HP (Hewlett-Packard) 100BASE-TX Computer Hardware User Manual


 
Chapter 1 13
Installing and Configuring PCI 10/100 Base-TX
Manual Speed and Duplex Mode Configuration
some switches may disable that switch port from doing autonegotiation.
Verify that both the card and the switch port are operating in the same
speed and duplex mode as desired.
If you use manual configuration to change the card to a different speed
and duplex mode, you may need to turn autonegotiation on first before
the manual setting takes place.
NOTE Mismatches between the speed, autonegotiation, or duplex mode of the
card and switch will cause incorrect operation.