[  489.233243] netdevsim netdevsim337 eni337np1: renamed from eth0
[  489.233863] netdevsim netdevsim551 eni551np1: renamed from eth1
[  489.328329] Could not find device with ifindex 2000 in netnsfd 11
[  489.328472] Could not find netns with fd: 2000
[  489.328579] Cannot link a netdevsim to itself
[  489.328701] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).