draft-ietf-pce-stateful-sync-optimizations-02.txt   draft-ietf-pce-stateful-sync-optimizations-03.txt 
PCE Working Group E. Crabbe PCE Working Group E. Crabbe
Internet-Draft Internet-Draft
Intended status: Standards Track I. Minei Intended status: Standards Track I. Minei
Expires: July 16, 2015 Google, Inc. Expires: April 8, 2016 Google, Inc.
J. Medved J. Medved
Cisco Systems, Inc. Cisco Systems, Inc.
R. Varga R. Varga
Pantheon Technologies SRO Pantheon Technologies SRO
X. Zhang X. Zhang
D. Dhody D. Dhody
Huawei Technologies Huawei Technologies
January 12, 2015 October 6, 2015
Optimizations of Label Switched Path State Synchronization Procedures Optimizations of Label Switched Path State Synchronization Procedures
for a Stateful PCE for a Stateful PCE
draft-ietf-pce-stateful-sync-optimizations-02 draft-ietf-pce-stateful-sync-optimizations-03
Abstract Abstract
A stateful Path Computation Element (PCE) has access to not only the A stateful Path Computation Element (PCE) has access to not only the
information disseminated by the network's Interior Gateway Protocol information disseminated by the network's Interior Gateway Protocol
(IGP), but also the set of active paths and their reserved resources (IGP), but also the set of active paths and their reserved resources
for its computation. The additional Label Switched Path (LSP) state for its computation. The additional Label Switched Path (LSP) state
information allows the PCE to compute constrained paths while information allows the PCE to compute constrained paths while
considering individual LSPs and their interactions. This requires a considering individual LSPs and their interactions. This requires a
reliable state synchronization mechanism between the PCE and the reliable state synchronization mechanism between the PCE and the
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Internet-Drafts are working documents of the Internet Engineering Internet-Drafts are working documents of the Internet Engineering
Task Force (IETF). Note that other groups may also distribute Task Force (IETF). Note that other groups may also distribute
working documents as Internet-Drafts. The list of current Internet- working documents as Internet-Drafts. The list of current Internet-
Drafts is at http://datatracker.ietf.org/drafts/current/. Drafts is at http://datatracker.ietf.org/drafts/current/.
Internet-Drafts are draft documents valid for a maximum of six months Internet-Drafts are draft documents valid for a maximum of six months
and may be updated, replaced, or obsoleted by other documents at any and may be updated, replaced, or obsoleted by other documents at any
time. It is inappropriate to use Internet-Drafts as reference time. It is inappropriate to use Internet-Drafts as reference
material or to cite them other than as "work in progress." material or to cite them other than as "work in progress."
This Internet-Draft will expire on July 16, 2015. This Internet-Draft will expire on April 8, 2016.
Copyright Notice Copyright Notice
Copyright (c) 2015 IETF Trust and the persons identified as the Copyright (c) 2015 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
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P.R. China P.R. China
Email: xiegang09@huawei.com Email: xiegang09@huawei.com
13. References 13. References
13.1. Normative References 13.1. Normative References
[I-D.ietf-pce-stateful-pce] [I-D.ietf-pce-stateful-pce]
Crabbe, E., Minei, I., Medved, J., and R. Varga, "PCEP Crabbe, E., Minei, I., Medved, J., and R. Varga, "PCEP
Extensions for Stateful PCE", draft-ietf-pce-stateful- Extensions for Stateful PCE", draft-ietf-pce-stateful-
pce-10 (work in progress), October 2014. pce-11 (work in progress), April 2015.
[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,
DOI 10.17487/RFC2119, March 1997,
<http://www.rfc-editor.org/info/rfc2119>.
[RFC5440] Vasseur, JP. and JL. Le Roux, "Path Computation Element [RFC5440] Vasseur, JP., Ed. and JL. Le Roux, Ed., "Path Computation
(PCE) Communication Protocol (PCEP)", RFC 5440, March Element (PCE) Communication Protocol (PCEP)", RFC 5440,
2009. DOI 10.17487/RFC5440, March 2009,
<http://www.rfc-editor.org/info/rfc5440>.
13.2. Informative References 13.2. Informative References
[I-D.ietf-pce-pce-initiated-lsp] [I-D.ietf-pce-pce-initiated-lsp]
Crabbe, E., Minei, I., Sivabalan, S., and R. Varga, "PCEP Crabbe, E., Minei, I., Sivabalan, S., and R. Varga, "PCEP
Extensions for PCE-initiated LSP Setup in a Stateful PCE Extensions for PCE-initiated LSP Setup in a Stateful PCE
Model", draft-ietf-pce-pce-initiated-lsp-02 (work in Model", draft-ietf-pce-pce-initiated-lsp-04 (work in
progress), October 2014. progress), April 2015.
Authors' Addresses Authors' Addresses
Edward Crabbe Edward Crabbe
Email: edward.crabbe@gmail.com Email: edward.crabbe@gmail.com
Ina Minei Ina Minei
Google, Inc. Google, Inc.
1600 Amphitheatre Parkway 1600 Amphitheatre Parkway
skipping to change at page 23, line 6 skipping to change at page 23, line 6
Xian Zhang Xian Zhang
Huawei Technologies Huawei Technologies
F3-5-B R&D Center, Huawei Industrial Base, Bantian, Longgang District F3-5-B R&D Center, Huawei Industrial Base, Bantian, Longgang District
Shenzhen, Guangdong 518129 Shenzhen, Guangdong 518129
P.R.China P.R.China
Email: zhang.xian@huawei.com Email: zhang.xian@huawei.com
Dhruv Dhody Dhruv Dhody
Huawei Technologies Huawei Technologies
Leela Palace Divyashree Techno Park, Whitefield
Bangalore, Karnataka 560008 Bangalore, Karnataka 560037
India India
Email: dhruv.ietf@gmail.com Email: dhruv.ietf@gmail.com
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