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Re: [manet] Default LQ and example MPR
The MAY to SHOULD thing is a tricky one. Personally I would
agree that you should (lower case should). But back when this
was put together, there were some opinions not wanting to use
link quality, and the MAY, together with other wordings (noting
that if link quality never changes you don't need to record it)
was a compromise that kept consensus. I'd rather not re-open
that, despite personally being happy with SHOULD.
There is also an argument that this is not an interoperability
issue, it's entirely local to a router and is a quality of
implementation issue, and those don't need to be stressed as
strongly.
--
Christopher Dearlove
Technology Leader, Communications Group
Networks, Security and Information Systems Department
BAE Systems Advanced Technology Centre
West Hanningfield Road, Great Baddow, Chelmsford, CM2 8HN, UK
Tel: +44 1245 242194 Fax: +44 1245 242124
BAE Systems (Operations) Limited
Registered Office: Warwick House, PO Box 87,
Farnborough Aerospace Centre, Farnborough, Hants, GU14 6YU, UK
Registered in England & Wales No: 1996687
-----Original Message-----
From: Teco Boot [mailto:teco at inf-net.nl]
Sent: 16 November 2009 21:06
To: Dearlove, Christopher (UK)
Cc: manet at ietf.org
Subject: RE: [manet] Default LQ and example MPR
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Keep this in mind if you answer this message.
>Default values of 0.8 and 0.3 are meaningless if you
>haven't (and we neither can nor want to) define the
>meaning of the scale. That's why we specifically
>changed defaults from OLSRv1.
The LQ parameters are dimensionless. The OLSRv1 defaults are not
that bad.
>> A router SHOULD update link quality based on any information
>> available
More important: the change from MAY to SHOULD. My experience is
that having LQ is crucial on those link types that are our primary
concern.
Teco.
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