Re: [CCAMP] I-D Action: draft-ietf-ccamp-rwa-wson-encode-16.txt

[Dieter Beller <[e-mail]>]

Hi Lou, Greg , and CCAMPers,

defining a mapping table (encoding) as proposed in the mentioned draft below seems
to be a reasonable way how to move forward. I do have some reservations when
dealing with strings in protocols.


Thanks,
Dieter

On 04.09.2012 22:16, Lou Berger wrote:

Greg,
	Why not start with the concrete proposal that's already on the table,
i.e., the text in
http://tools.ietf.org/html/draft-martinelli-wson-interface-class-03" rel="nofollow">http://tools.ietf.org/html/draft-martinelli-wson-interface-class-03?
Frankly, I'm not sure why that text wasn't incorporated in the first
place and figured I missed something -- which is why I sent my earlier mail.

Lou

On 9/4/2012 3:58 PM, Greg Bernstein wrote:

Hi Lou and CCAMPers.  I haven't heard anything on this issue in two 
weeks.  One simple way out of this would be to just use a variable 
length field for the OIC using the ITU-T application string rather than 
a fixed 64 bit field.
If the ITU-T comes up with another specific encoding (64 bit or 
otherwise) in the future we can make sure to have a place holder. 
However, currently the ITU-T only defines application strings for this 
purpose.

If I don't hear any other suggestions in two weeks, I'll make the change 
to incorporate variable length strings and keep place holders for 
defining fixed length fields.  Then we can move this and related WSON 
documents into last call.

Best Regards
Greg B.

On 8/20/2012 11:00 AM, Greg Bernstein wrote:

Optical Interface Class draft authors can you respond to Lou/List.  
Let me know if we need to update the text.  We are trying to get this 
into last call.
Best Regards
Greg
On 8/20/2012 10:28 AM, Lou Berger wrote:

Authors,

I see that the draft says:
      In case of ITU Application Code, there should be a mapping between
      the string defining the application code and the 64 bits number
      implementing the optical interface class.

Where is this mapping defined?  Doesn't it have to be either in this
draft or a normative reference?

Thanks,
Lou

On 8/16/2012 7:14 PM, [e-mail] wrote:

A New Internet-Draft is available from the on-line Internet-Drafts 
directories.
  This draft is a work item of the Common Control and Measurement 
Plane Working Group of the IETF.

    Title           : Routing and Wavelength Assignment Information 
Encoding for Wavelength Switched Optical Networks
    Author(s)       : Greg M. Bernstein
                           Young Lee
                           Dan Li
                           Wataru Imajuku
    Filename        : draft-ietf-ccamp-rwa-wson-encode-16.txt
    Pages           : 33
    Date            : 2012-08-16

Abstract:
    A wavelength switched optical network (WSON) requires that certain
    key information elements are made available to facilitate path
    computation and the establishment of label switching paths (LSPs).
    The information model described in "Routing and Wavelength
    Assignment Information for Wavelength Switched Optical Networks"
    shows what information is required at specific points in the WSON.
    Part of the WSON information model contains aspects that may be of
    general applicability to other technologies, while other parts are
    fairly specific to WSONs.

    This document provides efficient, protocol-agnostic encodings for
    the WSON specific information elements. It is intended that
    protocol-specific documents will reference this memo to describe 
how
    information is carried for specific uses. Such encodings can be 
used
    to extend GMPLS signaling and routing protocols. In addition these
    encodings could be used by other mechanisms to convey this same
    information to a path computation element (PCE).





The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-ccamp-rwa-wson-encode" rel="nofollow">https://datatracker.ietf.org/doc/draft-ietf-ccamp-rwa-wson-encode

There's also a htmlized version available at:
http://tools.ietf.org/html/draft-ietf-ccamp-rwa-wson-encode-16" rel="nofollow">http://tools.ietf.org/html/draft-ietf-ccamp-rwa-wson-encode-16

A diff from the previous version is available at:
http://www.ietf.org/rfcdiff?url2=draft-ietf-ccamp-rwa-wson-encode-16" rel="nofollow">http://www.ietf.org/rfcdiff?url2=draft-ietf-ccamp-rwa-wson-encode-16


Internet-Drafts are also available by anonymous FTP at:
ftp://ftp.ietf.org/internet-drafts/" rel="nofollow">ftp://ftp.ietf.org/internet-drafts/

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--

DIETER BELLER

ALCATEL-LUCENT DEUTSCHLAND AG
PROJECT MANAGER ASON/GMPLS CONTROL PLANE
NETWORKS GROUP, OPTICS DIVISION
TERRESTRIAL OPTICS UNIT

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