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 : Removing a Restriction on the use of MPLS Explicit NULL
Author(s) : E. Rosen
Filename : draft-ietf-mpls-explicit-null-01.txt
Pages : 7
Date : 2004-4-23
The label stack encoding for MPLS (Multi-protocol Label Switching)
defines a reserved label value known as "IPv4 Explicit NULL" and a
reserved label value known as "IPv6 Explicit NULL". Previously,
these labels were only legal when they occurred at the bottom of the
MPLS label stack. This restriction is now removed, so that these
label values may legally occur anywhere in the stack.
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