draft-ietf-mpls-rfc6374-sfl-03.txt   draft-ietf-mpls-rfc6374-sfl-04.txt 
MPLS Working Group S. Bryant MPLS Working Group S. Bryant
Internet-Draft M. Chen Internet-Draft Futurewei Technologies Inc.
Intended status: Standards Track Z. Li Intended status: Standards Track M. Chen
Expires: June 15, 2019 Huawei Expires: January 30, 2020 Z. Li
Huawei
G. Swallow G. Swallow
Southend Technical Center Southend Technical Center
S. Sivabalan S. Sivabalan
Cisco Systems Cisco Systems
G. Mirsky G. Mirsky
ZTE Corp. ZTE Corp.
G. Fioccola G. Fioccola
Huawei Technologies Huawei Technologies
December 12, 2018 July 29, 2019
RFC6374 Synonymous Flow Labels RFC6374 Synonymous Flow Labels
draft-ietf-mpls-rfc6374-sfl-03 draft-ietf-mpls-rfc6374-sfl-04
Abstract Abstract
This document describes a method of making RFC6374 performance This document describes a method of making RFC6374 performance
measurements on flows carried over an MPLS Label Switched path. This measurements on flows carried over an MPLS Label Switched path. This
allows loss and delay measurements to be made on multi-point to point allows loss and delay measurements to be made on multi-point to point
LSPs and allows the measurement of flows within an MPLS construct LSPs and allows the measurement of flows within an MPLS construct
using RFC6374. using RFC6374.
Status of This Memo Status of This Memo
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Internet-Drafts are working documents of the Internet Engineering Internet-Drafts are working documents of the Internet Engineering
Task Force (IETF). Note that other groups may also distribute Task Force (IETF). Note that other groups may also distribute
working documents as Internet-Drafts. The list of current Internet- working documents as Internet-Drafts. The list of current Internet-
Drafts is at http://datatracker.ietf.org/drafts/current/. Drafts is at http://datatracker.ietf.org/drafts/current/.
Internet-Drafts are draft documents valid for a maximum of six months Internet-Drafts are draft documents valid for a maximum of six months
and may be updated, replaced, or obsoleted by other documents at any and may be updated, replaced, or obsoleted by other documents at any
time. It is inappropriate to use Internet-Drafts as reference time. It is inappropriate to use Internet-Drafts as reference
material or to cite them other than as "work in progress." material or to cite them other than as "work in progress."
This Internet-Draft will expire on June 15, 2019. This Internet-Draft will expire on January 30, 2020.
Copyright Notice Copyright Notice
Copyright (c) 2018 IETF Trust and the persons identified as the Copyright (c) 2019 IETF Trust and the persons identified as the
document authors. All rights reserved. document authors. All rights reserved.
This document is subject to BCP 78 and the IETF Trust's Legal This document is subject to BCP 78 and the IETF Trust's Legal
Provisions Relating to IETF Documents Provisions Relating to IETF Documents
(http://trustee.ietf.org/license-info) in effect on the date of (http://trustee.ietf.org/license-info) in effect on the date of
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carefully, as they describe your rights and restrictions with respect carefully, as they describe your rights and restrictions with respect
to this document. Code Components extracted from this document must to this document. Code Components extracted from this document must
include Simplified BSD License text as described in Section 4.e of include Simplified BSD License text as described in Section 4.e of
the Trust Legal Provisions and are provided without warranty as the Trust Legal Provisions and are provided without warranty as
described in the Simplified BSD License. described in the Simplified BSD License.
Table of Contents Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 3
2. Requirements Language . . . . . . . . . . . . . . . . . . . . 4 2. Requirements Language . . . . . . . . . . . . . . . . . . . . 4
3. RFC6374 Packet Loss Measurement with SFL . . . . . . . . . . 4 3. RFC6374 Packet Loss Measurement with SFL . . . . . . . . . . 4
4. RFC6374 Single Packet Delay Measurement . . . . . . . . . . . 4 4. RFC6374 Single Packet Delay Measurement . . . . . . . . . . . 4
5. Data Service Packet Delay Measurement . . . . . . . . . . . . 4 5. Data Service Packet Delay Measurement . . . . . . . . . . . . 5
6. Some Simplifying Rules . . . . . . . . . . . . . . . . . . . 6 6. Some Simplifying Rules . . . . . . . . . . . . . . . . . . . 6
