[  455.618653] netdevsim netdevsim472 eni472np1: renamed from eth0
[  455.619441] netdevsim netdevsim644 eni644np1: renamed from eth1
[  455.711556] Could not find device with ifindex 2000 in netnsfd 11
[  455.711670] Could not find netns with fd: 2000
[  455.711728] Cannot link a netdevsim to itself
[  455.711798] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).