Deprecating the Use of Router Alert in LSP Ping
draft-ietf-mpls-lspping-norao-08

Approval announcement
Draft of message to be sent after approval:

Announcement

From: The IESG <iesg-secretary@ietf.org>
To: IETF-Announce <ietf-announce@ietf.org>
Cc: The IESG <iesg@ietf.org>, adrian@olddog.co.uk, andrew-ietf@liquid.tech, draft-ietf-mpls-lspping-norao@ietf.org, mpls-chairs@ietf.org, mpls@ietf.org, rfc-editor@rfc-editor.org
Subject: Protocol Action: 'Deprecating the Use of Router Alert in LSP Ping' to Proposed Standard (draft-ietf-mpls-lspping-norao-08.txt)

The IESG has approved the following document:
- 'Deprecating the Use of Router Alert in LSP Ping'
  (draft-ietf-mpls-lspping-norao-08.txt) as Proposed Standard

This document is the product of the Multiprotocol Label Switching Working
Group.

The IESG contact persons are Jim Guichard, Andrew Alston and John Scudder.

A URL of this Internet-Draft is:
https://datatracker.ietf.org/doc/draft-ietf-mpls-lspping-norao/

Ballot Text

Technical Summary

   The MPLS echo request and MPLS echo response messages, defined in RFC
   8029 "Detecting Multiprotocol Label Switched (MPLS) Data-Plane
   Failures" (usually referred to as LSP ping messages), are
   encapsulated in IP headers that include a Router Alert Option (RAO).
   The rationale for using an RAO as the exception mechanism is
   questionable.  Furthermore, RFC 6398 identifies security
   vulnerabilities associated with the RAO in non-controlled
   environments, e.g., the case of using the MPLS echo request/reply as
   inter-area OAM, and recommends against its use outside of controlled
   environments.

   Therefore, this document retires the RAO for MPLS Operations,
   Administration, and Maintenance (OAM).  It reclassifies RFC 7506 as
   Historic and updates RFC 8029 to remove the RAO from LSP ping message
   encapsulations.

   This document also recommends the use of an IPv6 loopback address
   (::1/128) and not the use of an IPv4 loopback address mapped to IPv6.

Working Group Summary

   No issues to note.

Document Quality

   This document deprecates RFC7506 and updates RFC8029 to remove from the router alert option from ping encapsulation.

Personnel

   The Document Shepherd for this document is Adrian Farrel. The
   Responsible Area Director is Andrew Alston.

IANA Note

  Nothing beyond the IANA considerations as specified in the document

RFC Editor Note

RFC Editor Note

To ensure process is followed - final publication of this draft needs to be held pending a draft to make RFC7506 historic.