draft-ietf-ccamp-lsp-dppm-04.txt   draft-ietf-ccamp-lsp-dppm-05.txt 
Network Working Group W. Sun, Ed. Network Working Group W. Sun, Ed.
Internet-Draft SJTU Internet-Draft SJTU
Intended status: Standards Track G. Zhang, Ed. Intended status: Standards Track G. Zhang, Ed.
Expires: July 12, 2009 CATR Expires: September 29, 2009 CATR
January 8, 2009 March 28, 2009
Label Switched Path (LSP) Dynamic Provisioning Performance Metrics in Label Switched Path (LSP) Dynamic Provisioning Performance Metrics in
Generalized MPLS Networks Generalized MPLS Networks
draft-ietf-ccamp-lsp-dppm-04.txt draft-ietf-ccamp-lsp-dppm-05.txt
Status of this Memo Status of this Memo
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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
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Abstract Abstract
Generalized Multi-Protocol Label Switching (GMPLS) is one of the most Generalized Multi-Protocol Label Switching (GMPLS) is one of the most
promising candidate technologies for future data transmission promising candidate technologies for future data transmission
network. GMPLS has been developed to control and operate different network. GMPLS has been developed to control and operate different
kinds of network elements, such as conventional routers, switches, kinds of network elements, such as conventional routers, switches,
Dense Wavelength Division Multiplexing (DWDM) systems, Add- Drop Dense Wavelength Division Multiplexing (DWDM) systems, Add- Drop
Multiplexors (ADMs), photonic cross-connects (PXCs), optical cross- Multiplexors (ADMs), photonic cross-connects (PXCs), optical cross-
connects (OXCs), etc. Dynamic provisioning ability of these connects (OXCs), etc. Dynamic provisioning ability of these
skipping to change at page 5, line 20 skipping to change at page 5, line 20
14.2. The Median of Metric . . . . . . . . . . . . . . . . . . . 39 14.2. The Median of Metric . . . . . . . . . . . . . . . . . . . 39
14.3. The percentile of Metric . . . . . . . . . . . . . . . . . 39 14.3. The percentile of Metric . . . . . . . . . . . . . . . . . 39
14.4. The Failure Probability . . . . . . . . . . . . . . . . . 39 14.4. The Failure Probability . . . . . . . . . . . . . . . . . 39
15. Discussion . . . . . . . . . . . . . . . . . . . . . . . . . . 40 15. Discussion . . . . . . . . . . . . . . . . . . . . . . . . . . 40
16. Security Considerations . . . . . . . . . . . . . . . . . . . 41 16. Security Considerations . . . . . . . . . . . . . . . . . . . 41
17. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 42 17. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 42
18. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . . 43 18. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . . 43
19. References . . . . . . . . . . . . . . . . . . . . . . . . . . 44 19. References . . . . . . . . . . . . . . . . . . . . . . . . . . 44
19.1. Normative References . . . . . . . . . . . . . . . . . . . 44 19.1. Normative References . . . . . . . . . . . . . . . . . . . 44
19.2. Informative References . . . . . . . . . . . . . . . . . . 44 19.2. Informative References . . . . . . . . . . . . . . . . . . 44
Editors' Addresses . . . . . . . . . . . . . . . . . . . . . . . . 45 Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . . 46
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . . 45
Intellectual Property and Copyright Statements . . . . . . . . . . 47
1. Introduction 1. Introduction
Generalized Multi-Protocol Label Switching (GMPLS) is one of the most Generalized Multi-Protocol Label Switching (GMPLS) is one of the most
promising control plane solutions for future transport and service promising control plane solutions for future transport and service
network. GMPLS has been developed to control and operate different network. GMPLS has been developed to control and operate different
kinds of network elements, such as conventional routers, switches, kinds of network elements, such as conventional routers, switches,
Dense Wavelength Division Multiplexing (DWDM) systems, Add-Drop Dense Wavelength Division Multiplexing (DWDM) systems, Add-Drop
Multiplexors (ADMs), photonic cross-connects (PXCs), optical cross- Multiplexors (ADMs), photonic cross-connects (PXCs), optical cross-
connects (OXCs), etc. Dynamic provisioning ability of these connects (OXCs), etc. Dynamic provisioning ability of these
skipping to change at page 40, line 25 skipping to change at page 40, line 25
process local procedure. Similarly, in the LSP graceful release process local procedure. Similarly, in the LSP graceful release
delay, the memo has not considered the processing time in the delay, the memo has not considered the processing time in the
endpoint node. endpoint node.
