Cisco Systems 3750E manual Procedures for Configuring Interfaces, 11-16

Chapter 11 Configuring Interface Characteristics

Using Interface Configuration Mode

•Port number—The interface number on the switch. The 10/100/1000 port numbers always begin at 1, starting with the far left port when facing the front of the switch, for example, gigabitethernet1/0/1 or gigabitethernet1/0/8.

On a switch with 10/100/1000 ports and Cisco TwinGig Converter Modules in the 10-Gigabit Ethernet module slots, the port numbers restart with the 10-Gigabit Ethernet ports: tengigabitethernet1/0/1.

On a switch with 10/100/1000 ports and Cisco dual SFP X2 converter modules in the 10-Gigabit Ethernet module slots, the SFP module ports are numbered consecutively following the 10/100/1000 interfaces. For example, if the switch has 24 10/100/1000 ports, the SFP module ports are gigabitethernet1/0/25 through gigabitethernet1/0/28.

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 on a Catalyst 3750-E switch:

•To configure 10/100/1000 port 4 on a standalone switch, enter this command:

Switch(config)# interface gigabitethernet1/0/4

•To configure 10-Gigabit Ethernet port 1 on a standalone switch, enter this command:

Switch(config)# interface tengigabitethernet1/0/1

•To configure 10-Gigabit Ethernet port on stack member 3, enter this command:

Switch(config)# interface tengigabitethernet3/0/1

If the switch has SFP modules, 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

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 (only Catalyst 3750-E switches), 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 the 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.

	Catalyst 3750-E and 3560-E Switch Software Configuration Guide
11-16	OL-9775-02