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New Member

what does Command rejected: Fa0/1 not a switching port mean on a 3550?

Trying setup a 3550-48.

The following command::

int fa0/1

switchport mode dynamic desirable

Is responded to with:

Command rejected: Fa0/1 not a switching port.

Command rejected: Fa0/1 not a switching port.

6 REPLIES

Re: what does Command rejected: Fa0/1 not a switching port mean

It looks like the f0/1 is configured as router port. I believe all the ports in 3550 switch are switchports by default. Someone may have configured 'no switchport' under f0/1. Enter switchport under f0/1 mode and you should be able to configure switchport commands under this int.

HTH

Sundar

New Member

Re: what does Command rejected: Fa0/1 not a switching port mean

configure the port as switch port and try this command.

MLS-1-1(config)#int Fa 1/1

MLS-1-1(config-if)# switchport

MLS-1-1(config-if)#

New Member

Re: what does Command rejected: Fa0/1 not a switching port mean

Thanks,

That was the fix. I had overlooked the obvious.

Re: what does Command rejected: Fa0/1 not a switching port mean

yes in layer 3 switches... you can use any port as layer 2 as well as layer 3...

normally ports are layer 2 port but if you fire the command "NO SWITCHPORT" under any interface configuration mode then that port will be come layer3 port... and to convert that layer 3 port back into layer 2 port you need to fire the command "SWITCHPORT" under perticular interface...

regards

Devang

Purple

Re: what does Command rejected: Fa0/1 not a switching port mean

Just do a show interface status command and it will tell you whether it is a switchport or a routed port.

New Member

Re: what does Command rejected: Fa0/1 not a switching port mean

Hi,

the only thing I can think of that the port is configured as a L3 port. That is,

no switchport

ip address ....

commnad(s) present in the running config on the port ?

Regards,

Laszlo

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