[  474.255126] netdevsim netdevsim302 eni302np1: renamed from eth0
[  474.256202] netdevsim netdevsim512 eni512np1: renamed from eth0
[  474.338240] Could not find device with ifindex 2000 in netnsfd 11
[  474.338332] Could not find netns with fd: 2000
[  474.338378] Cannot link a netdevsim to itself
[  474.338430] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).