HP ProCurve Management And Configuration Manual page 236

Port Status and Configuration
Viewing Port Status and Configuring Port Parameters
10-16
For more information on MDI-X, refer to the appendix titled "Switch Ports and
Network Cables" in the Installation and Getting Started Guide for your
switch.
Manual Override. If you require control over the MDI/MDI-X feature you can
set the switch to either of two non-default modes:
■ Manual MDI
■ Manual MDI-X
Table 10-2 shows the cabling requirements for the MDI/MDI-X settings.
Table 10-2. Cable Types for Auto and Manual MDI/MDI-X Settings
Setting PC or Other MDI Device Type
Manual MDI Crossover Cable
Manual MDI-X Straight-Through Cable
Auto-MDI-X
(The Default)
The Auto-MDIX features apply only to copper port switches using twisted-pair
copper Ethernet cables.
Syntax: interface < port-list > mdix-mode < auto-mdix | mdi | mdix >
auto-mdix is the automatic, default setting. This configures the
port for automatic detection of the cable (either straight-through
or crossover).
mdi is the manual mode setting that configures the port for
connecting to either a PC or other MDI device with a crossover
cable, or to a switch, hub, or other MDI-X device with a straight-
through cable.
mdix is the manual mode setting that configures the port for
connecting to either a switch, hub, or other MDI-X device with
a crossover cable, or to a PC or other MDI device with a straight-
through cable.
Syntax: show interfaces config
Lists the current per-port Auto/MDI/MDI-X configuration.
MDI/MDI-X Device Type
Switch, Hub, or Other MDI-X Device
Straight-Through Cable
Either Crossover or Straight-Through Cable
Crossover Cable