MPLS Inband Network Telemetry
draft-kumar-mpls-mint-00

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Last updated 2019-03-11
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INTERNET-DRAFT                                                  J. Kumar
Intended Status: Standards Track                                J. Lemon
                                                                Y. Peleg
                                                           Broadcom Inc.
                                                             K. Kompella
                                                        Juniper Networks
Expires: September 12, 2019                               March 11, 2019

                     MPLS Inband Network Telemetry
                        draft-kumar-mpls-mint-00

Abstract

   MPLS Inband Network Telemetry (MINT) records flow specific
   information from end stations and/or switches across a network.  This
   document describes the method to collect data on a per hop basis
   across a network and perform localized or end to end analytics
   operations on the data.  This document also describes the use of the
   Extension Label, value 15, for specifying extended special purpose
   labels for specifying presence of MINT data.

Status of this Memo

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Copyright and License Notice

 

Kumar, et al.                                                   [Page 1]
INTERNET DRAFT                    IFA                     March 11, 2019

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Table of Contents

   1.  Introduction . . . . . . . . . . . . . . . . . . . . . . . . .  4
     1.1  Terminology . . . . . . . . . . . . . . . . . . . . . . . .  4
     1.2 Scope  . . . . . . . . . . . . . . . . . . . . . . . . . . .  5
     1.3 Applicability  . . . . . . . . . . . . . . . . . . . . . . .  5
     1.4 Motivation . . . . . . . . . . . . . . . . . . . . . . . . .  6
   2. Requirements  . . . . . . . . . . . . . . . . . . . . . . . . .  6
     2.1 Encapsulation Requirements . . . . . . . . . . . . . . . . .  6
     2.2 Operational Requirements . . . . . . . . . . . . . . . . . .  6
   3. MINT Domains  . . . . . . . . . . . . . . . . . . . . . . . . .  6
     3.1 MINT Domain  . . . . . . . . . . . . . . . . . . . . . . . .  8
     3.2 MINT Function Nodes  . . . . . . . . . . . . . . . . . . . .  8
       3.2.1 Initiating Function Node . . . . . . . . . . . . . . . .  8
       3.2.2 Transit Function Node  . . . . . . . . . . . . . . . . .  9
       3.2.3 Terminating Function Node  . . . . . . . . . . . . . . .  9
       3.2.4 Metadata Fragmentation Function  . . . . . . . . . . . .  9
     3.3 MINT Cloning, Truncation, and Drop . . . . . . . . . . . . . 10
     3.4 MINT Label Stack . . . . . . . . . . . . . . . . . . . . . . 10
       3.4.1 MINT Metadata Header . . . . . . . . . . . . . . . . . . 12
       3.4.2 MINT Checksum Header . . . . . . . . . . . . . . . . . . 13
       3.4.3 MINT Metadata Fragmentation (MF) Header  . . . . . . . . 14
     3.5 MINT Metadata  . . . . . . . . . . . . . . . . . . . . . . . 15
       3.5.1 Global Name Space (GNS) Identifier . . . . . . . . . . . 15
       3.5.2 Local Name Space (LNS) Identifier  . . . . . . . . . . . 16
       3.5.3 Device ID  . . . . . . . . . . . . . . . . . . . . . . . 16
     3.6 MINT Network Overhead  . . . . . . . . . . . . . . . . . . . 16
     3.7 MINT Analytics . . . . . . . . . . . . . . . . . . . . . . . 16
     3.8 MINT Packet Format . . . . . . . . . . . . . . . . . . . . . 17
       3.8.1 MINT Packet Format with TS Flag Set  . . . . . . . . . . 17
     3.9 MINT Load Balancing  . . . . . . . . . . . . . . . . . . . . 18
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