[BBLISA] Odd Latency issues over VPN

Nick Cammorato nick.cammorato at gmail.com
Fri Jan 24 13:15:08 EST 2014


On Fri, Jan 24, 2014 at 12:39 PM, John Stoffel <john at stoffel.org> wrote:

>
> Nick,
>
> From looking at your description, it really sounds like you've got
> some sort of caching in the middle which is slowing things down.  But
> you don't explain the other side of the VPN well enough to know.
>
>
No caching, no application acceleration anywhere I'm aware of.


> Can the client using the VPN got a simple FTP from either of your
> Confluence servers at full speed?  Or can they pull http data from
> other internal hosts over the VPN at full speed.
>

Installed vsftpd real quick, SCPed a test file over to the pub directory -
it started at 2.5 and went up to 3.5 MB/s on the transfer up.

Pulled back down over FTP and SCP at 10kbps.

The fact that serial access is slow, while parallel access is fast
> is... surprising.  Does each access when done in parallel stay at
> 10kbps, or do they all speed up to whatever the max the pipe to their
> end supports.
>

The all speed up(to 200kbps or so) until one remains, then it drops back
down.  It's utterly bizzare.
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