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Configuring Port Settings 55
If you modify any of these settings, click Apply
to save your changes.
Figure 39 Port Administration Setup Screen
Speed/Duplex for 1000 Mbps Connections
You cannot preset the speed to 1000 Mbps. To
run a port at 1000 Mbps, you must enable
autonegotiation for the port. When
autonegotiation is enabled, the Switch will
automatically connect at 1000 Mbps, providing
the connected device also supports this speed.
1000 Mbps connections are always full-duplex.
Half-duplex connections are only available for
10 Mbps and 100 Mbps settings.
CAUTION: Before manually setting a port to
full-duplex, verify that the device connected to
the port is also manually set to the same speed
and duplex setting. If connecting link partners
are left to autonegotiate for a link manually set
on this switch to full-duplex, they will always
negotiate to half-duplex, resulting in a duplex
mismatch. This can result in a significant
reduction in network performance. If you are
unsure of how to configure the speed/duplex
setting, simply enable autonegotiation for the
port.
You cannot modify the speed/duplex settings of
ports that are members of a trunk or
aggregated link.
Supported SFP transceivers only operate at
1000
Mbps full-duplex. Inserting an SFP
transceiver into a gigabit port disables the
corresponding RJ-45 port, even if no fiber cable
is inserted.