[Search] [txt|pdf|bibtex] [Tracker] [WG] [Email] [Nits]

Versions: 00 01 02 03 04 05 rfc5943                                     
IETF                                                    B. Haberman, Ed.
Internet-Draft                                                   JHU APL
Intended status: Standards Track                            May 11, 2009
Expires: November 12, 2009


     A Dedicated RPSL Interface Identifier for Operational Testing
                 draft-haberman-rpsl-reachable-test-00

Status of this Memo

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

   Internet-Drafts are working documents of the Internet Engineering
   Task Force (IETF), its areas, and its working groups.  Note that
   other groups may also distribute working documents as Internet-
   Drafts.

   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."

   The list of current Internet-Drafts can be accessed at
   http://www.ietf.org/ietf/1id-abstracts.txt.

   The list of Internet-Draft Shadow Directories can be accessed at
   http://www.ietf.org/shadow.html.

   This Internet-Draft will expire on November 12, 2009.

Copyright Notice

   Copyright (c) 2009 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 in effect on the date of
   publication of this document (http://trustee.ietf.org/license-info).
   Please review these documents carefully, as they describe your rights
   and restrictions with respect to this document.

Abstract

   The deployment of new IP connectivity typically results in
   intermittent reachability for numerous reasons which are outside the
   scope of this document.  In order to aid in the debugging of these



Haberman                Expires November 12, 2009               [Page 1]


Internet-Draft           RPSL Pingable Attribute                May 2009


   persistent problems, this document proposes the creation of a new
   Routing Policy Specification Language object that allows a network to
   advertise an IP address which is reachable and can be used as a
   target for diagnostic tests (e.g., pings).


Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . . . 3
   2.  RPSL Extension for Diagnostic Address . . . . . . . . . . . . . 3
   3.  Using the RPSL Pingable Attribute . . . . . . . . . . . . . . . 4
   4.  IANA Considerations . . . . . . . . . . . . . . . . . . . . . . 4
   5.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . . . 4
   6.  References  . . . . . . . . . . . . . . . . . . . . . . . . . . 4
     6.1.  Normative References  . . . . . . . . . . . . . . . . . . . 4
     6.2.  Informative References  . . . . . . . . . . . . . . . . . . 4
   Author's Address  . . . . . . . . . . . . . . . . . . . . . . . . . 4


































Haberman                Expires November 12, 2009               [Page 2]


Internet-Draft           RPSL Pingable Attribute                May 2009


1.  Introduction

   The deployment of new IP connectivity typically results in
   intermittent reachability for numerous reasons which are outside the
   scope of this document.  In order to aid in the debugging of these
   persistent problems, this document proposes the creation of a new
   Routing Policy Specification Language object [RFC4012] that allows a
   network to advertise an IP address which is reachable and can be used
   as a target for diagnostic tests (e.g., pings).

   The goal of this diagnostic address is to provide operators a means
   to advertise selected hosts that can be targets of tests for such
   common issues as reachability and Path MTU discovery.

   The capitalized 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
   [RFC2119].


2.  RPSL Extension for Diagnostic Address

   Network operators wishing to provide a diagnostic address for its
   peers, customers, etc. can advertise its existence via the Routing
   Policy Specification Language [RFC4012] [RFC2622].  The pingable
   attribute is a member of the aut-num class of the RPSL.  The debug
   attribute has the following characteristics:

   +-----------+-------------------------------+-----------------------+
   | Attribute |             Value             |          Type         |
   +-----------+-------------------------------+-----------------------+
   |  pingable |       <ipv6-address> or       |       optional,       |
   |           |         <ipv4-address>        |      multi-valued     |
   +-----------+-------------------------------+-----------------------+

   The pingable attribute allows a network operator to advertise an IP
   address of a node which should be reachable from outside networks.
   This node can be used as a destination address for diagnostic tests.
   An example of using the pingable attribute is shown in Figure 1.

   aut-num: AS64500
   pingable: 2001:DB8::DEAD:BEEF

                     Figure 1: DEBUG Attribute Example







Haberman                Expires November 12, 2009               [Page 3]


Internet-Draft           RPSL Pingable Attribute                May 2009


3.  Using the RPSL Pingable Attribute

   The presence of one or more pingable attributes signals to network
   operators that the maintainer of the referenced network is providing
   the address(es) for external diagnostic testing.  Tests involving the
   advertised address(es) MUST be rate limited to no more than ten
   probes in a five minute window.


4.  IANA Considerations

   None.


5.  Acknowledgements

   Randy Bush and David Farmer provided the original concept for the
   pingable attribute and useful comments on preliminary versions of
   this draft.


6.  References

6.1.  Normative References

   [RFC2119]  Bradner, S., "Key words for use in RFCs to Indicate
              Requirement Levels", BCP 14, RFC 2119, March 1997.

   [RFC2622]  Alaettinoglu, C., Villamizar, C., Gerich, E., Kessens, D.,
              Meyer, D., Bates, T., Karrenberg, D., and M. Terpstra,
              "Routing Policy Specification Language (RPSL)", RFC 2622,
              June 1999.

   [RFC4012]  Blunk, L., Damas, J., Parent, F., and A. Robachevsky,
              "Routing Policy Specification Language next generation
              (RPSLng)", RFC 4012, March 2005.

6.2.  Informative References













Haberman                Expires November 12, 2009               [Page 4]


Internet-Draft           RPSL Pingable Attribute                May 2009


Author's Address

   Brian Haberman (editor)
   Johns Hopkins University Applied Physics Lab
   11100 Johns Hopkins Road
   Laurel, MD  20723-6099
   US

   Phone: +1 443 778 1319
   Email: brian@innovationslab.net









































Haberman                Expires November 12, 2009               [Page 5]