Interface macro in Cisco IOS Switches

I often use the interface-range command in Cisco switches while configure multiple ports. Especially, in an environment like Offshore Development Centers where there are more number of Vlans each for individual customers.

Last week, I discovered a long existing command define interface-range <macro_name>. Using this command you can group multiple interface of a switch together and address them by a name.

(config)#define interface-range UPLINKS FastEthernet0/47, FastEthernet0/48

(config)#define interface-range CITI_VLAN123 FastEthernet0/1 – 10

(config)#define interface-range IS_VLAN124 FastEthernet0/11 – 20

(config)#interface range macro UPLINKS

(config-if-range)#switchport mode trunk

(config-if-range)#switchport trunk encapsulation dot1q

(config-if-range)#switchport trunk allowed vlan 1,123,124

(config-if-range)#no shutdown

(config-if-range)#end

(config)#interface range macro IS_VLAN124

(config-if-range)#description IS_User_Ports

(config-if-range)#switchport mode access

(config-if-range)#switchport access vlan 124

(config-if-range)# spanning-tree portfast

(config-if-range)# spanning-tree bpduguard enable

(config-if-range)#no shutdown

Had I discovered this command couple of years back, would have been very helpful. Anyways, better late than never.