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RE: AH and flow label


This discussion is not really in line with existing 
specs. We already have a spec that says the flow label
is immutable e2e. Revisiting this is a different story.
We're talking about existing specs.


-----Original Message-----
From: Christian Huitema [mailto:huitema@windows.microsoft.com]
Sent: Sunday, September 12, 2004 12:30 PM
To: Francis Dupont; Soliman, Hesham
Cc: Brian Haberman; ipv6@ietf.org
Subject: RE: AH and flow label 

The suggestions of making the flow label immutable and protecting it by
AH look like bad ideas. The 20 bits in the "flow label" are the only
reserved bits in the header. These bits should be available for future
innovation. If we make them strictly immutable, how will we able to
create something like ECN in the future?

-- Christian Huitema

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