Crashed my Node with Physical NIC what was the real cause?

I want to know what really made my node crash including Ceph.

Network:
Node got one physical interface

Ceph is running on VLAN eth0.1001
Incus on physical eth0

what I did I gave eth0 to my instance as “Physical” and with starting the instart that node crashed. Now my question is If I had Ceph on eth0 (without VLAN) and gave eth0.1001 as physical to the instance then Ceph wouldn’t have crashed?