When configuring a router I often use different show commands to check or troubleshoot the configuration. I always hate to type in the whole show command, so I use aliases instead. Aliases are also used in the Open Source community, when working with a terminal.

There are multiple options for the alias command, lets take a closer look:

• Alias exec: for Privileged Mode (for Router# prompt);
• Alias configure: for Global Configuration Mode (for Router(config)# prompt);
• Alias interface: for Interface Configuration Mode (for Router(config-if)# prompt;

Cisco IOS includes some built-in command aliases (of course, the Cisco IOS always accepts the shortest unique command). Default command aliases are for example:

Next are some alias command, which I use very often:

ALIAS EXEC

Router(config)# alias exec s show ip int brie | exclu unass

Router(config)# alias exec si show int status

Router(config)# alias exec r show run

Router(config)# alias exec rr show ip route

ALIAS CONFIGURE

Router(config)# alias configure vl1 interface vlan1

Router(config)# alias configure eigrp router eigrp 1024

ALIAS INTERFACE

Router(config)# alias interface ns no shutdown

Router(config)# alias interface load load-interval 30

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René Jorissen

Co-owner and Solution Specialist at 4IP Solutions

René Jorissen works as Solution Specialist for 4IP in the Netherlands. Network Infrastructures are the primary focus. René works with equipment of multiple vendors, like Cisco, Aruba Networks, FortiNet, HP Networking, Juniper Networks, RSA SecurID, AeroHive, Microsoft and many more. René is Aruba Certified Edge Expert (ACEX #26), Aruba Certified Mobility Expert (ACMX #438), Aruba Certified ClearPass Expert (ACCX #725), Aruba Certified Design Expert (ACDX #760), CCNP R&S, FCNSP and Certified Ethical Hacker (CEF) certified. You can follow René on Twitter and LinkedIn.

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