Allied Telesis AT-GS950/48, Руководство пользователя

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AT-GS950/48 Web Interface User Guide
69
Note
When QoS is enabled on a port, the Jumbo frame parameter can not
be enabled. To enable or disable QoS , see “Mapping CoS Priorities
to Egress Queues” on page 200 and “CoS Page” on page 200.
Mode -This parameter indicates the speed and duplex mode
settings for the port. You can use this parameter to set the speed
and duplex mode of a port. The possible settings are:
Ignore -This parameter indicates that the All setting does not
apply to the Mode field. In other words, each port is set
individually.
Auto -This parameter indicates the port is using Auto-
Negotiation to set the operating speed and duplex mode. The
actual operating speed and duplex mode of the port are
displayed in parentheses (for example, “1000F” for 1000 Mbps
full duplex mode) after a port establishes a link with an end
node.
Auto (1000F) -This parameter indicates the port is configured
for 1000Mbps operation in Auto-Negotiation mode.
1000/Full -This parameter indicates the port is configured for
1000Mbps operation in full-duplex mode.
100/Full -This parameter indicates the port is configured for
100Mbps operation in full-duplex mode.
10/Full -This parameter indicates the port is configured for
10Mbps operation in full-duplex mode.
100/Half -This parameter indicates the port is configured for
100Mbps operation in half-duplex mode.
10/Half -This parameter indicates the port is configured for
10Mbps operation in half-duplex mode.
When selecting a Mode setting, the following points apply:

When a twisted-pair port is set to Auto-Negotiation, the
end node should also be set to Auto-Negotiation to
prevent a duplex mode mismatch. A switch port using
Auto-Negotiation defaults to half-duplex if it detects
that the end node is not using Auto-Negotiation. This
can result in a mismatch if the end node is operating at
a fixed duplex mode of full-duplex. To avoid this
problem when connecting an end node with a fixed
duplex mode of full-duplex to a switch port, disable
Auto-Negotiation on the port and set the port’s speed
and duplex mode manually.