[  757.339119][T14545] netdevsim netdevsim409 eni409np1: renamed from eth0
[  757.349004][T14546] netdevsim netdevsim661 eni661np1: renamed from eth1
[  757.895016][T14533] Could not find device with ifindex 2000 in netnsfd 11
[  757.895840][T14533] Could not find netns with fd: 2000
[  757.896191][T14533] Cannot link a netdevsim to itself
[  757.896579][T14533] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).