draft-ietf-mpls-tp-ethernet-addressing-03.txt   draft-ietf-mpls-tp-ethernet-addressing-04.txt 
MPLS D. Frost, Ed. MPLS D. Frost, Ed.
Internet-Draft S. Bryant, Ed. Internet-Draft S. Bryant, Ed.
Intended status: Standards Track Cisco Systems Intended status: Standards Track Cisco Systems
Expires: June 9, 2013 M. Bocci, Ed. Expires: June 9, 2013 M. Bocci, Ed.
Alcatel-Lucent Alcatel-Lucent
December 6, 2012 December 6, 2012
MPLS-TP Next-Hop Ethernet Addressing MPLS-TP Next-Hop Ethernet Addressing
draft-ietf-mpls-tp-ethernet-addressing-03 draft-ietf-mpls-tp-ethernet-addressing-04
Abstract Abstract
The Multiprotocol Label Switching (MPLS) Transport Profile (MPLS-TP) The Multiprotocol Label Switching (MPLS) Transport Profile (MPLS-TP)
is the set of MPLS protocol functions applicable to the construction is the set of MPLS protocol functions applicable to the construction
and operation of packet-switched transport networks. This document and operation of packet-switched transport networks. This document
presents considerations for link-layer addressing of Ethernet frames presents considerations for link-layer addressing of Ethernet frames
carrying MPLS-TP packets. carrying MPLS-TP packets.
Status of this Memo Status of this Memo
skipping to change at page 2, line 27 skipping to change at page 2, line 27
Ethernet frames carrying MPLS-TP packets. Since MPLS-TP packets are Ethernet frames carrying MPLS-TP packets. Since MPLS-TP packets are
MPLS packets, existing procedures ([RFC3032], [RFC5332]) for the MPLS packets, existing procedures ([RFC3032], [RFC5332]) for the
encapsulation of MPLS packets over Ethernet apply. Because IP encapsulation of MPLS packets over Ethernet apply. Because IP
functionality is optional in an MPLS-TP network, however, IP-based functionality is optional in an MPLS-TP network, however, IP-based
protocols for Media Access Control (MAC) address learning, such as protocols for Media Access Control (MAC) address learning, such as
the Address Resolution Protocol (ARP) [RFC0826] and IP version 6 the Address Resolution Protocol (ARP) [RFC0826] and IP version 6
Neighbor Discovery [RFC4861], may not be available. This document Neighbor Discovery [RFC4861], may not be available. This document
specifies the options for determination and selection of next-hop specifies the options for determination and selection of next-hop
Ethernet MAC addressing under these circumstances. Ethernet MAC addressing under these circumstances.
This document is a product of a joint Internet Engineering Task Force
(IETF) / International Telecommunication Union Telecommunication
Standardization Sector (ITU-T) effort to include an MPLS Transport
Profile within the IETF MPLS and PWE3 architectures to support the
capabilities and functionalities of a packet transport network.
1.1. Terminology 1.1. Terminology
Term Definition Term Definition
------- ------------------------------------------- ------- -------------------------------------------
ARP Address Resolution Protocol ARP Address Resolution Protocol
G-ACh Generic Associated Channel G-ACh Generic Associated Channel
GAL G-ACh Label GAL G-ACh Label
LSP Label Switched Path LSP Label Switched Path
LSR Label Switching Router LSR Label Switching Router
MAC Media Access Control MAC Media Access Control
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