I have a network that was set to MTU 9000 via xe network-param-set MTU=9000. The problem is all the PIFs inside this network are still on MTU 1500. Obviously, it causes issues when I want to communicate with VMs inside this network.
This was working on 7.0, and even survive an upgrade to 7.1. But on a freshly installed pool on 7.1, the network got indeed the MTU displayed at 9000, but the PIF still stick on 1500.
What should I do to force the PIF to get the right MTU?