[  483.210127] netdevsim netdevsim437 eni437np1: renamed from eth0
[  483.210577] netdevsim netdevsim764 eni764np1: renamed from eth1
[  483.293518] Could not find device with ifindex 2000 in netnsfd 11
[  483.293607] Could not find netns with fd: 2000
[  483.293652] Cannot link a netdevsim to itself
[  483.293703] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).