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Re: Reverse port forward channel performance


Hi Gearoid,

It's possible that channel windows are not initialized the same way in forward and reverse forwarding. This could result in bad performances if the window is too small.

I'll check if I can find anything.

Aris

Le 27/01/12 18:16, Gearoid Murphy a écrit :
Hi,

We've been observing poor throughput (230KB/s) on libssh channels
generated from reverse port forwarding (ssh_forward_accept) via an
OpenSSH server.

Conversely, when using a channel generated through a normal port
forwarding call (ssh_channel_open_forward), we observe far greater
throughput (8MB/s).

Has anyone observed or experienced similar issues?, is there some
configuration aspect of the channel setup which needs to be modified?

libssh 0.5.2-1
Linux 3.0.0-15-generic x86_64 x86_64 x86_64 GNU/Linux
openssh-server 1:5.8p1

Thanks
- Gearoid



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