How to configure multiple Cisco switch ports at the same time

Contributed by Headhunter September 28, 2004  
Tagged: Cisco switch

Using the following command will save you time when configuring multiple ports with the same characteristics.

To configure multiple switchports at the same time we use the interface range configuration command.
Example:
Switch(config)#interface range fastethernet0/1 – 20
Switch(config-if-range)#speed 100
Switch(config-if-range)#duplex full

The previous example will hardcode the speed and duplex settings on switchports 1 to 20. But this could well have been assinging them all to the same vlan.

We can even define multiple ranges.
Example
Switch(config)#interface range fastethernet0/1 – 4 , fastethernet0/10 – 15

Notice the spaces between the ranges.

The interface range command works with vlan, port-channel, fastethernet and gigabitethernet interfaces.