Allied Telesis AT-S63 User Manual
Page 105
AT-S63 Management Software Menus Interface User’s Guide
Section I: Basic Operations
105
autonegotiation on the port and set the port’s speed and duplex
mode manually.
When the port is set to autonegotiate, the MDI/MDI-X setting is
locked at auto-MDI/MDI-X. The switch automatically determines
the correct MDI/MDI-X setting. You cannot set MDI/MDI-X
manually.
When autonegotiation is disabled on a port, the auto-MDI/MDI-X
feature on a port is also disabled, and the port defaults to the MDI-
X configuration. Consequently, if you disable autonegotiation and
set a port’s speed and duplex mode manually, you might also need
to set the port’s MDI/MDI-X setting as well.
Note
Items 7, 8, and 9 are not available for SFP and GBIC ports 23 and
24 which are automatically set to 1000 Mbps, full-duplex, and auto-
MDI/MDIX.
7 - Speed
This item is only available when Negotiation is set to Manual. Type 7 to
toggle between two selections:
10 Mbps
100 Mbps
1000 Mbps is only available when you set selection 6, Negotiation, to
Automatic.
8 - Duplex
This item is only available when Negotiation is set to Manual. The
possible settings are full-duplex and half-duplex.
9 - MDI Crossover
This item is only available when Negotiation is set to Manual.
This selection sets the wiring configuration of the port. The
configuration can be MDI or MDI-X.
The twisted pair ports on the switch feature auto-MDI/MDI-X. They
configure themselves automatically as MDI or MDI-X when connected
to an end node. This allows you to use either a straight-through or
crossover twisted pair cable when connecting any network device to a
port on the switch.
When a port is using autonegotiation to set its speed and duplex mode,
the only available setting for this item is Auto. The port automatically
sets its MDI/MDI-X setting.
But if you disable autonegotiation on a port and set a port’s speed and
duplex mode manually, the auto-MDI/MDI-X feature is also disabled. A
port where autonegotiation has been disabled defaults to MDI-X.