[  520.758449] netdevsim netdevsim402 eni402np1: renamed from eth0
[  520.854453] netdevsim netdevsim699 eni699np1: renamed from eth1
[  521.072178] Could not find device with ifindex 2000 in netnsfd 11
[  521.072356] Could not find netns with fd: 2000
[  521.072447] Cannot link a netdevsim to itself
[  521.072551] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).