If you have multiple interfaces that need to be configured with the same settings, you can use the interface range command to specify a range of interfaces to which the subsequent commands will be applied.
For example, let’s say that interfaces Fa0/4, Fa0/5, Fa0/6, Fa0/7, and Fa0/8 need to have the same description. We don’t need to enter the subinterface mode of each interface separately to configure the description – we can use the interface range Fa0/4 – 8 command and then execute the description command:
SW1(config)#interface range Fa0/4 - 8 SW1(config-if-range)#description END_HOSTS
The description parameter will be applied to all interfaces in the specified range:
SW1#show running-config Building configuration... ... Current configuration : 1157 bytes interface FastEthernet0/3 ! interface FastEthernet0/4 description END_HOSTS ! interface FastEthernet0/5 description END_HOSTS ! interface FastEthernet0/6 description END_HOSTS ! interface FastEthernet0/7 description END_HOSTS ! interface FastEthernet0/8 description END_HOSTS ! interface FastEthernet0/9 ! ....