[  859.000429][T15801] netdevsim netdevsim420 eni420np1: renamed from eth0
[  859.016887][T15803] netdevsim netdevsim668 eni668np1: renamed from eth1
[  859.804694][T15789] Could not find device with ifindex 2000 in netnsfd 11
[  859.805372][T15789] Could not find netns with fd: 2000
[  859.805840][T15789] Cannot link a netdevsim to itself
[  859.807152][T15789] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).