GMPLS OSPF Enhancement for Signal and Network Element Compatibility for Wavelength Switched Optical Networks
RFC 7688
| Document | Type | RFC - Proposed Standard (November 2015; No errata) | |
|---|---|---|---|
| Authors | Young Lee , Greg Bernstein | ||
| Last updated | 2018-12-20 | ||
| Replaces | draft-lee-ccamp-wson-signal-compatibility-ospf | ||
| Stream | Internent Engineering Task Force (IETF) | ||
| Formats | plain text html pdf htmlized (tools) htmlized bibtex | ||
| Reviews | |||
| Stream | WG state | Submitted to IESG for Publication | |
| Document shepherd | Lou Berger | ||
| Shepherd write-up | Show (last changed 2014-09-30) | ||
| IESG | IESG state | RFC 7688 (Proposed Standard) | |
| Action Holders |
(None)
|
||
| Consensus Boilerplate | Yes | ||
| Telechat date | |||
| Responsible AD | Deborah Brungard | ||
| Send notices to | (None) | ||
| IANA | IANA review state | Version Changed - Review Needed | |
| IANA action state | RFC-Ed-Ack | ||
Internet Engineering Task Force (IETF) Y. Lee, Ed.
Request for Comments: 7688 Huawei
Category: Standards Track G. Bernstein, Ed.
ISSN: 2070-1721 Grotto Networking
November 2015
GMPLS OSPF Enhancement for Signal and Network Element Compatibility
for Wavelength Switched Optical Networks
Abstract
This document provides Generalized Multiprotocol Label Switching
(GMPLS) Open Shortest Path First (OSPF) routing enhancements to
support signal compatibility constraints associated with Wavelength
Switched Optical Network (WSON) elements. These routing enhancements
are applicable in common optical or hybrid electro-optical networks
where not all the optical signals in the network are compatible with
all network elements participating in the network.
This compatibility constraint model is applicable to common optical
or hybrid electro-optical systems such as optical-electronic-optical
(OEO) switches, regenerators, and wavelength converters, since such
systems can be limited to processing only certain types of WSON
signals.
Status of This Memo
This is an Internet Standards Track document.
This document is a product of the Internet Engineering Task Force
(IETF). It represents the consensus of the IETF community. It has
received public review and has been approved for publication by the
Internet Engineering Steering Group (IESG). Further information on
Internet Standards is available in Section 2 of RFC 5741.
Information about the current status of this document, any errata,
and how to provide feedback on it may be obtained at
http://www.rfc-editor.org/info/rfc7688.
Lee & Bernstein Standards Track [Page 1]
RFC 7688 OSPF Enhancement for WSON November 2015
Copyright Notice
Copyright (c) 2015 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
carefully, as they describe your rights and restrictions with respect
to this document. Code Components extracted from this document must
include Simplified BSD License text as described in Section 4.e of
the Trust Legal Provisions and are provided without warranty as
described in the Simplified BSD License.
Table of Contents
1. Introduction ....................................................3
1.1. Conventions Used in This Document ..........................3
2. The Optical Node Property TLV ...................................3
2.1. Resource Block Information .................................4
2.2. Resource Accessibility .....................................5
2.3. Resource Wavelength Constraints ............................5
2.4. Resource Block Pool State ..................................5
2.5. Resource Block Shared Access Wavelength Availability .......5
3. Interface Switching Capability Descriptor (ISCD) Format
Extensions ......................................................5
3.1. Switching Capability Specific Information (SCSI) ...........6
4. WSON-Specific Scalability and Timeliness ........................7
5. Security Considerations .........................................8
6. IANA Considerations .............................................8
6.1. Optical Node Property TLV ..................................8
6.1.1. Optical Node Property Sub-TLV .......................8
6.2. WSON-LSC Switching Type TLV ................................9
6.2.1. WSON-LSC SCSI Sub-TLVs ..............................9
7. References .....................................................10
7.1. Normative References ......................................10
7.2. Informative References ....................................10
Authors' Addresses ................................................12
Lee & Bernstein Standards Track [Page 2]
RFC 7688 OSPF Enhancement for WSON November 2015
1. Introduction
The documents [RFC6163], [RFC7446], and [RFC7581] explain how to
extend the Wavelength Switched Optical Network (WSON) control plane
to support both multiple WSON signal types and common hybrid electro-
optical systems as well hybrid systems containing optical switching
and electro-optical resources. In WSON, not all the optical signals
in the network are compatible with all network elements participating
in the network. Therefore, signal compatibility is an important
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