--- 1/draft-ietf-pce-wson-rwa-ext-15.txt 2019-03-01 08:13:19.929882832 -0800 +++ 2/draft-ietf-pce-wson-rwa-ext-16.txt 2019-03-01 08:13:19.985884184 -0800 @@ -1,21 +1,21 @@ Network Working Group Y. Lee, Ed. Internet Draft Huawei Technologies Intended status: Standard Track R. Casellas, Ed. -Expires: August 21, 2019 CTTC +Expires: September 1, 2019 CTTC - February 22, 2019 + March 1, 2019 PCEP Extension for WSON Routing and Wavelength Assignment - draft-ietf-pce-wson-rwa-ext-15 + draft-ietf-pce-wson-rwa-ext-16 Abstract This document provides the Path Computation Element communication Protocol (PCEP) extensions for the support of Routing and Wavelength Assignment (RWA) in Wavelength Switched Optical Networks (WSON). Path provisioning in WSONs requires a routing and wavelength assignment (RWA) process. From a path computation perspective, wavelength assignment is the process of determining which wavelength can be used on each hop of a path and forms an additional routing @@ -34,21 +34,21 @@ Internet-Drafts are draft documents valid for a maximum of six months and may be updated, replaced, or obsoleted by other documents at any time. It is inappropriate to use Internet-Drafts as reference material or to cite them other than as "work in progress." The list of current Internet-Drafts can be accessed at http://www.ietf.org/ietf/1id-abstracts.txt The list of Internet-Draft Shadow Directories can be accessed at http://www.ietf.org/shadow.html. - This Internet-Draft will expire on August 21, 2019. + This Internet-Draft will expire on September 1, 2019. Copyright Notice Copyright (c) 2019 IETF Trust and the persons identified as the document authors. All rights reserved. This document is subject to BCP 78 and the IETF Trust's Legal Provisions Relating to IETF Documents (http://trustee.ietf.org/license-info) in effect on the date of publication of this document. Please review these documents @@ -86,27 +86,27 @@ 7. Security Considerations.......................................23 8. IANA Considerations...........................................23 8.1. New PCEP Object: Wavelength Assignment Object............23 8.2. WA Object Flag Field.....................................24 8.3. New PCEP TLV: Wavelength Selection TLV...................24 8.4. New PCEP TLV: Wavelength Restriction Constraint TLV......24 8.5. Wavelength Restriction Constraint TLV Action Values......25 8.6. New PCEP TLV: Wavelength Allocation TLV..................25 8.7. Wavelength Allocation TLV Flag Field.....................26 8.8. New PCEP TLV: Optical Interface Class List TLV...........26 - 8.9. New PCEP TLV: Client Signal TLV..........................26 + 8.9. New PCEP TLV: Client Signal TLV..........................27 8.10. New No-Path Reasons.....................................27 8.11. New Error-Types and Error-Values........................27 8.12. New Subobjects for the Exclude Route Object.............28 8.13. New Subobjects for the Include Route Object.............28 8.14. Request for Updated Note for LMP TE Link Object Class Type - ..............................................................28 + ..............................................................29 9. Acknowledgments...............................................29 10. References...................................................29 10.1. Normative References....................................29 10.2. Informative References..................................30 11. Contributors.................................................32 Authors' Addresses...............................................33 1. Terminology This document uses the terminology defined in [RFC4655], and @@ -959,21 +959,23 @@ o Defining RFC The following values are defined in this document: One bit is defined for the WA Object flag in this document: Codespace of the Flag field (WA Object) Bit Description Reference ------------------------------------------------- - 15 explicit label control [This.I-D] + 0-14 Unassigned [This.I-D] + + 15 Explicit Label Control [This.I-D] 8.3. New PCEP TLV: Wavelength Selection TLV As described in Sections 4.2, a new PCEP TLV is defined to indicate wavelength selection constraints. IANA is to allocate this new TLV from the "PCEP TLV Type Indicators" subregistry (http://www.iana.org/assignments/pcep/pcep.xhtml#pcep-tlv-type- indicators). Value Description Reference @@ -1038,20 +1040,22 @@ o Defining RFC One bit is defined for the Wavelength Allocation flag in this - document: Codespace of the Flag field (Wavelength Allocation TLV) Bit Description Reference ------------------------------------------------- + 0-14 Unassigned [This.I-D] + 15 Wavelength Allocation Mode [This.I-D] 8.8. New PCEP TLV: Optical Interface Class List TLV As described in Section 4.4, a new PCEP TLV is defined to indicate the optical interface class list. IANA is to allocate this new TLV from the "PCEP TLV Type Indicators" subregistry (http://www.iana.org/assignments/pcep/pcep.xhtml#pcep-tlv-type- indicators). @@ -1094,29 +1098,33 @@ As described in Section 5.2, new PCEP error codes are defined for WSON RWA errors. IANA is to allocate from the ""PCEP-ERROR Object Error Types and Values" sub-registry (http://www.iana.org/assignments/pcep/pcep.xhtml#pcep-error-object). Error- Meaning Error-Value Reference Type --------------------------------------------------------------- - TBD8 WSON RWA Error 1: Insufficient [This.I-D] + TBD8 WSON RWA Error 0: Unassigned [This.I-D] + + 1: Insufficient [This.I-D] Memory 2: RWA computation [This.I-D] Not supported 3: Syntactical [This.I-D] Encoding error + 4-255: Unassigned [This.I-D] + 8.12. New Subobjects for the Exclude Route Object As described in Section 4.4.1, the "PCEP Parameters" registry contains a subregistry "PCEP Objects" with an entry for the Exclude Route Object (XRO). IANA is requested to add further subobjects that can be carried in the XRO as follows: Subobject Type Reference ----------------------------------------------------------