A port channel needs to connect from one device to one device. Stacked switches are logically one device. This means that currently you have one port channel split between two devices. To alleviate this you can get rid of port channel 10, or change one of the connections to be a different port channel. The X-series switches do not support stacking, so with a setup like this you will end up with a physical loop and spanning tree will kick in on one of the connections. When configuring a port channel you will need to add the VLANs to the port channel not the individual ports.
Good day to All I have a bit of confusion going on, possibly just in my head!  I have 2 x M3024 power connects stacked, then I have 2 x X4012 switches which attach to Nutanix.  My problem is that I keep getting a loop when I connect the stack to the second X4012.  See photo for layout.  [IMAGE] Am I correct in using the same Port Group number from both x4012 switches or should it be different? and Do I add the vlans the Port groups or the ports themselves? I have used RSTP on all the connections yet still I get locked out when I connect the X4012 sw2 to the 3024 stack.  The X4012 is quite difficult to work on as most of the config seems to be done in the GUI. Any ideas or script examples would be appreciated.
Port channel confusion