[  521.517842] netdevsim netdevsim731 eni731np1: renamed from eth1
[  521.616178] netdevsim netdevsim365 eni365np1: renamed from eth0
[  521.841075] Could not find device with ifindex 2000 in netnsfd 11
[  521.841310] Could not find netns with fd: 2000
[  521.841430] Cannot link a netdevsim to itself
[  521.841574] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).