[  777.456942][T16669] netdevsim netdevsim274 eni274np1: renamed from eth0
[  777.477709][T16671] netdevsim netdevsim553 eni553np1: renamed from eth1
[  778.065825][T16657] Could not find device with ifindex 2000 in netnsfd 11
[  778.066485][T16657] Could not find netns with fd: 2000
[  778.067051][T16657] Cannot link a netdevsim to itself
[  778.067651][T16657] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).