I-D ACTION:draft-ietf-mpls-label-encaps-05.txt

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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		: MPLS Label Stack Encoding
	Author(s)	: E. Rosen, Y. Rekhter,  D. Tappan,  D. Farinacci,  
                          G. Fedorkow,  T. Li,  A. Conta
	Filename	: draft-ietf-mpls-label-encaps-05.txt
	Pages		: 22
	Date		: 27-Aug-99
	
'Multi-Protocol Label Switching (MPLS)' [1,2] requires a set of
procedures for augmenting network layer packets with 'label stacks',
thereby turning them into 'labeled packets'.  Routers which support
MPLS are known as 'Label Switching Routers', or 'LSRs'.  In order to
transmit a labeled packet on a particular data link, an LSR must
support an encoding technique which, given a label stack and a
network layer packet, produces a labeled packet.  This document
specifies the encoding to be used by an LSR in order to transmit
labeled packets on PPP data links, on LAN data links, and possibly on
other data links as well.  On some data links, the label at the top
of the stack may be encoded in a different manner, but the techniques
described here MUST be used to encode the remainder of the label
stack.  This document also specifies rules and procedures for
processing the various fields of the label stack encoding.

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