I have a 4500X VSS acting as the core L3 switching in our data center. The VSS is connected via 4 port 10g port channel to a pair of Nexus 9272s using vPC. The MTU is currently 1500 but needs to be jumbo frames.
The system setting for jumbo frames on the Nexus is 9216.
Can I set the MTU size dynamically on the port-channel on the 4500X side and the Nexus side without taking the channel down?