From: kevin gannon (kevin@gannons.net)
Date: Wed Nov 09 2005 - 04:36:43 GMT-3
Have seen it sometimes on LANs with low round trip times to the servers
which are a little slow in responding. If memory serves me right certain
versions of NT wait 3*RTT before sending the packet again.
Its worth looking for a frozen sliding window which would indicate that
the server is saying "please slow down ".
Regards
Kevin
On 11/9/05, asadovnikov <asadovnikov@comcast.net> wrote:
> Yes, I have seen it. Was no retransmissions though it just so looked on the
> sniffer capture. Apparently certain versions of Sniffer SW and Cisco VPN
> client drive each other crazy like that.
>
> Best Regards,
> Alexei
>
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of Ted
> McDermott
> Sent: Tuesday, November 08, 2005 1:55 PM
> To: ccielab@groupstudy.com
> Subject: Retransmissions on FTP and Xcopy
>
> Has anyone ever seen duplicate frames sent out from
> one workstation to another within a few microseconds
> for every frame sent on a copy to a different device?
> The retransmissions happen right after the first frame
> is sent, without waiting for any kind of timeout. This
> effectively doubles the size and time required for a
> file transmission. I know this is off-topic, but I am
> hoping someone else has seen the annoying anomaly.
>
> Thanks,
>
> Ted McDermott
>
>
>
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