[  606.795620][ T9941] netdevsim netdevsim734 eni734np1: renamed from eth1
[  606.800078][ T9943] netdevsim netdevsim448 eni448np1: renamed from eth0
[  607.396775][ T9930] Could not find device with ifindex 2000 in netnsfd 11
[  607.397383][ T9930] Could not find netns with fd: 2000
[  607.397749][ T9930] Cannot link a netdevsim to itself
[  607.398172][ T9930] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).