Allied Telesis AT-8100 Series - Manual (Page 227)

AT-8100 Switch Command Line User’s Guide
227
POLARITY
Syntax
polarity auto|mdi|mdix
Parameters
auto
Activates auto-MDI/MDIX.
mdi
Sets a port’s wiring configuration to MDI.
mdix
Sets a port’s wiring configuration to MDI-X.
Mode
Port Interface mode
Description
Use this command to set the wiring configuration of twisted pair ports that
are operating at 10 or 100 Mbps, in half- or full-duplex mode.
A twisted pair port that is operating at 10 or 100 Mbps can have one of two
wiring configurations, known as MDI (medium dependent interface) and
MDI-X (medium dependent interface crossover). To forward traffic, a port
on the switch and a port on a network device must have different settings.
For instance, the wiring configuration of a switch port has to be MDI if the
wiring configuration on a port on a network device is MDIX.
Confirmation Command
“SHOW RUNNING-CONFIG” on page 170
Examples
This example sets port 28 to the MDI wiring configuration:
awplus> enable
awplus# configure terminal
awplus(config)# interface port1.0.28
awplus(config-if)# polarity mdi