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Topic Title: Slow Performance over WAN
Topic Summary: Slow WAN Performance
Created On: 28-Aug-2007 14:22
Status: Read Only
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 28-Aug-2007 14:22
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Thomas Soens

Posts: 1
Joined: 28-Aug-2007

Hello All,

we have performance problems over WAN.
If we synchronize a project. For example one Project with a capacity of 100 MB.
The synchronization prozess takes about 3 hours! (the WAN Connection is 2 MBit/s)
If we synchronize over a WAN connection with 34 MBit /s it takes 55 minutes. Also to long for this connection.

Does anyone have any suggestion?
We also tried to use WAN Optimization Appliance (WANJet from f5 networks) But it does not help.

Thanks for any help,

Thomas
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 30-Aug-2007 06:06
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Toni Arte

Posts: 30
Joined: 16-Aug-2004

Synergy is very sensitive to network latency, it just doesn't work too well over WAN. Synergy 7.0 release (due 1H08) is supposed to significantly enhance performance over WAN.

We have addressed the problem by using DCM, the developers will always use the local server. That of course brings it's own issues.
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 3-Sep-2007 17:06
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Stuart Barry

Posts: 4
Joined: 3-Jul-2003

An alternative topology is to site a Windows Terminal Server at your Synergy Server's location. Then establish a remote desktop connection to the terminal server and start your Synergy clients there. You can either start the PC client directly or, using an XWindows emulator on the terminal server, start a UNIX client on your UNIX server. Then synchronisation of project work areas is over the LAN at your Server location rather than via the WAN.

Whilst the performance of the remote desktop connection is reasonably good, you still need a fairly fast connection. We use 10 Mbits/sec.

Our projects are larger than yours but synchronisation completes in a few minutes using this topology. And it avoids the expense and complexity of DCM.

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