[  520.804942] netdevsim netdevsim434 eni434np1: renamed from eth0
[  520.901596] netdevsim netdevsim660 eni660np1: renamed from eth1
[  521.122778] Could not find device with ifindex 2000 in netnsfd 11
[  521.122947] Could not find netns with fd: 2000
[  521.123018] Cannot link a netdevsim to itself
[  521.123125] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).