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Catalyst 2950 Desktop Switch Hardware Installation Guide
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Chapter 2 Installation
Connecting to 10/100 and 10/100/1000 Ports
Connecting to 10/100 and 10/100/1000 Ports
The 10/100 ports configure themselves to operate at the speed and duplex settings
of attached devices.They operate at 10 or 100 Mbps in half- or full-duplex mode.
If the attached devices do not support autonegotiation, you can explicitly set the
speed and duplex parameters.
The 10/100/1000 ports configure themselves to operate at the speed setting of
attached devices.These ports on Catalyst 2950T-24 switches operate at 10, 100, or
1000 Mbps only in full-duplex mode. If the attached devices do not support
autonegotiation, you can explicitly set the speed parameter.
Connecting devices that do not autonegotiate or devices with manually set speed
and duplex parameters can reduce performance or result in link failures between
the devices. To maximize performance, choose one of these methods for
configuring the ports:
• Let the ports autonegotiate both speed and duplex for 10/100 ports and only
speed for 10/100/1000 ports.
• Set the speed and duplex parameters on both ends of the connection.
When connecting the ports on the Catalyst 2950G-24-EI-DC switches to other
devices, follow these guidelines:
Caution To comply with the intrabuilding lightning surge requirements, intrabuilding
wiring must be shielded, and the shield for the wiring must be grounded at both
ends.
Caution The Catalyst 2950G-24-EI-DC switch is suitable only for intrabuilding or
nonexposed wiring connections.
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