Kbase P5946: Limits of Progress Client Networking on a WAN
| Autor |
Progress Software Corporation - Progress |
| Acesso |
Público |
| Publicação |
26/02/2010 |
|
Status: Verified
SYMPTOM(s):
Slow performance using Client Networking through a Wide Area Network
FACT(s) (Environment):
All Supported Operating Systems
Progress 8.x
Progress 9.x
OpenEdge 10.x
CHANGE:
A client has been attached to a low bandwidth connection (64 KBPS, 128 KBPS)
CAUSE:
When an application is deployed in a LAN environment and then moved to a WAN there are serious considerations to be made.
Typical WAN connections range from 64 KBPS to 128 KBPS in bandwidth. If we think that the slowest LAN now is aprox. 10,000 KBPS (10 MB Ethernet) this in theory would mean that the application should run 156 times slower than the one that runs over a LAN.
The speed of the application not just depends on the speed of the connection, but this gives us a rough idea of why it is so slow.
There are some programming practices and parameters that can be used to increase the efficiency of the transmission, but the difference in speed is unavoidable.
FIX:
Consider the use web technologies like Progress WebSpeed or Progress WebClient to work with a thin client. Other possibilities include the use of third party products like Citrix, MS Terminal Server,PCAnyhere or VNC.