PCEP Extensions for LSP scheduling with stateful PCE
draft-zhuang-pce-stateful-pce-lsp-scheduling-05
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PCE Working Group H. Chen, Ed.
Internet-Draft Y. Zhuang, Ed.
Intended status: Standards Track Q. Wu
Expires: September 28, 2017 D. Dhody
Huawei
D. Ceccarelli
Ericsson
March 27, 2017
PCEP Extensions for LSP scheduling with stateful PCE
draft-zhuang-pce-stateful-pce-lsp-scheduling-05
Abstract
This document proposes a set of extensions needed to the stateful
Path Computation Element (PCE) communication Protocol (PCEP), so as
to enable Labeled Switched Path (LSP) scheduling for path computation
and LSP setup/deletion based on the actual network resource usage
duration of a traffic service in a centralized network environment as
stated in [I.D.ietf-teas-scheduled-resources].
Status of This Memo
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This Internet-Draft will expire on September 28, 2017.
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Copyright (c) 2017 IETF Trust and the persons identified as the
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This document is subject to BCP 78 and the IETF Trust's Legal
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Chen, et al. Expires September 28, 2017 [Page 1]
Internet-Draft LSP Scheduling March 2017
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 3
2. Conventions used in this document . . . . . . . . . . . . . . 4
2.1. Terminology . . . . . . . . . . . . . . . . . . . . . . . 4
3. Motivation and Objectives . . . . . . . . . . . . . . . . . . 5
4. Architecture Overview . . . . . . . . . . . . . . . . . . . . 5
4.1. LSP scheduling Overview . . . . . . . . . . . . . . . . . 5
4.2. Support of LSP Scheduling . . . . . . . . . . . . . . . . 6
4.2.1. LSP Scheduling . . . . . . . . . . . . . . . . . . . 7
4.2.2. Periodical LSP Scheduling . . . . . . . . . . . . . . 7
4.2.3. Stateful PCE Capability TLV . . . . . . . . . . . . . 8
4.3. Scheduled LSP creation . . . . . . . . . . . . . . . . . 9
4.3.1. The PCReq message and PCRpt Message . . . . . . . . . 10
4.3.2. The PCRep Message . . . . . . . . . . . . . . . . . . 11
4.3.3. The PCUpd Message . . . . . . . . . . . . . . . . . . 11
4.3.4. LSP Object . . . . . . . . . . . . . . . . . . . . . 12
4.4. Scheduled LSP Updates . . . . . . . . . . . . . . . . . . 15
4.5. Scheduled LSP activation and deletion . . . . . . . . . . 15
5. Security Considerations . . . . . . . . . . . . . . . . . . . 16
6. Manageability Consideration . . . . . . . . . . . . . . . . . 16
6.1. Control of Function and Policy . . . . . . . . . . . . . 16
6.2. Information and Data Models . . . . . . . . . . . . . . . 16
6.3. Liveness Detection and Monitoring . . . . . . . . . . . . 16
6.4. Verify Correct Operations . . . . . . . . . . . . . . . . 16
6.5. Requirements On Other Protocols . . . . . . . . . . . . . 16
6.6. Impact On Network Operations . . . . . . . . . . . . . . 16
7. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 16
7.1. PCEP TLV Type Indicators . . . . . . . . . . . . . . . . 17
7.2. LSP-SCHEDULING-CAPABLITY . . . . . . . . . . . . . . . . 17
8. Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . 17
9. References . . . . . . . . . . . . . . . . . . . . . . . . . 17
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