The IPv6 Segment Endpoint Option
draft-bonica-6man-seg-end-opt-02

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6man                                                           R. Bonica
Internet-Draft                                          Juniper Networks
Intended status: Standards Track                              J. Halpern
Expires: September 10, 2019                                     Ericsson
                                                                   X. Xu
                                                             Alibaba Inc
                                                                 G. Chen
                                                                   Baidu
                                                                  Y. Zhu
                                                                 G. Yang
                                                           China Telecom
                                                           March 9, 2019

                    The IPv6 Segment Endpoint Option
                    draft-bonica-6man-seg-end-opt-02

Abstract

   This document defines the IPv6 Segment Endpoint Option.  Source nodes
   can use this option to convey internet-layer information to selected
   segment endpoints along a packet's delivery path.

Status of This Memo

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

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   This Internet-Draft will expire on September 10, 2019.

Copyright Notice

   Copyright (c) 2019 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
   (https://trustee.ietf.org/license-info) in effect on the date of

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   publication of this document.  Please review these documents
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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   3
   3.  Requirements Language . . . . . . . . . . . . . . . . . . . .   3
   4.  Option Format . . . . . . . . . . . . . . . . . . . . . . . .   3
   5.  Option Processing . . . . . . . . . . . . . . . . . . . . . .   5
   6.  Mutability  . . . . . . . . . . . . . . . . . . . . . . . . .   6
   7.  Security Considerations . . . . . . . . . . . . . . . . . . .   6
   8.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .   6
   9.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .   6
   10. References  . . . . . . . . . . . . . . . . . . . . . . . . .   6
     10.1.  Normative References . . . . . . . . . . . . . . . . . .   6
     10.2.  Informative References . . . . . . . . . . . . . . . . .   7
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .   7

1.  Introduction

   IPv6 [RFC8200] options convey optional internet-layer information to
   selected nodes along a packets delivery path.  IPv6 options can be
   encoded as follows:

   o  In a Hop-by-hop Options header.

   o  In a Destination Options header that precedes a Routing header.

   o  In a Destination Options header that precedes an upper-layer
      header.

   If an option is encoded in a Hop-by-hop Options header, it conveys
   information to every node along the packet's delivery path, including
   the destination node.  (See NOTE 1).  If an option is encoded in a
   Destination Options header that precedes a Routing header, it conveys
   information to every segment endpoint along the packet's delivery
   path, including the destination node.  If an option is encoded in a
   Destination Options header that precedes an upper-layer header, it
   conveys information to the destination node only.  (See Section 4.3.4
   of [RFC8200] )

   This document defines the IPv6 Segment Endpoint option.  The IPv6
   Segment Endpoint option provides a mechanism through which a source

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   node can convey optional internet-layer information to selected
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