< draft-pelletier-mpls-ldp-bindings-refresh-01.txt   draft-pelletier-mpls-ldp-bindings-refresh-02.txt >
MPLS Working Group Andre Pelletier MPLS Working Group Andre Pelletier
Internet Draft Kamran Raza Internet Draft Kamran Raza
Intended status: Standards Track Intended status: Standards Track
Expires: October 30, 2012 Cisco Systems, Inc. Expires: August 24, 2013 Cisco Systems, Inc.
May 1, 2012 February 25, 2013
LDP Bindings Refresh LDP Bindings Refresh
draft-pelletier-mpls-ldp-bindings-refresh-01.txt draft-pelletier-mpls-ldp-bindings-refresh-02.txt
Status of this Memo Status of this Memo
This Internet-Draft is submitted in full conformance with the This Internet-Draft is submitted in full conformance with the
provisions of BCP 78 and BCP 79. This document may not be modified, provisions of BCP 78 and BCP 79. This document may not be modified,
and derivative works of it may not be created, except to publish it and derivative works of it may not be created, except to publish it
as an RFC and to translate it into languages other than English. as an RFC and to translate it into languages other than English.
Internet-Drafts are working documents of the Internet Engineering Internet-Drafts are working documents of the Internet Engineering
Task Force (IETF), its areas, and its working groups. Note that Task Force (IETF), its areas, and its working groups. Note that
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months and may be updated, replaced, or obsoleted by other documents months and may be updated, replaced, or obsoleted by other documents
at any time. It is inappropriate to use Internet-Drafts as at any time. It is inappropriate to use Internet-Drafts as
reference material or to cite them other than as "work in progress." reference material or to cite them other than as "work in progress."
The list of current Internet-Drafts can be accessed at The list of current Internet-Drafts can be accessed at
http://www.ietf.org/ietf/1id-abstracts.txt http://www.ietf.org/ietf/1id-abstracts.txt
The list of Internet-Draft Shadow Directories can be accessed at The list of Internet-Draft Shadow Directories can be accessed at
http://www.ietf.org/shadow.html http://www.ietf.org/shadow.html
This Internet-Draft will expire on October 30, 2012. This Internet-Draft will expire on August 24, 2013.
Copyright Notice Copyright Notice
Copyright (c) 2012 IETF Trust and the persons identified as the Copyright (c) 2013 IETF Trust and the persons identified as the
document authors. All rights reserved. document authors. All rights reserved.
This document is subject to BCP 78 and the IETF Trust's Legal This document is subject to BCP 78 and the IETF Trust's Legal
Provisions Relating to IETF Documents Provisions Relating to IETF Documents
(http://trustee.ietf.org/license-info) in effect on the date of (http://trustee.ietf.org/license-info) in effect on the date of
publication of this document. Please review these documents publication of this document. Please review these documents
carefully, as they describe your rights and restrictions with carefully, as they describe your rights and restrictions with
respect to this document. respect to this document.
Abstract Abstract
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successfully, an LDP speaker: successfully, an LDP speaker:
o MAY send a START marker prior to responding with the requested o MAY send a START marker prior to responding with the requested
bindings. Returning a START marker is OPTIONAL, as the requesting bindings. Returning a START marker is OPTIONAL, as the requesting
LSR is able to infer that the request itself is equivalent to a LSR is able to infer that the request itself is equivalent to a
START marker; all requested bindings will implicitly follow the START marker; all requested bindings will implicitly follow the
request event. request event.
o MUST signal completion of the response by sending an END marker. o MUST signal completion of the response by sending an END marker.
When sending an END marker in response to a Wildcard Request, the When sending an END marker in response to a Wildcard Request, the
END marker notification message MUST contain the "Message ID" TLV of END marker notification message MUST contain the "Message ID" TLV
the associated Wildcard request. This ensures that the receiver is of the associated Wildcard request. This ensures that the receiver
able to correlate the END marker back to the associated wildcard is able to correlate the END marker back to the associated wildcard
request, as opposed to some unrelated END sent as part of an request, as opposed to some unrelated END sent as part of an
unsolicited re-advertisement. This additional "Message ID" TLV is unsolicited re-advertisement. This additional "Message ID" TLV is
placed under the "Optional Parameters" section of an LDP placed under the "Optional Parameters" section of an LDP
Notification message. This specification, thus, also updates the Notification message. This specification, thus, also updates the
End-of-LIB notification format as originally defined in RFC5919. End-of-LIB notification format as originally defined in RFC5919.
The requesting LDP speaker MAY assume that any bindings that were The requesting LDP speaker MAY assume that any bindings that were
not returned between the request and the END marker containing the not returned between the request and the END marker containing the
associated message ID TLV response are stale, and may be purged. associated message ID TLV response are stale, and may be purged.
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0x00000032 0 Start-of-Addresses 0x00000032 0 Start-of-Addresses
0x00000033 0 End-of-Addresses 0x00000033 0 End-of-Addresses
8. References 8. References
8.1. Normative References 8.1. Normative References
[RFC5036] Andersson, L., Doolan, P., Feldman, N., Fredette, A. and [RFC5036] Andersson, L., Doolan, P., Feldman, N., Fredette, A. and
Thomas, B., "LDP Specification", RFC 5036, January 2001. Thomas, B., "LDP Specification", RFC 5036, January 2001.
[RFC5919] R. Asati, P. Mohapatra, E. Chen, B. Thomas, "Signaling LDP [RFC5919] R. Asati, P. Mohapatra, E. Chen, B. Thomas, "Signaling
Label Advertisement Completion", RFC 5919, August 2010. LDP Label Advertisement Completion", RFC 5919,
August 2010.
[RFC5918] Asati, R., Minei, I., and Thomas, B. "Label Distribution [RFC5918] Asati, R., Minei, I., and Thomas, B. "Label Distribution
Protocol Typed Wildcard FEC", RFC 5918, August 2010. Protocol Typed Wildcard FEC", RFC 5918, August 2010.
[RFC2119] Bradner, S., "Key words for use in RFCs to Indicate [RFC2119] Bradner, S., "Key words for use in RFCs to Indicate
Requirement Levels", BCP 14, RFC 2119, March 1997. Requirement Levels", BCP 14, RFC 2119, March 1997.
[RFC5561] Thomas, B., Raza, K., Aggarwal, S., Aggarwal, R., and JL. [RFC5561] Thomas, B., Raza, K., Aggarwal, S., Aggarwal, R., and
Le Roux, "LDP Capabilities", RFC 5561, July 2009. JL. Le Roux, "LDP Capabilities", RFC 5561, July 2009.
8.2. Informative References 8.2. Informative References
[RFC5920] Fang, L. et al., "Security Framework for MPLS and GMPLS [RFC5920] Fang, L. et al., "Security Framework for MPLS and GMPLS
Networks", RFC 5920, July 2010. Networks", RFC 5920, July 2010.
9. Acknowledgments 9. Acknowledgments
The authors would like to acknowledge Eric Rosen for his review and The authors would like to acknowledge Eric Rosen for his review and
input on this specification. input on this specification.
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