I have an IBM chassis with 3 X240 servers with vmware ESXi 6, in the rear of the chassis I have 2 CN9043 switch with internal ports (servers side) and external ports to Extreme Summit switch with RJ45 ports, When the traffic go out from the host ...
Thank you Brandon,
I resolved it by using another mode in the IBM switch (UFP) that does not double tag the frame and then i can see the vSwitch tag in the Extreme switch.
Thank you.