[  488.798869] netdevsim netdevsim642 eni642np1: renamed from eth1
[  488.895620] netdevsim netdevsim293 eni293np1: renamed from eth0
[  489.126856] Could not find device with ifindex 2000 in netnsfd 11
[  489.127133] Could not find netns with fd: 2000
[  489.127222] Cannot link a netdevsim to itself
[  489.127322] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).