Procedures For Configuring Interfaces - Cisco Catalyst 3750 Software Configuration Manual

Chapter 9 Configuring Interface Characteristics
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You can identify physical interfaces by physically checking the interface location on the switch. You can
also use the IOS 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.

Procedures for Configuring Interfaces

These general instructions apply to all interface configuration processes.
Enter the configure terminal command at the privileged EXEC prompt:
Step 1
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 and number. For physical
interfaces, this includes the switch number (1) and the number of the port to be configured:
Switch(config)# interface gigabitethernet1/0/1
Switch(config-if)#
Note
Follow each interface command with the interface configuration commands that the interface requires.
Step 3
The commands that you enter define the protocols and applications that will run on the interface. The
commands are collected and applied to the interface when you enter another interface command or enter
end to return to privileged EXEC mode.
You can also configure a range of interfaces by using the interface range or interface range macro
global configuration commands. Interfaces configured in a range must be the same type and must be
configured with the same feature options.
Step 4 After you configure an interface, verify its status by using the show privileged EXEC commands listed
in the
Enter the show interfaces privileged EXEC command to see a list of all interfaces on or configured for
the switch. A report is provided for each interface that the device supports or for the specified interface.
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Module number—The module or slot number on the switch. The module number is zero (0) for Fast
Ethernet interfaces and standard SFP module interfaces or 1 for enhanced-services (ES) SFP module
interfaces.
Port number—The interface number on the switch. The port numbers always begin at 1, starting at
the left when facing the front of the switch, for example, fastethernet 1/0/1, fastethernet 1/0/2. The
numbers start again from 1 when the type of interface changes. The standard SFP module interfaces
are gigabitethernet 1/0/1 and gigabitethernet 1/0/2, and the ES SFP module interfaces are
gigabitethernet 1/1/1 and gigabitethernet 1/1/2.
You do not need to add a space between the physical interface type and the interface number. For
example, in the preceding line, you can specify gigabitethernet 1/0/1, gigabitethernet1/0/1,
gi 1/0/1, or gi1/0/1.
"Monitoring and Maintaining the Interfaces" section on page 9-20.
Catalyst 3750 Metro Switch Software Configuration Guide
Using Interface Configuration Mode
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