[  715.401354][T13056] netdevsim netdevsim404 eni404np1: renamed from eth0
[  715.428089][T13058] netdevsim netdevsim712 eni712np1: renamed from eth1
[  716.139152][T13043] Could not find device with ifindex 2000 in netnsfd 11
[  716.140147][T13043] Could not find netns with fd: 2000
[  716.140690][T13043] Cannot link a netdevsim to itself
[  716.141229][T13043] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).