[  487.001469] netdevsim netdevsim549 eni549np1: renamed from eth1
[  487.001605] netdevsim netdevsim502 eni502np1: renamed from eth0
[  487.070910] Could not find device with ifindex 2000 in netnsfd 11
[  487.070983] Could not find netns with fd: 2000
[  487.071025] Cannot link a netdevsim to itself
[  487.071068] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).