PCEP Extension for Flexible Grid Networks
draft-ietf-pce-flexible-grid-04
PCE Working Group Y. Lee
Internet Draft Samsung
Intended status: Standard Track H. Zheng (Editor)
Expires: February 28, 2021 Huawei Technologies
R. Casellas
R. Vilalta
CTTC
D. Ceccarelli
F. Lazzeri
Ericsson
August 27, 2020
PCEP Extension for Flexible Grid Networks
draft-ietf-pce-flexible-grid-04
Abstract
This document provides the Path Computation Element Communication
Protocol (PCEP) extensions for the support of Routing and Spectrum
Assignment (RSA) in Flexible Grid networks.
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This Internet-Draft will expire on February 28, 2020.
Lee, et al Expires February 2021 [Page 1]
Internet-Draft PCEP Extension for Flexible Grid August 2020
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Table of Contents
1. Terminology ................................................. 3
2. Requirements Language ....................................... 3
3. Introduction ................................................ 3
4. Spectrum Assignment (SA) Object ............................. 4
4.1. Frequency-Slot Selection TLV ........................... 6
4.2. Frequency-slot Restriction Constraint TLV .............. 8
4.2.1. Frequency-Slot Restriction Field ................. 10
5. Encoding of a RSA Path Reply ............................... 10
5.1. Error Indicator........................................ 11
5.2. NO-PATH Indicator ..................................... 11
6. Manageability Considerations ............................... 12
6.1. Control of Function and Policy ........................ 12
6.2. Information and Data Models ........................... 12
6.3. Verifying Correct Operation ........................... 12
6.4. Requirements on Other Protocols and Functional Components13
6.5. Impact on Network Operation ........................... 13
7. Implementation Status ...................................... 13
8. Security Considerations .................................... 14
9. IANA Considerations ........................................ 14
9.1. New PCEP Object........................................ 14
9.2. New PCEP TLV: Frequency Slot Selection TLV ............ 14
9.3. New PCEP TLV: Frequency Slot Restriction Constraint TLV.14
9.4. New PCEP TLV: Spectrum Allocation TLV ................. 15
9.5. New No-Path Reasons ................................... 15
9.6. New Error-Types and Error-Values ...................... 16
9.7. New Error-Values for Existing Error Type (24) ......... 16
10. References ................................................ 16
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