Enable Portfast on a Cisco Network Interface

Created On: 14 September 2022

Written by: Ben

Enter config terminal:

config t

Select the interface you need. Normally Fast Ethernet Ports:

interface FastEthernet1

Enable Portfast:

spanning-tree portfast
exit
exit

Save the new config:

copy run start

To perform the operation in bulk you can select the full range of Fast Ethernet ports and thenapply portfast to them all.

Enter config terminal:

conf t

Select the interface range:

interface range fa0 - x

Where x is the last port and 0 is the first.

Enable portfast:

spanning-tree portfast

Exit:

end

Save the config:

copy run start

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