o This document assumes that the correct procedures for installing o This document assumes that the correct procedures for installing
the data plane are followed as described in [RFC3209], [RFC3471], the data plane are followed as described in [RFC3209], [RFC3471],
and [RFC3473]. That is, by the time the egress receives and and [RFC3473]. That is, by the time the egress receives and
processes a Path message, it is safe for the egress to transmit processes a Path message, it is safe for the egress to transmit
data on the reverse path, and by the time the ingress receives and data on the reverse path, and by the time the ingress receives and
processes a Resv message it is safe for the ingress to transmit processes a Resv message it is safe for the ingress to transmit
data on the forward path. This document does not include any data on the forward path. See [switch-programming] for detailed
verification that the implementations of the control plane explanations. This document does not include any verification that
software are conformant, although such tests could be constructed the implementations of the control plane software are conformant,
with the use of suitable signal generation test equipment. Note although such tests could be constructed with the use of suitable
that, in implementing the tests described in this document a signal generation test equipment. Note that, in implementing the
tester should be sure to measure the time taken for the control tests described in this document a tester should be sure to
plane messages including the processing of those messages by the measure the time taken for the control plane messages including
nodes under test. the processing of those messages by the nodes under test.
o Bidirectional LSPs may be setup using three way signalling,where o Bidirectional LSPs may be setup using three way signalling,where
the initiate node will send a RESV_CONF message downsteam upon the initiate node will send a RESV_CONF message downsteam upon
receiving the RESV message. The RESV_CONF message is used to receiving the RESV message. The RESV_CONF message is used to
notify the terminate node that it can transfer data upstream. notify the terminate node that it can transfer data upstream.
Actually, both direction should be ready to transfer data when the Actually, both direction should be ready to transfer data when the
RESV message is received by the initiate node. Therefore, the RESV message is received by the initiate node. Therefore, the
bidirectional LSP setup delay defined in this document,does not bidirectional LSP setup delay defined in this document,does not
take the confirmation procedure in to account. take the confirmation procedure in to account.
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Network Interface (UNI): Resource ReserVation Protocol- Network Interface (UNI): Resource ReserVation Protocol-
Traffic Engineering (RSVP-TE) Support for the Overlay Traffic Engineering (RSVP-TE) Support for the Overlay
Model", RFC 4208, October 2005. Model", RFC 4208, October 2005.
[RFC4802] Nadeau, T. and A. Farrel, "Generalized Multiprotocol Label [RFC4802] Nadeau, T. and A. Farrel, "Generalized Multiprotocol Label
Switching (GMPLS) Traffic Engineering Management Switching (GMPLS) Traffic Engineering Management
Information Base", RFC 4802, February 2007. Information Base", RFC 4802, February 2007.
19.2. Informative References 19.2. Informative References
[switch-programming]
Shiomoto, K. and A. Farrel, "Advice on When It is Safe to
Start Sending Data on Label Switched Paths Established
Using RSVP-TE", draft-shiomoto-ccamp-switch-programming,
work in progress.
[RFC2330] Paxson, V., Almes, G., Mahdavi, J., and M. Mathis, [RFC2330] Paxson, V., Almes, G., Mahdavi, J., and M. Mathis,
"Framework for IP Performance Metrics", RFC 2330, "Framework for IP Performance Metrics", RFC 2330,
May 1998. May 1998.
Authors' Address Authors' Addresses
Weiqiang Sun Weiqiang Sun
Shanghai Jiao Tong University Shanghai Jiao Tong University
800 Dongchuan Road 800 Dongchuan Road
Shanghai 200240 Shanghai 200240
CN CN
Phone: +86 21 3420 5359 Phone: +86 21 3420 5359
Email: sunwq@sjtu.edu.cn Email: sunwq@mit.edu
Guoying Zhang Guoying Zhang
China Academy of Telecommunication Research,MII. China Academy of Telecommunication Research,MII.
Beijing 200240 Beijing 200240
CN CN
Phone: +86 1068094272 Phone: +86 1068094272
Email: zhangguoying@mail.ritt.com.cn Email: zhangguoying@mail.ritt.com.cn
Jianhua Gao Jianhua Gao
skipping to change at page 47, line 4 skipping to change at line 1749
Email: otani@kddilabs.jp Email: otani@kddilabs.jp
Ruiquan Jing Ruiquan Jing
China Telecom Beijing Research Institute China Telecom Beijing Research Institute
118 Xizhimenwai Avenue 118 Xizhimenwai Avenue
Beijing 100035 Beijing 100035
CN CN
Phone: +86-10-58552000 Phone: +86-10-58552000
Email: jingrq@ctbri.com.cn Email: jingrq@ctbri.com.cn
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