Encapsulating MPLS in IP or Generic Routing Encapsulation (GRE)
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From: The IESG <email@example.com> To: IETF-Announce <firstname.lastname@example.org> Cc: Internet Architecture Board <email@example.com>, RFC Editor <firstname.lastname@example.org>, mpls mailing list <email@example.com>, mpls chair <firstname.lastname@example.org> Subject: Protocol Action: 'Encapsulating MPLS in IP or Generic Routing Encapsulation (GRE)' to Proposed Standard The IESG has approved the following document: - 'Encapsulating MPLS in IP or Generic Routing Encapsulation (GRE) ' <draft-ietf-mpls-in-ip-or-gre-09.txt> as a Proposed Standard This document is the product of the Multiprotocol Label Switching Working Group. The IESG contact persons are Alex Zinin and Ross Callon. A URL of this Internet-Draft is: http://www.ietf.org/internet-drafts/draft-ietf-mpls-in-ip-or-gre-09.txt
Technical Summary In various applications of MPLS, label stacks with multiple entries are used. In some cases, it is possible to replace the top label of the stack with an IP-based encapsulation, thereby enabling the application to run over networks which do not have MPLS enabled in their core routers. This draft specifies two IP-based encapsulations, MPLS-in-IP, and MPLS-in-GRE (Generic Routing Encapsulation). Each of these is applicable in some circumstances. Working Group Summary The draft has gone through a discussion within the WG and the WG LC. There was a WG consensus on this document. Protocol Quality The document has been review for the IESG by Alex Zinin and Routing Area Directorate.