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This draft is a work item of the Multiprotocol Label Switching Working Group of the IETF.

	Title		: Time to Live (TTL) Processing in MPLS Networks 
                          (Updates RFC 3032)
	Author(s)	: P. Agarwal, B. Akyol
	Filename	: draft-ietf-mpls-ttl-03.txt
	Pages		: 8
	Date		: 20-Jun-02
	
This document describes TTL processing in hierarchical MPLS 
networks. It updates rfc-3032 'MPLS Label Stack Encoding'. TTL 
processing in both pipe and uniform model hierarchical tunnels are 
specified with examples for both 'push' and 'pop' cases. The 
document also complements rfc-3270 'MPLS Support of Differentiated 
Services' and ties together the terminology introduced in that 
document with TTL processing in hierarchical MPLS networks.

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