[  777.968541][T14756] netdevsim netdevsim471 eni471np1: renamed from eth0
[  777.974327][T14758] netdevsim netdevsim561 eni561np1: renamed from eth1
[  778.597024][T14744] Could not find device with ifindex 2000 in netnsfd 11
[  778.597874][T14744] Could not find netns with fd: 2000
[  778.598247][T14744] Cannot link a netdevsim to itself
[  778.598676][T14744] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).