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Advertising Seamless Bidirectional Forwarding Detection (S-BFD) Discriminators in the Layer Two Tunneling Protocol Version 3 (L2TPv3) (RFC7886)

IP.com Disclosure Number: IPCOM000246903D
Original Publication Date: 2016-Jul-01
Included in the Prior Art Database: 2016-Jul-13
Document File: 12 page(s) / 11K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

V. Govindan: AUTHOR [+2]

Abstract

[RFC7880] defines a simplified mechanism to use Bidirectional Forwarding Detection (BFD) [RFC5880], referred to as Seamless Bidirectional Forwarding Detection (S-BFD). The S-BFD mechanism depends on network nodes knowing the BFD Discriminators that each node in the network has reserved for this purpose. S-BFD requires the usage of unique discriminators within an administrative domain. The use of the Layer Two Tunneling Protocol version 3 (L2TPv3) [RFC3931] is one possible means of advertising these discriminators.

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Internet Engineering Task Force (IETF)                       V. Govindan Request for Comments: 7886                                  C. Pignataro Category: Standards Track                                          Cisco ISSN: 2070-1721                                                July 2016

     Advertising Seamless Bidirectional Forwarding Detection (S-BFD)  Discriminators in the Layer Two Tunneling Protocol Version 3 (L2TPv3)

Abstract

   This document defines a new Attribute-Value Pair (AVP) that allows    L2TP Control Connection Endpoints (LCCEs) to advertise one or more    Seamless Bidirectional Forwarding Detection (S-BFD) Discriminator    values using the Layer Two Tunneling Protocol version 3 (L2TPv3).

Status of This Memo

   This is an Internet Standards Track document.

   This document is a product of the Internet Engineering Task Force    (IETF).  It represents the consensus of the IETF community.  It has    received public review and has been approved for publication by the    Internet Engineering Steering Group (IESG).  Further information on    Internet Standards is available in Section 2 of RFC 7841.

   Information about the current status of this document, any errata,    and how to provide feedback on it may be obtained at    http://www.rfc-editor.org/info/rfc7886.

Copyright Notice

   Copyright (c) 2016 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    (http://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.

Govindan & Pignataro         Standards Track                    [Page 1]
 RFC 7886             S-BFD Discriminators in L2TPv3            July 2016

 Table of Contents

   1. Introduction ....................................................2       1.1. Terminology ................................................2    2. S-BFD Target Discriminator ID AVP ...............................2       2.1. Encoding Format ............................................3    3. IANA Considerations .............................................4    4. Security Considerations .........................................4    5. References ......................................................5       5.1. Normative Refe...