[  456.113110] netdevsim netdevsim486 eni486np1: renamed from eth0
[  456.114225] netdevsim netdevsim762 eni762np1: renamed from eth1
[  456.211592] Could not find device with ifindex 2000 in netnsfd 11
[  456.211694] Could not find netns with fd: 2000
[  456.211738] Cannot link a netdevsim to itself
[  456.211788] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).