11-11
Catalyst 3750 Switch Software Configuration Guide
OL-8550-02
Chapter 11 Configuring Interface Characteristics
Using Interface Configuration Mode
You can identify physical interfaces by physically checking the interface location on the switch. You can
also use the show privileged EXEC commands to display information about a specific interface or all
the interfaces on the switch. The remainder of this chapter primarily provides physical interface
configuration procedures.
These are examples of how to identify interfaces:
• To configure 10/100/1000 port 4 on a standalone switch, enter this command:
Switch(config)# interface gigabitethernet1/0/4
• To configure 10/100 port 4 on stack member 3, enter this command:
Switch(config)# interface fastethernet3/0/4
• To configure 10-Gigabit module port 1 on a standalone switch, enter this command:
Switch(config)# interface tengigabitethernet1/0/1
• To configure 10-Gigabit module port on stack member 3, enter this command:
Switch(config)# interface tengigabitethernet3/0/1
If the switch has SFP modules, the numbering of these ports depends on the type of other interfaces on
the switch. If the port type changes from Fast Ethernet to Gigabit Ethernet (SFP), the port numbers begin
again from 1; if the port type remains Gigabit Ethernet, the port numbers continue consecutively.
• To configure the first SFP module port on stack member 1 with 24 10/100/1000 ports, enter this
command:
Switch(config)# interface gigabitethernet1/0/25
• To configure the first SFP module port on stack member 1 with 24 10/100 ports, enter this command:
Switch(config)# interface gigabitethernet1/0/1
Procedures for Configuring Interfaces
These general instructions apply to all interface configuration processes.
Step 1 Enter the configure terminal command at the privileged EXEC prompt:
Switch# configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
Switch(config)#
Step 2 Enter the interface global configuration command. Identify the interface type, the switch number, and
the number of the connector. In this example, Gigabit Ethernet port 1 on switch 1 is selected:
Switch(config)# interface gigabitethernet1/0/1
Switch(config-if)#
Note You do not need to add a space between the interface type and interface number. For example,
in the preceding line, you can specify either gigabitethernet 1/0/1, gigabitethernet1/0/1,
gi 1/0/1, or gi1/0/1.
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