[  484.288330] netdevsim netdevsim446 eni446np1: renamed from eth0
[  484.389660] netdevsim netdevsim512 eni512np1: renamed from eth1
[  484.724349] Could not find device with ifindex 2000 in netnsfd 11
[  484.724483] Could not find netns with fd: 2000
[  484.724584] Cannot link a netdevsim to itself
[  484.724675] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).