[  521.221277] netdevsim netdevsim278 eni278np1: renamed from eth0
[  521.318666] netdevsim netdevsim603 eni603np1: renamed from eth1
[  521.557280] Could not find device with ifindex 2000 in netnsfd 11
[  521.557470] Could not find netns with fd: 2000
[  521.557557] Cannot link a netdevsim to itself
[  521.557659] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).