[  487.530081] netdevsim netdevsim300 eni300np1: renamed from eth0
[  487.530574] netdevsim netdevsim754 eni754np1: renamed from eth1
[  487.623135] Could not find device with ifindex 2000 in netnsfd 11
[  487.623309] Could not find netns with fd: 2000
[  487.623445] Cannot link a netdevsim to itself
[  487.623589] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).