[  819.656722][T14628] netdevsim netdevsim336 eni336np1: renamed from eth0
[  819.678869][T14630] netdevsim netdevsim701 eni701np1: renamed from eth1
[  820.305453][T14616] Could not find device with ifindex 2000 in netnsfd 11
[  820.306447][T14616] Could not find netns with fd: 2000
[  820.306865][T14616] Cannot link a netdevsim to itself
[  820.309563][T14616] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).