Citrix Access Gateway (CAG) Capacity Planning

Friday, 20 January 2006 by Michel Roth

David Caddick has been thinking about how to size a Citrix Access Gateway Environment for 10.000 users. Since there's no official documentation of this (yet - that I know of) a Citrix SE helped out on providing some numbers. Good stuff to know about.

� 2000 is the number of tunnels that an appliance can handle at any one time
� 2000 is a hard limit, each tunnel takes a little memory and at 2000 tunnels the appliance runs out of memory
� An ICA session should only use 1 tunnel (assuming session sharing is working) so you can get 2000 users on a gateway

Read it here.