
7-3
Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide
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Chapter 7 Configuring the Switch Ports
Changing the Port Speed and Duplex Mode
Setting Speed and Duplex Parameters
Beginning in privileged EXEC mode, follow these steps to set the speed and duplex parameters on a
10/100 port:
Configuring Flow Control on Gigabit Ethernet Ports
Beginning in privileged EXEC mode, follow these steps to configure flow control on a Gigabit Ethernet
port.
Command Purpose
Step 1
configure terminal Enter global configuration mode.
Step 2
interface interface Enter interface configuration mode, and enter the port to be configured.
Step 3
speed {10 | 100 | auto} Enter the speed parameter for the port.
You cannot enter the speed on Gigabit Ethernet or ATM ports.
Step 4
duplex {full | half | auto} Enter the duplex parameter for the port.
Step 5
end Return to privileged EXEC mode.
Step 6
show running-config Verify your entries.
Step 7
copy running-config startup-config (Optional) Save your entry in the configuration file. This retains the
configuration when the switch restarts.
Command Purpose
Step 1
configure terminal Enter global configuration mode.
Step 2
interface interface Enter interface configuration mode, and enter the port to be configured.
Step 3
flowcontrol [asymmetric |
symmetric]
Configure flow control for the port.
Step 4
end Return to privileged EXEC mode.
Step 5
show running-config Verify your entries.
Step 6
copy running-config startup-config (Optional) Save your entry in the configuration file. This retains the
configuration when the switch restarts.
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