< draft-ietf-pce-association-policy-08.txt   draft-ietf-pce-association-policy-09.txt >
PCE Working Group S. Litkowski PCE Working Group S. Litkowski
Internet-Draft S. Sivabalan Internet-Draft S. Sivabalan
Intended status: Standards Track Cisco Systems, Inc. Intended status: Standards Track Cisco Systems, Inc.
Expires: September 10, 2020 J. Tantsura Expires: October 22, 2020 J. Tantsura
Apstra, Inc. Apstra, Inc.
J. Hardwick J. Hardwick
Metaswitch Networks Metaswitch Networks
M. Negi M. Negi
C. Li C. Li
Huawei Technologies Huawei Technologies
March 9, 2020 April 20, 2020
Path Computation Element communication Protocol (PCEP) extension for Path Computation Element communication Protocol (PCEP) extension for
associating Policies and Label Switched Paths (LSPs) associating Policies and Label Switched Paths (LSPs)
draft-ietf-pce-association-policy-08 draft-ietf-pce-association-policy-09
Abstract Abstract
This document introduces a simple mechanism to associate policies to This document introduces a simple mechanism to associate policies to
a group of Label Switched Paths (LSPs) via an extension to the Path a group of Label Switched Paths (LSPs) via an extension to the Path
Computation Element (PCE) Communication Protocol (PCEP). Computation Element (PCE) Communication Protocol (PCEP).
Status of This Memo Status of This Memo
This Internet-Draft is submitted in full conformance with the This Internet-Draft is submitted in full conformance with the
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Internet-Drafts are working documents of the Internet Engineering Internet-Drafts are working documents of the Internet Engineering
Task Force (IETF). Note that other groups may also distribute Task Force (IETF). Note that other groups may also distribute
working documents as Internet-Drafts. The list of current Internet- working documents as Internet-Drafts. The list of current Internet-
Drafts is at https://datatracker.ietf.org/drafts/current/. Drafts is at https://datatracker.ietf.org/drafts/current/.
Internet-Drafts are draft documents valid for a maximum of six months Internet-Drafts are draft documents valid for a maximum of six months
and may be updated, replaced, or obsoleted by other documents at any and may be updated, replaced, or obsoleted by other documents at any
time. It is inappropriate to use Internet-Drafts as reference time. It is inappropriate to use Internet-Drafts as reference
material or to cite them other than as "work in progress." material or to cite them other than as "work in progress."
This Internet-Draft will expire on September 10, 2020. This Internet-Draft will expire on October 22, 2020.
Copyright Notice Copyright Notice
Copyright (c) 2020 IETF Trust and the persons identified as the Copyright (c) 2020 IETF Trust and the persons identified as the
document authors. All rights reserved. document authors. All rights reserved.
This document is subject to BCP 78 and the IETF Trust's Legal This document is subject to BCP 78 and the IETF Trust's Legal
Provisions Relating to IETF Documents Provisions Relating to IETF Documents
(https://trustee.ietf.org/license-info) in effect on the date of (https://trustee.ietf.org/license-info) in effect on the date of
publication of this document. Please review these documents publication of this document. Please review these documents
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1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2
1.1. Requirements Language . . . . . . . . . . . . . . . . . . 3 1.1. Requirements Language . . . . . . . . . . . . . . . . . . 3
2. Terminology . . . . . . . . . . . . . . . . . . . . . . . . . 3 2. Terminology . . . . . . . . . . . . . . . . . . . . . . . . . 3
3. Motivation . . . . . . . . . . . . . . . . . . . . . . . . . 4 3. Motivation . . . . . . . . . . . . . . . . . . . . . . . . . 4
3.1. Policy based Constraints . . . . . . . . . . . . . . . . 5 3.1. Policy based Constraints . . . . . . . . . . . . . . . . 5
4. Overview . . . . . . . . . . . . . . . . . . . . . . . . . . 6 4. Overview . . . . . . . . . . . . . . . . . . . . . . . . . . 6
5. Policy Association Group . . . . . . . . . . . . . . . . . . 7 5. Policy Association Group . . . . . . . . . . . . . . . . . . 7
5.1. Policy Parameters TLV . . . . . . . . . . . . . . . . . . 7 5.1. Policy Parameters TLV . . . . . . . . . . . . . . . . . . 7
6. Implementation Status . . . . . . . . . . . . . . . . . . . . 8 6. Implementation Status . . . . . . . . . . . . . . . . . . . . 8
6.1. Cisco's Implementation . . . . . . . . . . . . . . . . . 9
7. Security Considerations . . . . . . . . . . . . . . . . . . . 9 7. Security Considerations . . . . . . . . . . . . . . . . . . . 9
8. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 9 8. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 10
8.1. Association object Type Indicators . . . . . . . . . . . 9 8.1. Association object Type Indicators . . . . . . . . . . . 10
8.2. PCEP TLV Type Indicators . . . . . . . . . . . . . . . . 10 8.2. PCEP TLV Type Indicators . . . . . . . . . . . . . . . . 10
9. Manageability Considerations . . . . . . . . . . . . . . . . 10 9. Manageability Considerations . . . . . . . . . . . . . . . . 10
