf-mpls-ldp-state-04.txt". NOTE: The mail server at ietf.org can return the document in MIME-encoded form by using the "mpack" utility. To use this feature, insert the command "ENCODING mime" before the "FILE" command. To decode the response(s), you will need "munpack" or a MIME-compliant mail reader. Different MIME-compliant mail readers exhibit different behavior, especially when dealing with "multipart" MIME messages (i.e. documents which have been split up into multiple messages), so check your local documentation on how to manipulate these messages. Below is the data which will enable a MIME compliant mail reader implementation to automatically retrieve the ASCII version of the Internet-Draft. <<< multipart/alternative: No recognizable part >>> |
|