[  505.107003] netdevsim netdevsim581 eni581np1: renamed from eth1
[  505.204577] netdevsim netdevsim326 eni326np1: renamed from eth0
[  505.377386] Could not find device with ifindex 2000 in netnsfd 11
[  505.377551] Could not find netns with fd: 2000
[  505.377633] Cannot link a netdevsim to itself
[  505.377728] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).