04-18-2011 03:03 AM - edited 03-06-2019 04:39 PM
Hi,
I need to make sub-interfaces on a c3750-48TS but not vlan interfaces.
I'm currently unable to type any command like that:
----------------------------------------------------------------
MASTER(config)#int FastEthernet1/0/48
MASTER(config-if)#no switchport
MASTER(config-if)#int FastEthernet1/0/48.100
^
% Invalid input detected at '^' marker.
----------------------------------------------------------------
MASTER(config)#int FastEthernet1/0/48.100
^
% Invalid input detected at '^' marker.
----------------------------------------------------------------
My IOS Version is: c3750-ipservicesk9-mz.122-55.SE1
Any idea ?
Thanks
Regards
04-18-2011 03:54 AM
try this
MASTER(config)#int FastEthernet1/0/48.100
04-18-2011 04:23 AM
Hi Noel,
Thanks for your answer...
But if you have a breif look of my previous message, i've already tried in the upper config level.
I've the same error message.
Do you have another idea ?
Regards
04-18-2011 04:48 AM
Hi Eric,
Cisco 3750 port act as a routed port and behaves like a regular router interface, except that it does not support VLAN subinterfaces
Thanks,
kasi
04-18-2011 05:26 AM
i have a 3750 infront on me running ipbase amd it handles sub - interfaces.
04-18-2011 05:28 AM
fine,
can you tell me the version of your IOS ?
Does your switch accept the IP vrf XXX command ?
Thanks
04-18-2011 05:46 AM
Sub-Interfaces are not supported on 3750 switches. You would have to create a trunk port and a Layer 3 VLAN Interface.
A routed port is a physical port that acts like a port on a router; it does not have to be connected to a router. A routed port is not associated with a particular VLAN, as is an access port. A routed port behaves like a regular router interface, except that it does not support VLAN subinterfaces.
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