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GB/T 21645.11-2017: Technical requirements for Automatically Switched Optical Network (ASON) -- Part 11: Path Computation Element (PCE) and protocol
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Technical requirements for Automatically Switched Optical Network (ASON) -- Part 11: Path Computation Element (PCE) and protocol
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GB/T 21645.11-2017
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Basic data | Standard ID | GB/T 21645.11-2017 (GB/T21645.11-2017) | | Description (Translated English) | Technical requirements for Automatically Switched Optical Network (ASON) -- Part 11: Path Computation Element (PCE) and protocol | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | M33 | | Classification of International Standard | 33.040.20 | | Word Count Estimation | 70,782 | | Date of Issue | 2017-05-12 | | Date of Implementation | 2017-12-01 | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | GB/T 21645.11-2017: Technical requirements for Automatically Switched Optical Network (ASON) -- Part 11: Path Computation Element (PCE) and protocol
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Technical requirements for Automatically Switched Optical Network (ASON) - Part 11. Path Computation Element (PCE) and protocol
ICS 33.040.20
M33
National Standards of People's Republic of China
Automatic switching optical network (ASON) technical requirements
Part 11. Path Calculation Unit (PCE) and Protocol
TechnicalrequirementsforAutomaticalySwitchedOpticalNetwork (ASON) -
Part 11. PathComputationElement (PCE) andprotocol
2017-05-12 released
2017-12-01 implementation
General Administration of Quality Supervision, Inspection and Quarantine of the People 's Republic of China
China National Standardization Management Committee released
Directory
Preface III
1 Scope 1
2 normative reference document 1
3 terms and definitions, abbreviations 1
3.1 Terms and definitions 1
3.2 Abbreviations 2
4 path calculation unit (PCE) function architecture 3
4.1 Path Calculation Unit (PCE) Definition 3
4.2 PCE overall function architecture 4
4.3 PCE implementation 4
4.4 PCE deployment plan 6
5 PCE path calculation capability 8
5.1 Overview 8
5.2 Single-domain routing calculation capability 9
5.3 Multi-domain routing calculation capability 10
5.4 Multi-level path calculation capability 11
6 PCE communication protocol
6.1 PCE communication protocol requirements 12
6.2 PCEP protocol message exchange process 13
6.3 PCEP message definition 17
7 PCE found 41
7.1 Topology Resource Capability Discovery Requirements
7.2 Path Computing Capability Discovery 41
7.3 PCE Manual Configuration 43
8 PCE communication channel 43
8.1 Implementation of communication channels 43
8.2 Communication channel reliability requirements 43
9 PCE Management Requirements 43
9.1 Configuration Management 43
9.2 Performance Management Parameters 44
9.3 Alarm Management 44
Reliability Requirements for PCE
Security requirements
11.1 Path calculation confidentiality requirements 44
11.2 PCEP protocol security requirements
11.3 Discovering security requirements
12 PCE performance requirements
Appendix A (informative) PCE applied to WSON network 47
A.1 PCE applied to WSON path calculation requirements
A.2 WSON Routing and Wavelength Assignment PCEP Extension 48
Appendix B (informative) Interlayer PCE path calculation application 53
B.1 Overview 53
B.2 Inter - layer PCE path calculation model
B.3 Inter - layer PCE Route Control Model
Appendix C (informative) Reverse recursive path calculation (BRPC) mechanism Multi - domain application 59
C.1 Reverse Recursive Path Calculation (BRPC) Overview 59
CPC Multi - Domain Path Calculation Process Example
Appendix D (informative) Application scenarios for PCE auto discovery
Appendix E (informative) path key (PathKey) to achieve the process of path confidentiality 63
E.1 path confidentiality implementation process
E.2 PKS Object PCEP Protocol Extension 63
Foreword
GB/T 21645 "Automatic Switching Optical Network (ASON) Technical Requirements" consists of the following components.
- Part 1. architecture and overall requirements;
- Part 2. Terms and definitions;
- Part 3. Data communication network (DCN);
- Part 4. Signaling;
- Part 5. User Network Interface (UNI);
- Part 6. Management Plans;
- Part 7. Automatic discovery;
- Part 8. Routing;
- Part 9. External network - Network interface (E-NNI);
- Part 10. Multilayer multi - domain control plane;
- Part 11. Path Computing Unit (PCE) and Protocol.
This part is part 11 of GB/T 21645.
This part is drafted in accordance with the rules given in GB/T 1.1-2009.
This part is made by the Ministry of Industry and Information Technology of the People's Republic of China.
This part is part of the Ministry of Industry and Information Technology (communications) of the People's Republic of China.
This part of the drafting unit. China Information and Communication Research Institute, Huawei Technologies Co., Ltd., China United Network Communications Group Co., Ltd., Wuhan
Fiberhome Technology Group Co., Ltd., Shanghai Bell Co., Ltd.
The main drafters of this part. Xu Yubin, Zhang Guoying, Rao Baoquan, Wang Haijun, Zhang Bingyan, Yi Xiaobo, Wang Yu, Ding Hui.
Automatic switching optical network (ASON) technical requirements
Part 11. Path Calculation Unit (PCE) and Protocol
1 Scope
This part of GB/T 21645 specifies the Automatic Switching Optical Network (ASON) Path Calculation Unit (PCE) and protocol, which mainly includes.
PCE functional architecture, path computing capability, communication protocol requirements, PCE discovery requirements, communication channels, management requirements, security requirements, reliability
Requirements and performance requirements.
This section applies to ASON networks and devices that use PCE for path calculation.
2 normative reference documents
The following documents are indispensable for the application of this document. For dated references, only the dated edition applies to this article
Pieces. For undated references, the latest edition (including all modifications) applies to this document.
GB/T 21645.1-2008 Automatic switching optical network (ASON) technical requirements - Part 1. Architecture and overall requirements
IETFRFC2210 IETF Integrated Services RSVP Application (TheUseofRSVPwithIETFIntegratedServices)
IETFRFC2385 protects BGP sessions through the TCPMD5 signature option (Protection ofBGPSessionsviathe
TCPMD5SignatureOption)
IETFRFC3471 GMPLS Signaling Function Description [GeneralizedMulti-ProtocolLabelSwitching (GMPLS)
SignalingFunctionalDescription]
IETFRFC4328 G.709OTN Controlled GMPLS Extension [GeneralizedMulti-ProtocolLabelSwitching
(GMPLS) SignalingExtensionsforG.709OpticalTransportNetworksControl]
IETFRFC4606 GMPLS extension for SONET/SDH control [GeneralizedMulti-ProtocolLabel
Switching (GMPLS) ExtensionsforSynchronousOpticalNetwork (SONET) andSynchronous
DigitalHierarchy (SDH) Control]
IETFRFC4655 PCE architecture [APathComputationElement (PCE) -BasedArchitecture]
IETFRFC5440 PCE communication protocol [PathComputationElement (PCE) CommunicationProtocol
(PCEP)]
IETFRFC6003 Ethernet traffic parameter (EthernetTrafficParameters)
IETFRFC6205 wavelength exchange capacity (LSC) label switching router common tag encoding [GeneralizedLabelsfor
Lambda-Switch-Capable (LSC) LabelSwitchingRouters]
3 terms and definitions, abbreviations
3.1 Terms and definitions
The following terms and definitions apply to this document.
3.1.1
Path key-value sub-object pathkeysub-sbject; PKS
By the path key and PCEID two fields. The path key is encoded with 16 bits, representing a path; PCEID can be used
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