Packet Loss and Delay Measurement for MPLS Networks
RFC 6374
| Document | Type |
RFC - Proposed Standard
(September 2011; Errata)
Updated by RFC 7214
|
|
|---|---|---|---|
| Last updated | 2015-10-14 | ||
| Replaces | draft-frost-mpls-loss-delay | ||
| Stream | IETF | ||
| Formats | plain text pdf html bibtex | ||
| Stream | WG state | WG Document | |
| Document shepherd | No shepherd assigned | ||
| IESG | IESG state | RFC 6374 (Proposed Standard) | |
| Consensus Boilerplate | Unknown | ||
| Telechat date | |||
| Responsible AD | Adrian Farrel | ||
| IESG note | Loa Andersson (loa@pi.nu) is the Document Shepherd. | ||
| Send notices to | (None) | ||
Internet Engineering Task Force (IETF) D. Frost
Request for Comments: 6374 S. Bryant
Category: Standards Track Cisco Systems
ISSN: 2070-1721 September 2011
Packet Loss and Delay Measurement for MPLS Networks
Abstract
Many service provider service level agreements (SLAs) depend on the
ability to measure and monitor performance metrics for packet loss
and one-way and two-way delay, as well as related metrics such as
delay variation and channel throughput. This measurement capability
also provides operators with greater visibility into the performance
characteristics of their networks, thereby facilitating planning,
troubleshooting, and network performance evaluation. This document
specifies protocol mechanisms to enable the efficient and accurate
measurement of these performance metrics in MPLS networks.
Status of This Memo
This is an Internet Standards Track document.
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). Further information on
Internet Standards is available in 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/rfc6374.
Copyright Notice
Copyright (c) 2011 IETF Trust and the persons identified as the
document authors. All rights reserved.
This document is subject to BCP 78 and the IETF Trust's Legal
Provisions Relating to IETF Documents
(http://trustee.ietf.org/license-info) in effect on the date of
publication of this document. Please review these documents
carefully, as they describe your rights and restrictions with respect
to this document. Code Components extracted from this document must
include Simplified BSD License text as described in Section 4.e of
the Trust Legal Provisions and are provided without warranty as
described in the Simplified BSD License.
Frost & Bryant Standards Track [Page 1]
RFC 6374 MPLS Loss and Delay Measurement September 2011
Table of Contents
1. Introduction ....................................................3
1.1. Applicability and Scope ....................................5
1.2. Terminology ................................................6
1.3. Requirements Language ......................................6
2. Overview ........................................................6
2.1. Basic Bidirectional Measurement ............................6
2.2. Packet Loss Measurement ....................................7
2.3. Throughput Measurement ....................................10
2.4. Delay Measurement .........................................10
2.5. Delay Variation Measurement ...............................12
2.6. Unidirectional Measurement ................................12
2.7. Dyadic Measurement ........................................13
2.8. Loopback Measurement ......................................13
2.9. Measurement Considerations ................................14
2.9.1. Types of Channels ..................................14
2.9.2. Quality of Service .................................14
2.9.3. Measurement Point Location .........................14
2.9.4. Equal Cost Multipath ...............................15
2.9.5. Intermediate Nodes .................................15
2.9.6. Different Transmit and Receive Interfaces ..........16
2.9.7. External Post-Processing ...........................16
2.9.8. Loss Measurement Modes .............................16
2.9.9. Loss Measurement Scope .............................18
2.9.10. Delay Measurement Accuracy ........................18
2.9.11. Delay Measurement Timestamp Format ................18
3. Message Formats ................................................19
3.1. Loss Measurement Message Format ...........................19
3.2. Delay Measurement Message Format ..........................25
3.3. Combined Loss/Delay Measurement Message Format ............27
3.4. Timestamp Field Formats ...................................28
3.5. TLV Objects ...............................................29
3.5.1. Padding ............................................30
3.5.2. Addressing .........................................31
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