draft-ietf-ccamp-general-constraint-encode-14.txt   draft-ietf-ccamp-general-constraint-encode-15.txt 
Network Working Group G. Bernstein Network Working Group G. Bernstein
Internet Draft Grotto Networking Internet Draft Grotto Networking
Intended status: Standards Track Y. Lee Intended status: Standards Track Y. Lee
Expires: August 2014 D. Li Expires: August 2014 D. Li
Huawei Huawei
W. Imajuku W. Imajuku
NTT NTT
February 5, 2014 August 7, 2014
General Network Element Constraint Encoding for GMPLS Controlled General Network Element Constraint Encoding for GMPLS Controlled
Networks Networks
draft-ietf-ccamp-general-constraint-encode-14.txt draft-ietf-ccamp-general-constraint-encode-15.txt
Status of this Memo Status of this Memo
This Internet-Draft is submitted to IETF in full conformance with This Internet-Draft is submitted to IETF in full conformance with
the provisions of BCP 78 and BCP 79. the provisions of BCP 78 and BCP 79.
Internet-Drafts are working documents of the Internet Engineering Internet-Drafts are working documents of the Internet Engineering
Task Force (IETF), its areas, and its working groups. Note that Task Force (IETF), its areas, and its working groups. Note that
other groups may also distribute working documents as Internet- other groups may also distribute working documents as Internet-
Drafts. Drafts.
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months and may be updated, replaced, or obsoleted by other documents months and may be updated, replaced, or obsoleted by other documents
at any time. It is inappropriate to use Internet-Drafts as at any time. It is inappropriate to use Internet-Drafts as
reference material or to cite them other than as "work in progress." reference material or to cite them other than as "work in progress."
The list of current Internet-Drafts can be accessed at The list of current Internet-Drafts can be accessed at
http://www.ietf.org/ietf/1id-abstracts.txt http://www.ietf.org/ietf/1id-abstracts.txt
The list of Internet-Draft Shadow Directories can be accessed at The list of Internet-Draft Shadow Directories can be accessed at
http://www.ietf.org/shadow.html http://www.ietf.org/shadow.html
This Internet-Draft will expire on August 5, 2014. This Internet-Draft will expire on February 7, 2015.
Copyright Notice Copyright Notice
Copyright (c) 2014 IETF Trust and the persons identified as the Copyright (c) 2014 IETF Trust and the persons identified as the
document authors. All rights reserved. document authors. All rights reserved.
Internet-Draft General Network Element Constraint Encoding February Internet-Draft General Network Element Constraint Encoding February
2014 2014
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
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Conventions used in this document Conventions used in this document
The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
"SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
document are to be interpreted as described in RFC-2119 [RFC2119]. document are to be interpreted as described in RFC-2119 [RFC2119].
Table of Contents Table of Contents
1. Introduction...................................................3 1. Introduction...................................................3
1.1. Node Switching Asymmetry Constraints......................4 1.1. Node Switching Asymmetry Constraints......................3
1.2. Non-Local Label Assignment Constraints....................4 1.2. Non-Local Label Assignment Constraints....................4
2. Encoding.......................................................5 2. Encoding.......................................................5
2.1. Connectivity Matrix Field.................................5 2.1. Connectivity Matrix Field.................................5
2.2. Port Label Restriction Field..............................7 2.2. Port Label Restriction Field..............................7
2.2.1. SIMPLE_LABEL.........................................8 2.2.1. SIMPLE_LAB...........................................8
2.2.2. CHANNEL_COUNT........................................8 2.2.2. CHANNEL_COUNT........................................8
2.2.3. LABEL_RANGE1.........................................9 2.2.3. LABEL_RANGE1.........................................9
2.2.4. SIMPLE_LABEL & CHANNEL_COUNT.........................9 2.2.4. SIMPLE_LABEL & CHANNEL_COUNT.........................9
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2014 2014
2.2.5. Link Label Exclusivity..............................10 2.2.5. Link Label Exclusivity..............................10
2.3. Link Set Field...........................................10 2.3. Link Set Field...........................................10
2.4. Available Labels Field...................................12 2.4. Available Labels Field...................................12
