RE: [rohc] draft-ace-robust-hc-01.txt

[Mikael Degermark <micke@cs.arizona.edu>]

At 10:18 AM 3/30/00 -0600, zhigang.liu@nokia.com wrote:
>> rfc2507 defines how compress the AH. All fields of the AH 
>> except for the actual 
>> authentication data can be compressed away. 
>
>Yes, that's true. One thing I'm curious about is that
>rfc2507 (section 7.9) doesn't mention the Sequence Number
>field in AH. It seems that it can also be compressed since it
>monotonically increases (rfc2402, section 2.5). Mikael, maybe
>I missed some reason that we should not compress it?

The reason that it wasn't compressed in 2507 is that the compression
scheme for non-TCP didn't deal with deltas. ROHC can decide to 
compress that field. 

Micke