User Guide

6-2
Catalyst 6500 Series Switch Cisco IOS Software Configuration Guide—Release 12.1 E
78-14099-04
Chapter 6 Configuring Interfaces
Using the Interface Command
• Port number—The physical port number on the module. On the Catalyst 6500 series switch, the port
numbers always begin with 1. When facing the rear of the switch, ports are numbered from the left
to the right.
You can identify ports from the physical location. You also can use show commands to display
information about a specific port, or all the ports.
Note With Release 12.1(11b)E and later releases, when you are in configuration mode you can enter EXEC
mode-level commands by entering the do keyword before the EXEC mode-level command.
Using the Interface Command
Note You use the commands described in this section to configure both physical ports and logical interfaces.
These procedures apply to all interface configuration processes. Begin the interface configuration
process in global configuration mode.
Step 1 Enter the configure terminal command at the privileged EXEC prompt to enter global configuration
mode:
Router# configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
Router(config)#
Step 2 In the global configuration mode, enter the interfaces command. Identify the interface type and the
number of the connector or interface card.
The following example shows how to select Fast Ethernet, slot 5, interface 1:
Router(config)# interfaces fastethernet 5/1
Router(config-if)#
Step 3 Enter the show interfaces EXEC command to see a list of all interfaces that are installed. A report is
provided for each interface that the device supports, as shown in this display:
Router# show interfaces fastethernet 5/48
FastEthernet5/48 is up, line protocol is up
Hardware is C6k 100Mb 802.3, address is 0050.f0ac.3083 (bia 0050.f0ac.3083)
Internet address is 172.20.52.18/27
MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Half-duplex, 100Mb/s
ARP type: ARPA, ARP Timeout 04:00:00
Last clearing of "show interface" counters never
Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
Queueing strategy: fifo
Output queue :0/40 (size/max)
5 minute input rate 1000 bits/sec, 1 packets/sec
5 minute output rate 1000 bits/sec, 1 packets/sec
4834677 packets input, 329545368 bytes, 0 no buffer
Received 4796465 broadcasts, 0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 input packets with dribble condition detected
51926 packets output, 15070051 bytes, 0 underruns
0 output errors, 2 collisions, 2 interface resets