2.5. Shared Backup Labels Field...............................13 2.5. Shared Backup Labels Field...............................13
2.6. Label Set Field..........................................14 2.6. Label Set Field..........................................13
2.6.1. Inclusive/Exclusive Label Lists.....................15 2.6.1. Inclusive/Exclusive Label Lists.....................14
2.6.2. Inclusive/Exclusive Label Ranges....................15 2.6.2. Inclusive/Exclusive Label Ranges....................15
2.6.3. Bitmap Label Set....................................16 2.6.3. Bitmap Label Set....................................16
3. Security Considerations.......................................17 3. Security Considerations.......................................16
4. IANA Considerations...........................................17 4. IANA Considerations...........................................17
5. Acknowledgments...............................................17 5. Acknowledgments...............................................17
APPENDIX A: Encoding Examples....................................18 APPENDIX A: Encoding Examples....................................18
A.1. Link Set Field...........................................18 A.1. Link Set Field...........................................18
A.2. Label Set Field..........................................18 A.2. Label Set Field..........................................18
A.3. Connectivity Matrix......................................19 A.3. Connectivity Matrix......................................19
A.4. Connectivity Matrix with Bi-directional Symmetry.........22 A.4. Connectivity Matrix with Bi-directional Symmetry.........22
A.5. Priority Flags in Available/Shared Backup Labels.........24 A.5. Priority Flags in Available/Shared Backup Labels.........24
6. References....................................................26 6. References....................................................26
6.1. Normative References.....................................26 6.1. Normative References.....................................26
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context of the advertising node. context of the advertising node.
1 -- Local Interface IPv4 Address 1 -- Local Interface IPv4 Address
2 -- Local Interface IPv6 Address 2 -- Local Interface IPv6 Address
Indicates that the links in the Link Set are identified by Local Indicates that the links in the Link Set are identified by Local
Interface IP Address. All Local Interface IP Address are supplied in Interface IP Address. All Local Interface IP Address are supplied in
the context of the advertising node. the context of the advertising node.
Others TBD. Others -- Reserved for future use.
Note that all link identifiers in the same list must be of the same Note that all link identifiers in the same list must be of the same
type. type.
Length: 16 bits Length: 16 bits
This field indicates the total length in bytes of the Link Set field. This field indicates the total length in bytes of the Link Set field.
Link Identifier: length is dependent on the link format Link Identifier: length is dependent on the link format
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Output | | Unidirectional ROADM | | Input Output | | Unidirectional ROADM | | Input
-----------------+ | | +-------------- -----------------+ | | +--------------
<=====================| |===================< <=====================| |===================<
-----------------+ +----------------------+ +-------------- -----------------+ +----------------------+ +--------------
| | | |
Port #1 | | Port #2 Port #1 | | Port #2
(West Line Side) | |(East Line Side) (West Line Side) | |(East Line Side)
-----------------+ +----------------------+ +-------------- -----------------+ +----------------------+ +--------------
>=====================| |===================> >=====================| |===================>
-----------------+ | Unidirectional ROADM | +-------------- -----------------+ | Unidirectional ROADM | +--------------
Input | | | | Output Input | | | | Output
| | _ | | | | _ | |
| +----------------------+ | | +----------------------+ |
+-----| |||.|--------| |||.|------+ +-----| |||.|--------| |||.|------+
| |||.| | |||.| | |||.| | |||.|
vvvvv ^^^^^ vvvvv ^^^^^
Ports #3-#42 Ports #43-82 Ports #3-42 Ports #43-82
Output dropped from Input added to Output dropped from Input added to
West Line Input East Line Output West Line Input East Line Output
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0 1 2 3 0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Conn = 1 | MatrixID | Reserved | | Conn = 1 | MatrixID | Reserved |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Add/Drops #3-42 to Line side #1 Add/Drops #3-42 to Line side #1
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