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_ work
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.)
Does libpcap/tcpdump have any way of knowing th
ronnie sahlberg wrote:
large segment offload (LSO)
can be easily detected by
TCP checksum==0and being incorrect
and that the segment is much larger than the normal mtu.
I like the idea of there being a few additional sanity checks, like I
said, what I did there was a WAG :) So, adding a
large segment offload (LSO)
can be easily detected by
TCP checksum==0and being incorrect
and that the segment is much larger than the normal mtu.
On 4/7/06, Guy Harris <[EMAIL PROTECTED]> wrote:
> Hannes Gredler wrote:
> > checked in - thanks for the submission - /hannes
> >
> > On Wed, Ja
Hannes Gredler wrote:
checked in - thanks for the submission - /hannes
On Wed, Jan 19, 2005 at 05:35:13PM -0800, Rick Jones wrote:
| A while back I think I posted something asking about what to do about TSO
| (large send) and how it generated "IP bad-len 0" output when tracing on a
| TSO-enab
checked in - thanks for the submission - /hannes
On Wed, Jan 19, 2005 at 05:35:13PM -0800, Rick Jones wrote:
| A while back I think I posted something asking about what to do about TSO
| (large send) and how it generated "IP bad-len 0" output when tracing on a
| TSO-enabled sender.
|
| I had a
Rick Jones wrote:
A while back I think I posted something asking about what to do about
TSO (large send) and how it generated "IP bad-len 0" output when
tracing on a TSO-enabled sender.
I've had acouple folks ask "What's TSO?" so...
TSO == TCP Segmentation Offload. AKA "large send." A feature
A while back I think I posted something asking about what to do about TSO (large
send) and how it generated "IP bad-len 0" output when tracing on a TSO-enabled
sender.
I had a couple spare cycles, so I decided to just take a WAG at what might be
done, which was to say that if the IP len was ze
