3750 PVLAN Trunk Promiscuous

Unanswered Question
Apr 8th, 2009

Anyone know if it is possible to make a 3750 (or 3560) trunk port promiscuous, like the 4500's can? I want to trunk between the 3750 & an ASR1002 router and make the ASR the L3 gateway for the private VLANs off the 3750 (3560). I've tried a few flavours of IOS, but none seem to have the ability to use "switchport mode trunk promiscuous" on the trunk port.

I have this problem too.
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dario.didio Wed, 04/08/2009 - 05:23


this is not possible and it will not be implemented in the near future. I have posed this question for a C3560-E switch, but did also some research for a C3750.

Only switch that supports this is a C4500, C4900 and a ME4900.

Because I needed only 2 VLANs bridged to my access switch with PVLANs, I used 2 cables, both configured as promiscuous for a specific private VLAN.




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