RSVP ASSOCIATION Object Extensions
RFC 6780

"Unknown object C-Type" error.  This error will propagate
   to the ingress node for standard error processing.

   Operators wishing to use a function supported by a particular
   association type should ensure that the type is supported on any node
   that is expected to act on the association.

6.  Security Considerations

   A portion of this document reviews procedures defined in [RFC4872]
   and [RFC4873] and does not define new procedures.  As such, no new
   security considerations are introduced in this portion of the
   document.

   Section 3 defines broader usage of the ASSOCIATION object, but does
   not fundamentally expand on the association function that was
   previously defined in [RFC4872] and [RFC4873].  Section 4 increases
   the number of bits that are carried in an ASSOCIATION object (by 32),
   and similarly does not expand on the association function that was
   previously defined.  This broader definition does allow for
   additional information to be conveyed, but this information is not
   fundamentally different from the information that is already carried

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RFC 6780                     RSVP Extensions                October 2012

   in RSVP.  Therefore, there are no new risks or security
   considerations introduced by this document.

   For a general discussion on MPLS- and GMPLS-related security issues,
   including RSVP's chain of trust security model, see the MPLS/GMPLS
   security framework [RFC5920].

7.  IANA Considerations

   IANA has assigned new values for namespaces defined in this document
   and they are summarized in this section.

7.1.  IPv4 and IPv6 Extended ASSOCIATION Objects

   Per this document, IANA has assigned two new C-Types (which are
   defined in Section 3.1) for the existing ASSOCIATION object in the
   "Class Names, Class Numbers, and Class Types" section of the
   "Resource Reservation Protocol (RSVP) Parameters" registry located at
   http://www.iana.org/assignments/rsvp-parameters:

   199  ASSOCIATION                           [RFC4872]

        Class Types or C-Types

           3   Type 3 IPv4 Extended Association   [RFC6780]
           4   Type 4 IPv6 Extended Association   [RFC6780]

7.2.  Resource Sharing Association Type

   This document also broadens the potential usage of the Resource
   Sharing Association Type defined in [RFC4873].  As such, IANA has
   updated the reference of the Resource Sharing Association Type
   included in the associated registry.  Per this document, IANA has
   also corrected the duplicate usage of '(R)' in this registry.  In
   particular, the "Association Type" registry found at
   http://www.iana.org/assignments/gmpls-sig-parameters/ has been
   updated as follows:

      OLD:
        2         Resource Sharing (R)      [RFC4873]

      NEW:
        2         Resource Sharing (S)      [RFC4873][RFC6780]

   There are no other IANA considerations introduced by this document.

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8.  Acknowledgments

   Valuable comments and input were received from Dimitri Papadimitriou,
   Fei Zhang, and Adrian Farrel.  We thank Subha Dhesikan for her
   contribution to the early work on sharing of resources across RSVP
   reservations.

9.  References

9.1.  Normative References

   [RFC2205]  Braden, R., Ed., Zhang, L., Berson, S., Herzog, S., and S.
              Jamin, "Resource ReSerVation Protocol (RSVP) -- Version 1
              Functional Specification", RFC 2205, September 1997.

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

   [RFC3209]  Awduche, D., Berger, L., Gan, D., Li, T., Srinivasan, V.,
              and G. Swallow, "RSVP-TE: Extensions to RSVP for LSP
              Tunnels", RFC 3209, December 2001.

   [RFC3473]  Berger, L., Ed., "Generalized Multi-Protocol Label
              Switching (GMPLS) Signaling Resource ReserVation
              Protocol-Traffic Engineering (RSVP-TE) Extensions", RFC
              3473, January 2003.

   [RFC4872]  Lang, J., Ed., Rekhter, Y., Ed., and D. Papadimitriou,
              Ed., "RSVP-TE Extensions in Support of End-to-End
              Generalized Multi-Protocol Label Switching (GMPLS)
              Recovery", RFC 4872, May 2007.

   [RFC4873]  Berger, L., Bryskin, I., Papadimitriou, D., and A. Farrel,
              "GMPLS Segment Recovery", RFC 4873, May 2007.

   [RFC5511]  Farrel, A., "Routing Backus-Naur Form (RBNF): A Syntax
              Used to Form Encoding Rules in Various Routing Protocol
              Specifications", RFC 5511, April 2009.

9.2.  Informative References

   [RFC2207]  Berger, L. and T. O'Malley, "RSVP Extensions for IPSEC
              Data Flows", RFC 2207, September 1997.

   [RFC3175]  Baker, F., Iturralde, C., Le Faucheur, F., and B. Davie,
              "Aggregation of RSVP for IPv4 and IPv6 Reservations", RFC
              3175, September 2001.

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RFC 6780                     RSVP Extensions                October 2012

   [RFC4860]  Le Faucheur, F., Davie, B., Bose, P., Christou, C., and M.
              Davenport, "Generic Aggregate Resource ReSerVation
              Protocol (RSVP) Reservations", RFC 4860, May 2007.

   [RFC5003]  Metz, C., Martini, L., Balus, F., and J. Sugimoto,
              "Attachment Individual Identifier (AII) Types for
              Aggregation", RFC 5003, September 2007.

   [RFC5389]  Rosenberg, J., Mahy, R., Matthews, P., and D. Wing,
              "Session Traversal Utilities for NAT (STUN)", RFC 5389,
              October 2008.

   [RFC5920]  Fang, L., Ed., "Security Framework for MPLS and GMPLS
              Networks", RFC 5920, July 2010.

   [RFC6370]  Bocci, M., Swallow, G., and E. Gray, "MPLS Transport
              Profile (MPLS-TP) Identifiers", RFC 6370, September 2011.

   [RFC6689]  Berger, L., "Usage of the RSVP ASSOCIATION Object", RFC
              6689, July 2012.

Authors' Addresses

   Lou Berger
   LabN Consulting, L.L.C.
   Phone: +1-301-468-9228
   EMail: lberger@labn.net

   Francois Le Faucheur
   Cisco Systems
   Greenside, 400 Avenue de Roumanille
   Sophia Antipolis 06410
   France
   EMail: flefauch@cisco.com

   Ashok Narayanan
   Cisco Systems
   300 Beaver Brook Road
   Boxborough, MA 01719
   United States
   EMail: ashokn@cisco.com

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