In-band Telemetry for a Proactive SLA Monitoring Framework
draft-krishnan-opsawg-in-band-pro-sla-03

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OPSAWG Working Group                                Ram(Ramki) Krishnan
Internet Draft                                          Support Vectors
Category: Experimental

Expires: April 2017                                   December 30, 2016

        In-band Telemetry for a Proactive SLA Monitoring Framework

                 draft-krishnan-opsawg-in-band-pro-sla-03

Abstract

   The goal of in-band telemetry is to drive per packet, per hop real-
   time monitoring for the infrastructure towards achieving a
   programmable proactive SLA monitoring framework. Some of the key
   aspects from a switch/NIC perspective are - ingress/egress timestamp
   (latency), queue depth, bandwidth etc. Some of the key aspects from
   a server perspective are - cache/memory statistics etc. This
   document summarizes the current work in the industry in this area
   and identifies key requirements for a comprehensive solution.
   Towards addressing the requirements, this document describes uses
   cases and defines reusable monitoring packet formats across all
   layers in the OAM hierarchy.

Status of this Memo

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   This Internet-Draft will expire on April, 2014.

Copyright Notice

   Copyright (c) 2014 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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   respect to this document.

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 [RFC 2119].

Table of Contents

   1. Introduction...................................................4
      1.1. Acronyms..................................................5
   2. In-band Telemetry for IPSEC tunnel packets.....................5
      2.1. Packet Format 1 - Geneve..................................6
      2.2. Packet Format 2 - VXLAN GPE...............................7
      2.3. Packet Format 3 - IP options..............................8
   3. In-band Telemetry for Service Chaining.........................8
      3.1. NSH for service chaining Packet Format...................10
      3.2. VXLAN-GPE for overlay and NSH for service chaining Packet
      Format........................................................10
      3.3. VXLAN-GPE for overlay and NSH for service chaining Packet
      Format........................................................11
   4. Pre-construction/Minimizing of In-band Telemetry Header.......12
      4.1. Pre-construction of In-band Telemetry Header.............12
      4.2. Minimizing of In-band Telemetry Header for latency
      measurement...................................................12
   5. Summarizing information in Telemetry header...................13
   6. IANA Considerations...........................................14
   7. Security Considerations.......................................14
   8. Acknowledgements..............................................14
   9. References....................................................15

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      9.1. Normative References.....................................15
      9.2. Informative References...................................15

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