When you have a duplex mismatch between a server and a switch or a workstation and a switch you will only see problems in either the upload or the download, but not both. This table shows where you will see the extreme network latency when there is a duplex mismatch.
| PC | Switch-PC | Switch-Server | Server | | Upload | Download |
| Full |
Full |
Full |
Full |
|
Fast |
Fast |
| Full |
Full |
Half |
Full |
|
Slow |
Fast |
| Full |
Full |
Full |
Half |
|
Fast |
Slow |
| Full |
Half |
Full |
Full |
|
Fast |
Slow |
| Half |
Full |
Full |
Full |
|
Slow |
Fast |
| Full |
Full |
Half |
Half |
|
Fast |
Fast |