[  800.148511][T14581] netdevsim netdevsim312 eni312np1: renamed from eth0
[  800.169078][T14583] netdevsim netdevsim603 eni603np1: renamed from eth1
[  800.757146][T14569] Could not find device with ifindex 2000 in netnsfd 11
[  800.757942][T14569] Could not find netns with fd: 2000
[  800.758336][T14569] Cannot link a netdevsim to itself
[  800.758782][T14569] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).