[  781.196302][T14458] netdevsim netdevsim393 eni393np1: renamed from eth0
[  781.220060][T14460] netdevsim netdevsim684 eni684np1: renamed from eth1
[  781.916505][T14446] Could not find device with ifindex 2000 in netnsfd 11
[  781.917153][T14446] Could not find netns with fd: 2000
[  781.917612][T14446] Cannot link a netdevsim to itself
[  781.918052][T14446] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).