The IESG has approved the Internet-Draft 'Time to Live (TTL) Processing in MPLS Networks (Updates RFC 3032)' <draft-ietf-mpls-ttl-04.txt> as a Proposed Standard. This document is the product of the Multiprotocol Label Switching Working Group. The IESG contact persons are Bert Wijnen and Scott Bradner. Technical Summary This document describes Time To Live (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. Working Group Summary The working group supported publication of this document. Protocol Quality This document was reviewed for the IESG by Scott Bradner.
