SRv6 SPAN
draft-li-spring-srv6-span-01

Document Type Active Internet-Draft (individual)
Authors Zhiqiang Li  , Tao Sun  , Cheng Wei  , Junjie Wang 
Last updated 2020-11-02
Stream (None)
Intended RFC status (None)
Formats plain text xml pdf htmlized (tools) htmlized bibtex
Stream Stream state (No stream defined)
Consensus Boilerplate Unknown
RFC Editor Note (None)
IESG IESG state I-D Exists
Telechat date
Responsible AD (None)
Send notices to (None)
Network Working Group                                              Z. Li
Internet-Draft                                                    T. Sun
Intended status: Informational                              China Mobile
Expires: May 6, 2021                                            W. Cheng
                                                                 J. Wang
                                                         Centec Networks
                                                        November 2, 2020

                               SRv6 SPAN
                      draft-li-spring-srv6-span-01

Abstract

   As an important means for operation and maintenance (O&M), mirroring
   is the most direct and comprehensive technology for capturing data
   streams and forwarding information.  Compared with other
   visualization technologies, it can not only obtain the content of an
   entire packet, but also add forwarding information of a network
   device to a mirror packet and send the packet to a remote analysis
   server.

Requirements Language

   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 .

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
   Task Force (IETF).  Note that other groups may also distribute
   working documents as Internet-Drafts.  The list of current Internet-
   Drafts is at https://datatracker.ietf.org/drafts/current/.

   Internet-Drafts are draft documents valid for a maximum of six months
   and may be updated, replaced, or obsoleted by other documents at any
   time.  It is inappropriate to use Internet-Drafts as reference
   material or to cite them other than as "work in progress."

   This Internet-Draft will expire on May 6, 2021.

Li, et al.                 Expires May 6, 2021                  [Page 1]
Internet-Draft                SPRING Group                 November 2020

Copyright Notice

   Copyright (c) 2020 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
   publication of this document.  Please review these documents
   carefully, as they describe your rights and restrictions with respect
   to this document.  Code Components extracted from this document must
   include Simplified BSD License text as described in Section 4.e of
   the Trust Legal Provisions and are provided without warranty as
   described in the Simplified BSD License.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Purposes for Proposing the SRv6 SPAN Technology . . . . . . .   3
     2.1.  Design and Implementation of the SRv6 SPAN Technology . .   4
       2.1.1.  SRv6 SPAN Technology and Networking . . . . . . . . .   4
       2.1.2.  SRv6 SPAN Technology and Packet Formats . . . . . . .   5
     2.2.  Future Considerations and Enhancements of the SRv6 SPAN
           Technology  . . . . . . . . . . . . . . . . . . . . . . .   8
   3.  Conclusion  . . . . . . . . . . . . . . . . . . . . . . . . .   9
   4.  Security Considerations . . . . . . . . . . . . . . . . . . .   9
   5.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .   9
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .   9

1.  Introduction

   The mirroring technology is also required in network O&M and fault
   locating.  Networking architectures and network scales vary with
   scenarios, and accordingly requirements for mirroring technologies
   are different.  For example, port mirroring can meet mirroring
   requirements for some small and medium-sized networks.  In terms of
   network architecture, on the physical link, a mirroring-enabled
   switch is directly connected to a server used to analyze mirror
   packets.  Although it is simple to use the mirroring technology in
   this case, the deployment of the mirror server is greatly limited.

   With the expansion of the network scale, especially in a super-large
   data center, the overlay tunneling technology is also used for
   deploying the mirror server, so as to remove the limitation that the
   mirror server needs to be directly connected on the physical link
   during networking.

Li, et al.                 Expires May 6, 2021                  [Page 2]
Internet-Draft                SPRING Group                 November 2020

   The conventional mirroring technology is designed and implemented
   based on the IPv4 network, and data stream-based remote mirroring is
   developed based on local port mirroring.  Combined with the
   networking in the data center, overlay and underlay networks are
Show full document text