Using The Interface Command - Cisco 4500M Software Manual

Using the interface Command

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You can identify interfaces by physically checking the slot/interface location on the switch. You can also
use the Cisco IOS show commands to display information about a specific interface or all the interfaces.
Using the interface Command
These general instructions apply to all interface configuration processes:
At the privileged EXEC prompt, enter the configure terminal command to enter global configuration
Step 1
mode:
Switch# configure terminal
Enter configuration commands, one per line.
Switch(config)#
Step 2 In global configuration mode, enter the interface command. Identify the interface type and the number
of the connector on the interface card. The following example shows how to select Fast Ethernet, slot 5,
interface 1:
Switch(config)# interface fastethernet 5/1
Switch(config-if)#
Interface numbers are assigned at the factory at the time of installation or when modules are added to a
Step 3
system. Enter the show interfaces EXEC command to see a list of all interfaces installed on your switch.
A report is provided for each interface that your switch supports, as shown in this display:
Switch(config-if)#Ctrl-Z
Switch#show interfaces
Vlan1 is up, line protocol is down
Hardware is Ethernet SVI, address is 0004.dd46.7aff (bia 0004.dd46.7aff)
MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec,
Encapsulation ARPA, loopback not set
ARP type: ARPA, ARP Timeout 04:00:00
Last input never, output never, output hang never
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 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
GigabitEthernet1/1 is up, line protocol is down
Hardware is Gigabit Ethernet Port, address is 0004.dd46.7700 (bia 0004.dd46.7700)
MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec,
Encapsulation ARPA, loopback not set
Keepalive set (10 sec)
Auto-duplex, Auto-speed
ARP type: ARPA, ARP Timeout 04:00:00
Software Configuration Guide—Release 12.2(25)EW
4-2
Slot number—The slot in which the interface module is installed. Slots are numbered starting
with 1, from top to bottom.
Interface number—The interface number on the module. The interface numbers always begin with 1.
When you are facing the front of the switch, the interfaces are numbered from left to right.
reliability 255/255, txload 1/255, rxload 1/255
0 packets input, 0 bytes, 0 no buffer
Received 0 broadcasts, 0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 packets output, 0 bytes, 0 underruns
0 output errors, 0 interface resets
0 output buffer failures, 0 output buffers swapped out
reliability 255/255, txload 1/255, rxload 1/255
Chapter 4
End with CNTL/Z.
Configuring Interfaces
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