[  690.436288][T13043] netdevsim netdevsim456 eni456np1: renamed from eth0
[  690.456327][T13045] netdevsim netdevsim542 eni542np1: renamed from eth1
[  691.086602][T13030] Could not find device with ifindex 2000 in netnsfd 11
[  691.087430][T13030] Could not find netns with fd: 2000
[  691.087829][T13030] Cannot link a netdevsim to itself
[  691.088279][T13030] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).