Re: guessing when TSO is present

[Rick Jones <rick.jones2 () hp com>]

Guy Harris wrote:
> On Apr 7, 2006, at 10:08 AM, Rick Jones wrote:
>
> > As for checking against the normal MTU, does tcpdump/libpcap have  
> > that information?
>
>
> Only to the extent that it could infer that from the link-layer  type.  
> (Jumbo frames might make that tricky.)

And since TSO _really_ works on the MSS of the *connection* not the MTU 
of the link, knowing the link MTU doesn't really tell you much anyway.

I think the aforesuggested addition of the "is the checksum 0" would be 
a sufficient addition to the existing heuristic.

rick jones
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