Title:
PATH COMPUTATION ELEMENT CENTRAL CONTROLLERS (PCECCS) FOR NETWORK SERVICES
Document Type and Number:
WIPO Patent Application WO/2017/005157
Kind Code:
A1
Abstract:
A method implemented by a path computation element centralized controller (PCECC), the method comprises: receiving a service request to provision for a service from a first edge node and a second edge node in a network; computing a path for a label switched path (LSP) from the first edge node to the second edge node in response to the service request; reserving label information for forwarding traffic of the service on the LSP; and sending a label update message to a third node on the path to facilitate forwarding of the traffic of the service on the path, wherein the label update message comprises the label information.
Inventors:
ZHAO QIANGLIN QUINTIN (US)
LI RENWEI (US)
LI RENWEI (US)
Application Number:
PCT/CN2016/088389
Publication Date:
January 12, 2017
Filing Date:
July 04, 2016
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H04L45/02; H04L45/50; H04L45/42; H04L45/74; H04L45/741; H04L47/724
Domestic Patent References:
| WO2015043681A1 | 2015-04-02 | |||
| WO2013149675A1 | 2013-10-10 |
Foreign References:
| US20150103844A1 | 2015-04-16 | |||
| CN103354988A | 2013-10-16 | |||
| CN104067574A | 2014-09-24 | |||
| US20150103844A1 | 2015-04-16 |
Other References:
ZHAO, QUINTIN ET AL.: "The Use Cases for Using PCE as the Central Controller(PCECC) of LSPs", DRAFT-ZHAO-PCE-CENTRAL-CONTROLLER-USER-CASES-01, 4 July 2014 (2014-07-04), XP015100493
"PCEP Procedures and Protocol Extensions for Using PCE as a Central Controller (PCECC) of LSPs", INTERNET ENGINEERING TASK FORCE (IETF, 2 March 2015 (2015-03-02)
See also references of EP 3295622A4
"PCEP Procedures and Protocol Extensions for Using PCE as a Central Controller (PCECC) of LSPs", INTERNET ENGINEERING TASK FORCE (IETF, 2 March 2015 (2015-03-02)
See also references of EP 3295622A4
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