9.1. Control of Function and Policy . . . . . . . . . . . . . 10 9.1. Control of Function and Policy . . . . . . . . . . . . . 10
9.2. Information and Data Models . . . . . . . . . . . . . . . 10 9.2. Information and Data Models . . . . . . . . . . . . . . . 10
9.3. Liveness Detection and Monitoring . . . . . . . . . . . . 10 9.3. Liveness Detection and Monitoring . . . . . . . . . . . . 11
9.4. Verify Correct Operations . . . . . . . . . . . . . . . . 10 9.4. Verify Correct Operations . . . . . . . . . . . . . . . . 11
9.5. Requirements on Other Protocols . . . . . . . . . . . . . 11 9.5. Requirements on Other Protocols . . . . . . . . . . . . . 11
9.6. Impact on Network Operations . . . . . . . . . . . . . . 11 9.6. Impact on Network Operations . . . . . . . . . . . . . . 11
10. Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . 11 10. Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . 11
11. References . . . . . . . . . . . . . . . . . . . . . . . . . 11 11. References . . . . . . . . . . . . . . . . . . . . . . . . . 11
11.1. Normative References . . . . . . . . . . . . . . . . . . 11 11.1. Normative References . . . . . . . . . . . . . . . . . . 11
11.2. Informative References . . . . . . . . . . . . . . . . . 12 11.2. Informative References . . . . . . . . . . . . . . . . . 12
Appendix A. Contributor Addresses . . . . . . . . . . . . . . . 14 Appendix A. Contributor Addresses . . . . . . . . . . . . . . . 14
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 14 Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 14
1. Introduction 1. Introduction
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features. Readers are advised to note that other implementations may features. Readers are advised to note that other implementations may
exist. exist.
According to [RFC7942], "this will allow reviewers and working groups According to [RFC7942], "this will allow reviewers and working groups
to assign due consideration to documents that have the benefit of to assign due consideration to documents that have the benefit of
running code, which may serve as evidence of valuable experimentation running code, which may serve as evidence of valuable experimentation
and feedback that have made the implemented protocols more mature. and feedback that have made the implemented protocols more mature.
It is up to the individual working groups to use this information as It is up to the individual working groups to use this information as
they see fit". they see fit".
Currently there are no confirmed implementations, though vendors have 6.1. Cisco's Implementation
shown interest in making this as part of their roadmap. More details
to be added in a later revision. o Organization: Cisco Systems, Inc.
o Implementation: IOS-XR PCE and PCC.
o Description: The PCEP extension specified in this document is used
to convey traffic steering policies.
o Maturity Level: In shipping product.
o Coverage: Partial.
o Contact: msiva@cisco.com.
7. Security Considerations 7. Security Considerations
This document defines one new type for association, which do not add This document defines one new type for association, which do not add
any new security concerns beyond those discussed in [RFC5440], any new security concerns beyond those discussed in [RFC5440],
[RFC8231] and [RFC8697] in itself. [RFC8231] and [RFC8697] in itself.
Extra care needs to be taken by the implementation with respect to Extra care needs to be taken by the implementation with respect to
POLICY-PARAMETERS-TLV while decoding, verifying and applying these POLICY-PARAMETERS-TLV while decoding, verifying and applying these
policy variables. This TLV parsing could be exploited by an policy variables. This TLV parsing could be exploited by an
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EMail: dhruv.ietf@gmail.com EMail: dhruv.ietf@gmail.com
Qin Wu Qin Wu
Huawei Technologies Huawei Technologies
101 Software Avenue, Yuhua District 101 Software Avenue, Yuhua District
Nanjing, Jiangsu 210012 Nanjing, Jiangsu 210012
China China
EMail: sunseawq@huawei.com EMail: sunseawq@huawei.com
Clarence Filsfils
Cisco Systems, Inc.
Pegasus Parc
De kleetlaan 6a, DIEGEM BRABANT 1831
BELGIUM
Email: cfilsfil@cisco.com
Xian Zhang Xian Zhang
Huawei Technologies Huawei Technologies
Bantian, Longgang District Bantian, Longgang District
Shenzhen 518129 Shenzhen 518129
P.R.China P.R.China
EMail: zhang.xian@huawei.com EMail: zhang.xian@huawei.com
Udayasree Palle Udayasree Palle
EMail: udayasreereddy@gmail.com EMail: udayasreereddy@gmail.com
Authors' Addresses Authors' Addresses
Stephane Litkowski Stephane Litkowski
Cisco Systems, Inc. Cisco Systems, Inc.
11 Rue Camille Desmoulins
Issy-les-Moulineaux 92130
France
EMail: slitkows.ietf@gmail.com EMail: slitkows@cisco.com
Siva Sivabalan Siva Sivabalan
Cisco Systems, Inc. Cisco Systems, Inc.
2000 Innovation Drive 2000 Innovation Drive
Kanata, Ontario K2K 3E8 Kanata, Ontario K2K 3E8
Canada Canada
EMail: msiva@cisco.com EMail: msiva@cisco.com
Jeff Tantsura Jeff Tantsura
Apstra, Inc. Apstra, Inc.
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