7. Multiple Packet Delay Characteristics . . . . . . . . . . . . 6 7. Multiple Packet Delay Characteristics . . . . . . . . . . . . 7
7.1. Method 1: Time Buckets . . . . . . . . . . . . . . . . . 7 7.1. Method 1: Time Buckets . . . . . . . . . . . . . . . . . 7
7.2. Method 2 Classic Standard Deviation . . . . . . . . . . . 9 7.2. Method 2 Classic Standard Deviation . . . . . . . . . . . 9
7.2.1. RFC6374 Multi-Packet Delay Measurement Message Format 10 7.2.1. RFC6374 Multi-Packet Delay Measurement Message Format 10
7.3. Per Packet Delay Measurement . . . . . . . . . . . . . . 11 7.3. Per Packet Delay Measurement . . . . . . . . . . . . . . 11
7.4. Average Delay . . . . . . . . . . . . . . . . . . . . . . 11 7.4. Average Delay . . . . . . . . . . . . . . . . . . . . . . 11
8. Sampled Measurement . . . . . . . . . . . . . . . . . . . . . 13 8. Sampled Measurement . . . . . . . . . . . . . . . . . . . . . 13
9. Carrying RFC6374 Packets over an LSP using an SFL . . . . . . 13 9. Carrying RFC6374 Packets over an LSP using an SFL . . . . . . 13
9.1. RFC6374 SFL TLV . . . . . . . . . . . . . . . . . . . . . 15 9.1. RFC6374 SFL TLV . . . . . . . . . . . . . . . . . . . . . 15
10. Applicability to Pro-active and On-demand Measurement . . . . 16 10. Applicability to Pro-active and On-demand Measurement . . . . 16
11. RFC6374 Combined Loss-Delay Measurement . . . . . . . . . . . 16 11. RFC6374 Combined Loss-Delay Measurement . . . . . . . . . . . 16
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[RFC8174] Leiba, B., "Ambiguity of Uppercase vs Lowercase in RFC [RFC8174] Leiba, B., "Ambiguity of Uppercase vs Lowercase in RFC
2119 Key Words", BCP 14, RFC 8174, DOI 10.17487/RFC8174, 2119 Key Words", BCP 14, RFC 8174, DOI 10.17487/RFC8174,
May 2017, <https://www.rfc-editor.org/info/rfc8174>. May 2017, <https://www.rfc-editor.org/info/rfc8174>.
15.2. Informative References 15.2. Informative References
[I-D.bryant-mpls-sfl-control] [I-D.bryant-mpls-sfl-control]
Bryant, S., Swallow, G., and S. Sivabalan, "MPLS Flow Bryant, S., Swallow, G., and S. Sivabalan, "MPLS Flow
Identification Considerations", draft-bryant-mpls-sfl- Identification Considerations", draft-bryant-mpls-sfl-
control-02 (work in progress), October 2017. control-03 (work in progress), January 2019.
[I-D.ietf-mpls-sfl-framework] [I-D.ietf-mpls-sfl-framework]
Bryant, S., Chen, M., Li, Z., Swallow, G., Sivabalan, S., Bryant, S., Chen, M., Li, Z., Swallow, G., Sivabalan, S.,
and G. Mirsky, "Synonymous Flow Label Framework", draft- and G. Mirsky, "Synonymous Flow Label Framework", draft-
ietf-mpls-sfl-framework-03 (work in progress), June 2018. ietf-mpls-sfl-framework-04 (work in progress), December
2018.
[RFC3270] Le Faucheur, F., Wu, L., Davie, B., Davari, S., Vaananen, [RFC3270] Le Faucheur, F., Wu, L., Davie, B., Davari, S., Vaananen,
P., Krishnan, R., Cheval, P., and J. Heinanen, "Multi- P., Krishnan, R., Cheval, P., and J. Heinanen, "Multi-
Protocol Label Switching (MPLS) Support of Differentiated Protocol Label Switching (MPLS) Support of Differentiated
Services", RFC 3270, DOI 10.17487/RFC3270, May 2002, Services", RFC 3270, DOI 10.17487/RFC3270, May 2002,
<https://www.rfc-editor.org/info/rfc3270>. <https://www.rfc-editor.org/info/rfc3270>.
[RFC5921] Bocci, M., Ed., Bryant, S., Ed., Frost, D., Ed., Levrau, [RFC5921] Bocci, M., Ed., Bryant, S., Ed., Frost, D., Ed., Levrau,
L., and L. Berger, "A Framework for MPLS in Transport L., and L. Berger, "A Framework for MPLS in Transport
Networks", RFC 5921, DOI 10.17487/RFC5921, July 2010, Networks", RFC 5921, DOI 10.17487/RFC5921, July 2010,
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January 2018, <https://www.rfc-editor.org/info/rfc8321>. January 2018, <https://www.rfc-editor.org/info/rfc8321>.
[RFC8372] Bryant, S., Pignataro, C., Chen, M., Li, Z., and G. [RFC8372] Bryant, S., Pignataro, C., Chen, M., Li, Z., and G.
Mirsky, "MPLS Flow Identification Considerations", Mirsky, "MPLS Flow Identification Considerations",
RFC 8372, DOI 10.17487/RFC8372, May 2018, RFC 8372, DOI 10.17487/RFC8372, May 2018,
<https://www.rfc-editor.org/info/rfc8372>. <https://www.rfc-editor.org/info/rfc8372>.
Authors' Addresses Authors' Addresses
Stewart Bryant Stewart Bryant
Huawei Futurewei Technologies Inc.
Email: stewart.bryant@gmail.com Email: stewart.bryant@gmail.com
Mach Chen Mach Chen
Huawei Huawei
Email: mach.chen@huawei.com Email: mach.chen@huawei.com
Zhenbin Li Zhenbin Li
Huawei Huawei
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