03-02-2012 03:07 PM - edited 03-07-2019 05:18 AM
Hello,
I'm trying to create a subinterface on the WS-C4507R+E (IOS 15.0(2)SG2, Sup 6L-E 10GE) but keep getting invalid input.
switch(config)#int g5/11
switch(config-if)#no switchport
switch(config-if)#int g5/11.20
^
% Invalid input detected at '^' marker.
switch(config)#
Is this feature not supported on this switch or is it the IOS? IOS is cat4500e-entservicesk9-mz.150-2.SG2. I can configure other routing such as EIGRP without any problems. Is there any workaround? I need to create sub-interfaces for VRF lite.
Thanks for any help.
VP
Solved! Go to Solution.
03-02-2012 03:09 PM
Hello,
On most calayst switching platforms, you cannot create sub-interfaces. Instead replace the sub-interface with interface vlans (SVIs). The physical interface can be a trunk link carrying all the desired vlans.
HTH
PD
03-02-2012 03:57 PM
Unfortunatelly, no sub interfaces can be created on catalyst switches
Sent from Cisco Technical Support iPhone App
03-03-2012 04:36 AM
I'm doing this on a 3550 using SVI's that are bound to different VRFs. The physical interface is trunked as per usual (switchport mode trunk). Traffic then hits the SVIs for the next hop.
03-02-2012 03:08 PM
ps... I also tried with port-channel subinterfaces and same result.
Thanks.
03-02-2012 03:09 PM
Hello,
On most calayst switching platforms, you cannot create sub-interfaces. Instead replace the sub-interface with interface vlans (SVIs). The physical interface can be a trunk link carrying all the desired vlans.
HTH
PD
03-02-2012 03:57 PM
Unfortunatelly, no sub interfaces can be created on catalyst switches
Sent from Cisco Technical Support iPhone App
03-02-2012 06:26 PM
Maybe you can explain what you are trying to accomplish. If you are just trying to trunk a link you do not use subinterfaces on a Catalyst switch . Do a search on the main cisco page on how to create a trunk for the 4500 series.
03-02-2012 08:30 PM
I'm not trying to create a trunk. Since the 6500 series supports subinterfaces I expected the same on the 4500 series for L3. I'm trying to create subinterfaces for VRF lite routing multiple VLANs over one physical interface.
Thanks.
VP
03-03-2012 04:36 AM
I'm doing this on a 3550 using SVI's that are bound to different VRFs. The physical interface is trunked as per usual (switchport mode trunk). Traffic then hits the SVIs for the next hop.
03-03-2012 07:56 PM
I was trying to avoid L3 over L2 but looks like this is the only option available.
Thanks for the responses.
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