Lab D: Configuring Command Aliases on IOS Devices

Lab Objective:

The objective of this lab exercise is for you to learn and understand how to configure and use aliases within the Cisco IOS.

Lab Purpose:

Configuring and using aliases is a fundamental skill. Aliases are customized names assigned to Cisco IOS commands that can be used in place of long commands. As a Cisco engineer, as well as in the Cisco CCNA exam, you will be expected to know how to configure and use aliases on Cisco IOS devices.

Certification Level:

This lab is suitable for CCNA certification exam preparation.

Lab Difficulty:

This lab has a difficulty rating of 3/10.

Readiness Assessment:

When you are ready for your certification exam, you should complete this lab in no more than 10 minutes.

Lab Topology:

Please use any single router or switch to complete this lab.

Task 1:

Configure a hostname on your router or switch.

Task 2:

Configure the following aliases on your device:

int:             show ip interfaces brief
save:         copy running-config startup-config
proc:          show processes cpu

Task 3:

Verify your configured aliases. Now test your aliases and validate that they operate as expected.

Configuration and Verification

Task 1:

For reference information on configuring hostnames, please refer to earlier labs.

Task 2:

 R1#conf t 
Enter configuration commands, one per line.  End with CTRL/Z. 
R1(config)#alias exec int show ip interface brief 
R1(config)#alias exec save copy running-config startup-config 
R1(config)#alias exec proc show processes cpu 

Task 3:

R1#show aliases 
Exec mode aliases: 
h                     help 
lo                    logout 
p                     ping 
r                     resume 
s                     show 
u                     undebug 
un                    undebug 
w                     where 
int                   show ip interface brief 
save                  copy running-config startup-config 
proc                  show processes cpu 

Interface        IP-Address  OK? Method Status                Protocol 
FastEthernet0/0  unassigned  YES manual administratively down down 
Serial0/0        unassigned  YES NVRAM  administratively down down 
Serial0/1        unassigned  YES manual administratively down down 

Destination filename [startup-config]? 
Building configuration... 

CPU utilization for five seconds: 0%/0%; one minute: 4%; five minutes: 1% 
PID Runtime(ms)   Invoked   uSecs   5Sec   1Min   5Min TTY Process 
1           0         2    0  0.00%  0.00%  0.00%   0 Chunk Manager 
2           0       110    0  0.00%  0.00%  0.00%   0 Load Meter 

[output truncated for brevity]


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