Encapsulation Methods for Transport of Frame Relay over Multiprotocol Label Switching (MPLS) Networks
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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>, pwe3 mailing list <email@example.com>, pwe3 chair <firstname.lastname@example.org> Subject: Protocol Action: 'Encapsulation Methods for Transport of Frame Relay Over MPLS Networks' to Proposed Standard The IESG has approved the following document: - 'Encapsulation Methods for Transport of Frame Relay Over MPLS Networks ' <draft-ietf-pwe3-frame-relay-08.txt> as a Proposed Standard This document is the product of the Pseudowire Emulation Edge to Edge Working Group. The IESG contact persons are Mark Townsley and Jari Arkko. A URL of this Internet-Draft is: http://www.ietf.org/internet-drafts/draft-ietf-pwe3-frame-relay-08.txt
Technical Summary This draft describes how a Frame Relay Pseudowire (PW) is used to carry Frame Relay packets over an MPLS network. This enables service providers to offer "emulated" Frame Relay services over existing MPLS networks. This document specifies the encapsulation of Frame Relay packets within a pseudo wire. Working Group Summary This work has been thoroughly analysed by the working group and there is consensus for the design. Protocol Quality There are many implementations of this protocol, and it is in operational service. Note to RFC Editor (1) Please replace in section 7.2 "information field with bit/byte stuffing, frame relay header removed, and FCS removed." with: "information field with the following components removed: bit/byte stuffing, frame relay header, and FCS." (2) Please add an informational reference to RFC 3032 at the end of the first sentence below (and an associated bibliographic listing in the references section). 7.7. MPLS Shim EXP Bit Values > > If it is desired to carry Quality of Service information, the Quality > of Service information SHOULD be represented in the EXP field of the > PW MPLS label. If more than one MPLS label is imposed by the ingress > LSR, the EXP field of any labels higher in the stack SHOULD also > carry the same value.