Simple Two-Way Active Measurement Protocol Extensions for Performance Measurement on LAG
draft-li-ippm-stamp-on-lag-00

Document Type Active Internet-Draft (individual)
Authors Zhenqiang Li  , Mach Chen  , Greg Mirsky 
Last updated 2021-02-19
Replaces draft-li-ippm-pm-on-lag
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Network Working Group                                              Z. Li
Internet-Draft                                              China Mobile
Intended status: Standards Track                                 M. Chen
Expires: August 23, 2021                                          Huawei
                                                               G. Mirsky
                                                               ZTE Corp.
                                                       February 19, 2021

 Simple Two-Way Active Measurement Protocol Extensions for Performance
                           Measurement on LAG
                     draft-li-ippm-stamp-on-lag-00

Abstract

   This document defines extensions to Simple Two-Way Active Measurement
   Protocol (STAMP) to implement performance measurement on every member
   link of a Link Aggregation Group (LAG).  Knowing the measured metrics
   of each member link of a LAG enables operators to enforce a
   performance metric-based traffic steering policy across the member
   links.

Requirements Language

   The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
   "SHOULD", "SHOULD NOT", "RECOMMENDED", "NOT RECOMMENDED", "MAY", and
   "OPTIONAL" in this document are to be interpreted as described in
   [RFC2119] [RFC8174] when, and only when, they appear in all capitals,
   as shown here.

Status of This Memo

   This Internet-Draft is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.

   Internet-Drafts are working documents of the Internet Engineering
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   This Internet-Draft will expire on August 23, 2021.

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Copyright Notice

   Copyright (c) 2021 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
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   described in the Simplified BSD License.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Micro-Session on LAG  . . . . . . . . . . . . . . . . . . . .   3
   3.  Micro-STAMP Session . . . . . . . . . . . . . . . . . . . . .   4
     3.1.  Micro-STAMP-Test  . . . . . . . . . . . . . . . . . . . .   4
       3.1.1.  LAG Member Link ID TLV  . . . . . . . . . . . . . . .   4
       3.1.2.  Micro-STAMP-Test Procedures . . . . . . . . . . . . .   5
   4.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .   6
   5.  Security Considerations . . . . . . . . . . . . . . . . . . .   6
   6.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .   6
   7.  References  . . . . . . . . . . . . . . . . . . . . . . . . .   6
     7.1.  Normative References  . . . . . . . . . . . . . . . . . .   6
     7.2.  Informative References  . . . . . . . . . . . . . . . . .   7
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .   7

1.  Introduction

   Link Aggregation Group (LAG), as defined in [IEEE802.1AX], provides
   mechanisms to combine multiple physical links into a single logical
   link.  This logical link offers higher bandwidth and better
   resiliency, because if one of the physical member links fails, the
   aggregate logical link can continue to forward traffic over the
   remaining operational physical member links.

   Usually, when forwarding traffic over a LAG, a hash-based or similar
   mechanism is used to load-balance the traffic across the LAG member
   links.  In some cases, the link delays of the member links are
   different because they are over different transport paths.  To
   provide low delay service to time-sensitive traffic, we have to know
   the link delay of each member link of a LAG and then steer traffic
   accordingly.  That requires a solution that could measure the
   performance metrics of each member link of a LAG.

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