New draft: draft-zhang-ccamp-rwa-wson-routing-ospf-00

[Fatai Zhang <[e-mail]>]

Dear CCAMPers,

We just posted a new I-D: draft-zhang-ccamp-rwa-wson-routing-ospf-00.txt.

Following the work on the RWA problem in the existing CCAMP drafts, and working with the protocol-independent encodings defined in   draft-ietf-ccamp-rwa-wson-encode, we have started work on OSPF extensions.  This work is at an early stage and we expect to revise the document over the next months. 

Any comments are welcome.

The following is the abstract of this new I-D, please check out the attachment for details.


=========================================================================
Abstract 

Wavelength switched optical networks (WSONs) are based on Wavelength Division Multiplexing (WDM) in which user traffic is carried by data channels of different optical wavelengths. In traditional WDM Networks, each wavelength path is statically configured. With the  deployment of Reconfigurable Optical Add-Drop Multiplexers (ROADMs), photonic cross-connects (PXCs), and tunable laser, WSONs have become more dynamic, and operators can flexibly set up wavelength paths to carry user traffic.

In WSONs where there are no or a limited number of switches capable of wavelength conversion paths must be set up subject to the wavelength continuity" constraint. This leads to a path computation problem known as routing and wavelength assignment (RWA). In order to 
perform such computations, it is necessary to collect information about the available wavelengths within the network. 

This document describes OSPF routing protocols extensions to support Wavelength Switched Optical Networks (WSON) under the control of 
Generalized MPLS (GMPLS). 



Thanks
 
Fatai 
 
Advanced Technology Department
Wireline Networking Business Unit
Huawei Technologies Co., LTD.
Huawei Base, Bantian, Longgang,
Shenzhen 518129 P.R.China
Tel: [phone]
Fax: [phone]
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  Sent: Monday, March 02, 2009 3:47 PM
  Subject: New Version Notification for draft-zhang-ccamp-rwa-wson-routing-ospf-00



  A new version of I-D, draft-zhang-ccamp-rwa-wson-routing-ospf-00.txt has been successfuly submitted by Fatai Zhang and posted to the IETF repository.

  Filename: draft-zhang-ccamp-rwa-wson-routing-ospf
  Revision: 00
  Title: OSPF Extensions in Support of Routing and Wavelength Assignment (RWA) in Wavelength Switched Optical Networks (WSONs)
  Creation_date: 2009-03-02
  WG ID: Independent Submission
  Number_of_pages: 17

  Abstract:
  Wavelength switched optical networks (WSONs) are based on Wavelength 
  Division Multiplexing (WDM) in which user traffic is carried by data 
  channels of different optical wavelengths. In traditional WDM 
  Networks, each wavelength path is statically configured. With the 
   
   
   deployment of Reconfigurable Optical Add-Drop Multiplexers (ROADMs), 
  photonic cross-connects (PXCs), and tunable laser, WSONs have become 
  more dynamic, and operators can flexibly set up wavelength paths to 
  carry user traffic.


  In WSONs where there are no or a limited number of switches capable 
  of wavelength conversion paths must be set up subject to the 
  "wavelength continuity" constraint. This leads to a path computation 
  problem known as routing and wavelength assignment (RWA). In order to 
  perform such computations, it is necessary to collect information 
  about the available wavelengths within the network. 

  This document describes OSPF routing protocols extensions to support 
  Wavelength Switched Optical Networks (WSON) under the control of 
  Generalized MPLS (GMPLS). 

  Conventions used in this document 

  The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", 
  "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this 
  document are to be interpreted as described in RFC-2119 [RFC2119].
                                                                                    


  The IETF Secretariat.