[  838.985066][T15789] netdevsim netdevsim407 eni407np1: renamed from eth0
[  838.995366][T15788] netdevsim netdevsim761 eni761np1: renamed from eth1
[  839.640289][T15775] Could not find device with ifindex 2000 in netnsfd 11
[  839.640806][T15775] Could not find netns with fd: 2000
[  839.641160][T15775] Cannot link a netdevsim to itself
[  839.641748][T15775] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).