[olug] A TCP/IP mystery

Jay Swackhamer Jay at RebootTheUser.com
Thu Mar 13 03:25:26 UTC 2008


I would say that the MTU is set incorrectly for some point in the network.

What does the end to end network consist of, 100MB/1GB or is there a  
remote link somewhere in the chain?

-- 
Jay Swackhamer
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Quoting Dave Thacker <dthacker9 at cox.net>:

> On Wednesday 12 March 2008 19:30:28 Jay Swackhamer wrote:
>> Is it actually tunneled, or are they using sftp/scp?(please dont tell
>> me they setup a ssh tunnel and then use FTP)
>
> Yes it's actually tunnelled.   The data being sent is xml records from a
> windows app written in (unknown) to a perl listener on the linux machine.
>>
>> I've typically witnessed windows machines using sftp/scp/other
>> encrytion only getting around 3Megabytes/sec through an encrypted link
>> on a 100MB or 1GB network, and on the same network, two linux boxes
>> will get 10-11Megabytes/sec.
>
> The machines are using SSLv3.
>>
>> It would help to know what they mean by 'blocking'. Using tcp the
>> connection should be slower or faster, but not just hung.
>
> I think that's windows developerese for "data transmission stops"
>
> Dave
>
>
>
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