[  743.593935][T14444] netdevsim netdevsim506 eni506np1: renamed from eth0
[  743.604276][T14446] netdevsim netdevsim563 eni563np1: renamed from eth1
[  744.186994][T14432] Could not find device with ifindex 2000 in netnsfd 11
[  744.187625][T14432] Could not find netns with fd: 2000
[  744.189927][T14432] Cannot link a netdevsim to itself
[  744.190632][T14432] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).