[  822.725656][T14789] netdevsim netdevsim331 eni331np1: renamed from eth0
[  822.752320][T14792] netdevsim netdevsim639 eni639np1: renamed from eth1
[  823.410548][T14777] Could not find device with ifindex 2000 in netnsfd 11
[  823.411378][T14777] Could not find netns with fd: 2000
[  823.411777][T14777] Cannot link a netdevsim to itself
[  823.412224][T14777] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).