Latency - Causing problems with Citrix connections

[DarraghFitzpatrick]

Anybody know at what level latency becomes an issue for a remote citrix connection.
Have had issues with certain connections over dialup and ISDN. According to all documentation 30-40k should be substanain bandwidth to sustain a connection.

Anybody know a good tool I can use to measure the effect latency is having on a specific connection ?

Darragh

 

[xs4citrix]

TCP Keepalive: (can also be set on clientside, and also boosts client-server traffic on the NIC)

[KEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters]
"KeepAliveTime"=dword:0000ea60
"KeepAliveInterval"=dword:000003e8

ICA Keepalive:

[HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\Citrix]
"IcaEnableKeepAlive"=dword:00000001
"IcaKeepAliveInterval"=dword:0000003c

Optimised setting on server for wan environments to minimise latency:

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters]
"TcpMaxDataRetransmissions"="10"

If that does not help, play with the MTU a bit.

HKLM\system\currentcontrolset\services\tcpip\parameters\interfaces\"ID for Adapter"

Add a dword value MTU with a value of 1492 decimal

(Default MTU for ethernet = 1500, for DSL = 1492, dial-up = 576)

NT/2000:

Network MTU(Bytes)
-----------------------------------
16 Mbit/Sec Token Ring 17914
4 Mbits/Sec Token Ring 4464
FDDI 4352
Ethernet 1500
IEEE 802.3/802.2 1492
X.25 576

windows XP:

16 Mbps Token Ring 17914
4 Mbps Token Ring 4464
FDDI 4352
Ethernet 1500
IEEE 802.3/802.2 1492
PPPoE (WAN Miniport) 1480
X.25 576


Stefan

http://www.printingsupport.com