Cisco Systems 8540 CSR, 8510 CSR appendix General Instructions for Configuring Interfaces

Chapter 4 Configuring Interfaces

General Instructions for Configuring Interfaces

Figure 4-1 Interface Port Identifier Format

slot number / subslot number / interface number

The slot in which the interface module or port adapter is installed. Slots are numbered starting at 0.

The subslot in which the interface module or port adapter is installed. For a full-width interface module, this number is always 0.

The port or interface number on the interface module or port adapter. Numbering always starts at 0 and goes from left to right.

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The interface port identifiers on the Ethernet modules remain the same regardless of whether other modules are installed or removed. However, when you move an interface module to a different slot, the first number in the address changes to reflect the new slot number.

You can identify module ports by physically checking the slot/subslot/interface location on the back of the switch router. You can also use Cisco IOS show commands to display information about a specific interface, or all the interfaces, in the switch router.

General Instructions for Configuring Interfaces

The following general configuration instructions apply to all interfaces. Begin in global configuration mode. To configure an interface, follow these steps:

Step 1 Use the configure EXEC command at the privileged EXEC prompt to enter the global configuration mode.

Router> enable

Router# configure terminal

Router (config)#

Step 2 Enter the interface command, followed by the interface type (for example, Fast Ethernet or Gigabit Ethernet) and its interface port identifier (see the “Interface Port Identifier” section on page 4-2).

For example, to configure the Gigabit Ethernet port on slot 1, port 1, use this command:

Router(config)# interface gigabitethernet 1/0/1

	Layer 3 Switching Software Feature and Configuration Guide
78-6235-04, Cisco IOS Release 12.0(10)W5(18)		4-3