Internet Engineering Task Force (IETF) D. Frost, Ed.
Request for Comments: 6375 S. Bryant, Ed.
Category: Informational Cisco Systems
ISSN: 2070-1721 September 2011
A Packet Loss and Delay Measurement Profile
for MPLS-Based Transport Networks
Abstract
Procedures and protocol mechanisms to enable efficient and accurate
measurement of packet loss, delay, and throughput in MPLS networks
are defined in RFC 6374.
The MPLS Transport Profile (MPLS-TP) is the set of MPLS protocol
functions applicable to the construction and operation of packet-
switched transport networks.
This document describes a profile of the general MPLS loss, delay,
and throughput measurement techniques that suffices to meet the
specific requirements of MPLS-TP.
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 Pseudowire Emulation Edge-to-Edge
(PWE3) architectures to support the capabilities and functionalities
of a packet transport network as defined by the ITU-T.
Status of This Memo
This document is not an Internet Standards Track specification; it is
published for informational purposes.
This document is a product of the Internet Engineering Task Force
(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). Not all documents
approved by the IESG are a candidate for any level of Internet
Standard; see Section 2 of RFC 5741.
Information about the current status of this document, any errata,
and how to provide feedback on it may be obtained at
http://www.rfc-editor.org/info/rfc6375.
Frost & Bryant Informational [Page 1]RFC 6375 MPLS-TP Loss and Delay Measurement September 2011Copyright Notice
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1. Introduction
Procedures for the measurement of packet loss, delay, and throughput
in MPLS networks are defined in [RFC6374]. This document describes a
profile, i.e., a simplified subset, of these procedures that suffices
to meet the specific requirements of MPLS-based transport networks
[RFC5921] as defined in [RFC5860]. This profile is presented for the
convenience of implementors who are concerned exclusively with the
transport network context.
The use of the profile specified in this document is purely optional.
Implementors wishing to provide enhanced functionality that is within
the scope of [RFC6374] but outside the scope of this profile may do
so, whether or not the implementation is restricted to the transport
network context.
The assumption of this profile is that the devices involved in a
measurement operation are configured for measurement by a means
external to the measurement protocols themselves, for example, via a
Network Management System (NMS) or separate configuration protocol.
The manageability considerations in [RFC6374] apply, and further
information on MPLS-TP network management can be found in [RFC5950].
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 Pseudowire Emulation Edge-to-Edge
(PWE3) architectures to support the capabilities and functionalities
of a packet transport network as defined by the ITU-T.
Frost & Bryant Informational [Page 2]RFC 6375 MPLS-TP Loss and Delay Measurement September 20112. MPLS-TP Measurement Considerations
The measurement considerations discussed in Section 2.9 of [RFC6374]
apply also in the context of MPLS-TP, except for the following, which
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