[  756.259849][T14559] netdevsim netdevsim302 eni302np1: renamed from eth0
[  756.272297][T14561] netdevsim netdevsim621 eni621np1: renamed from eth1
[  756.856765][T14547] Could not find device with ifindex 2000 in netnsfd 11
[  756.857793][T14547] Could not find netns with fd: 2000
[  756.858360][T14547] Cannot link a netdevsim to itself
[  756.858912][T14547] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).