[  485.334262] netdevsim netdevsim453 eni453np1: renamed from eth0
[  485.335080] netdevsim netdevsim541 eni541np1: renamed from eth1
[  485.419952] Could not find device with ifindex 2000 in netnsfd 11
[  485.420085] Could not find netns with fd: 2000
[  485.420186] Cannot link a netdevsim to itself
[  485.420305] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).