Citrix questions

[Donachie]

Been asked to get some general advice regarding moving our network to thin client - Citrix being suggested as the method to use.

The servers will be stored in a remote site with the users conencting from the office. We have a 100 user base - what bandwidth would we need to run 100 thin clients from our office to the server site?

 

[lb63640]

How many servers do you plan to roll out?

 

[Donachie]

we'd probably run about 15 application servers.

 

[patrickrouse]

1. Citrix servers need to be in the same location as the back-end data they will access, or your bandwidth requirements will be more than you can afford.

2. 100 concurrent RDP or ICA connections will likely need between 2.5 and 5Mbps upstream bandwidth (from terminal server to thin-clients). If you do not control printing bandwidth with an EMF Printer, or Citrix bandwidth policy youo could require more bandwidth. Each concurrent session that is actually being used normally requires 20-50Kbps, with infrequent spikes of higher bandwidth usage.


Test your apps to see how much bandwidth they use over RDP or ICA connections.

3. Make sure the connection is not latent, as the higher the latency, the more un-usable a connection is. Anything over 200 ms is pretty useless, and Satellite connectivity is out of the question.

Patrick Rouse
Microsoft MVP - Terminal Server

http://www.sessioncomputing.com