Kbase P34272: Does Progress work better with Network cards set to Half Duplex or Full Duplex?
| Autor |
Progress Software Corporation - Progress |
| Acesso |
Público |
| Publicação |
5/6/2010 |
|
Status: Verified
GOAL:
Does Progress work better with Network cards set to Half Duplex or Full Duplex?
GOAL:
Does OpenEdge work faster with Network cards set to Half Duplex or Full Duplex?
GOAL:
How to improve network cards configuration
FACT(s) (Environment):
All Supported Operating Systems
Progress 6.x
Progress 7.x
Progress 8.x
Progress 9.x
OpenEdge 10.x
FIX:
With a properly configured Ethernet network and the right hardware, you
might achieve 20 percent or so better network transfer rates when using
full-duplex as compared to half-duplex.
However: it is very common for people to have misconfigured or incorrect
network hardware and /very/ poor performance with full-duplex. Throughput
is not zero, but can be very low.
Full-duplex Ethernet is point-to-point. To get it right, both ends of the
Ethernet segment must be connected to full-duplex capable devices and both
ends must be configured as full-duplex. If one end is half-duplex and the
other is full duplex, then the network may work part of the time and packets
may be dropped part of the time, resulting in a large number of IP and
TCP/IP retransmissions.
If your computer is connected to a switch, it must be a full-duplex capable
switch. If your computer is connected to a hub, you cannot use full-duplex
at all.