Internet Engineering Task Force (IETF) D. Papadimitriou
Request for Comments: 6003 Alcatel-Lucent
Updates: 3471, 3473 October 2010
Category: Standards Track
Ethernet Traffic Parameters
This document describes the support of Metro Ethernet Forum (MEF)
Ethernet traffic parameters as described in MEF10.1 when using
Generalized Multi-Protocol Label Switching (GMPLS) Resource
ReSerVation Protocol - Traffic Engineering (RSVP-TE) signaling.
Status of This Memo
This is an Internet Standards Track document.
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(IETF). It represents the consensus of the IETF community. It has
received public review and has been approved for publication by the
Internet Engineering Steering Group (IESG). Further information on
Internet Standards is available in Section 2 of RFC 5741.
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Papadimitriou Standards Track [Page 1]RFC 6003 Ethernet Traffic Parameters October 20101. Introduction
Per [RFC3471], Generalized Multi-Protocol Label Switching (GMPLS)
allows the inclusion of technology-specific parameters in signaling.
This document introduces Ethernet SENDER_TSPEC and FLOWSPEC-specific
objects in support of Metro Ethernet Forum (MEF) Ethernet traffic
parameters as specified in [MEF10.1] and ITU-T Ethernet Service
Switching as discussed in [RFC6004]. For example:
o For Ethernet Private Line (EPL) services [MEF6], these traffic
parameters are applicable to each Ethernet Virtual Connection
(EVC) crossing a given port.
o For Ethernet Virtual Private Line (EVPL) services [MEF6], these
traffic parameters are applicable per Ethernet Virtual Connection
(EVC) with a single or multiple Class of Service (CoS),
independent of its associated Virtual LAN ID (VID) or set of VIDs.
Association between EVC and VIDs is detailed in [MEF10.1]. The
format and encoding of the VID (or set of VIDs) is documented in a
companion document [RFC6004].
This does not preclude broader usage of the Ethernet SENDER_TSPEC and
FLOWSPEC-specific objects specified this document. For instance,
they may also be used for signaling Ethernet Label Switched Paths
(LSPs), in the Generalized Label Request (see [RFC3471]), the
Switching Type field is set to Layer 2 Switching Capability (L2SC)
and the LSP Encoding Type field to Ethernet.
2. Conventions Used in This Document
The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
"SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
document are to be interpreted as described in RFC 2119 [RFC2119].
Moreover, the reader is assumed to be familiar with the terminology
in [MEF10.1] as well as in [RFC3471] and [RFC3473].
In GMPLS RSVP-TE [RFC3473], the SENDER_TSPEC object is used on a Path
message to indicate the bandwidth that is requested for the LSP being
established, and the FLOWSPEC object is used on a Resv message to
indicate the bandwidth actually reserved for the LSP. The Ethernet
SENDER_TSPEC/FLOWSPEC object includes the Ethernet link type
(switching granularity) of the requested LSP and the MTU value for
Papadimitriou Standards Track [Page 2]RFC 6003 Ethernet Traffic Parameters October 2010
the LSP. Other information about the requested bandwidth
characteristics of the LSP are carried in the Bandwidth Profile as a
TLV within the Ethernet SENDER_TSPEC/FLOWSPEC object.
The Ethernet SENDER_TSPEC/FLOWSPEC object includes the Ethernet link