[  493.013351] netdevsim netdevsim650 eni650np1: renamed from eth1
[  493.108915] netdevsim netdevsim302 eni302np1: renamed from eth0
[  493.359714] Could not find device with ifindex 2000 in netnsfd 11
[  493.360001] Could not find netns with fd: 2000
[  493.360102] Cannot link a netdevsim to itself
[  493.360270] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).