yep my mistake c’est 1460 bytes
au fait pour ton souci, consultes :
http://support.citrix.com/article/ctx103444 Client/server latency optimizations
http://support.citrix.com/article/ctx112323 Intermittent Performance Issue: Networking
http://support.citrix.com/article/ctx104945 Users Are Randomly Disconnected Over an IPSec WAN Link
http://support.citrix.com/article/ctx110007 Client Connectivity and ICA KeepAlives
http://support.citrix.com/article/CTX19314 Citrix ICA Priority Packet Tagging