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	Title		: Label Switched Path backtrace using Multi Protocol 
                          Label Switching Label Distribution Protocol/Constraint
                          Based Label Distributed Protocol
	Author(s)	: H. Desineni, K. Avasarala
	Filename	: draft-kishan-lsp-btrace-02.txt
	Pages		: 19
	Date		: 29-May-02
	
This document describes the encoding and procedures for new Label 
Distribution Protocol (LDP) messages, the back trace message and back 
trace reply message. The back trace message is sent for an 
established Label Switched Path(LSP). The back trace message can be 
used for Label Distribution Protocol(LDP) Label Switched paths as 
well as for Constraint Based Label Switched Paths (CR-LSPs). The data 
requested is encoded into the back trace reply message. Backtrace 
mechanism described in this draft can be used for obtaining the MPLS 
topology information for a particular Forwarding Equivalence Class  
(FEC) in a Multi Protocol Label Switching (MPLS) domain.

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