Specifications

Configuring the 12E/2FE Interfaces
PA-12E/2FE Ethernet Switch 10BASE-T and 100BASE-TX Port Adapter Installation and Configuration
6-4
Figure 6-2 12E/2FE Interface Port Number Example (Cisco uBR7246 Shown)
.
Note For dual-wide port adapters, such as the 12E/2FE, the port adapter slot number in the physical
port addresses is the left port adapter slot (slot 1 in a Cisco uBR7246, slot 1 or slot 3 in a Cisco 7204;
and slot 1, slot 3, or slot 5 in a Cisco 7206).
You can identify interface ports by physically checking the port adapter slot/interface port location
on the front of the router or by using show commands to display information about a specific
interface or all interfaces in the router.
Shutting Down an Interface
Before you replace an interface cable, replace port adapters, or remove an interface that you will not
replace, use the shutdown command to shut down (disable) the interfaces to prevent anomalies from
occurring when you reinstall the new or reconfigured port adapters. When you shut down an
interface, it is designated administratively down in the show command displays. Follow these steps
to shut down an interface:
Note Interface port numbers 0 and 1 of the 12E/2FE port adapter are identified by the system as
Fast Ethernet interfaces, while interface port numbers 2 through 13 are identified as Ethernet
interfaces.
Step 1 Enter the privileged level of the EXEC command interpreter. See the
“Using the EXEC Command Interpreter” section on page 6-1
Step 2 At the privileged-level (enable) prompt, enter configuration mode and specify that the
console terminal will be the source of the configuration commands as follows:
Router# configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
Router(config)#
14619
12E/2FE port adapter
(interface port addresses 1/0, 1/1,1/2,
1/3, 1/4, 1/5, 1/6, 1/7, 1/8, 1/9, 1/10,
1/11, 1/12, 1/13 from left to right )