[  472.443010] netdevsim netdevsim386 eni386np1: renamed from eth0
[  472.443427] netdevsim netdevsim534 eni534np1: renamed from eth1
[  472.513136] Could not find device with ifindex 2000 in netnsfd 11
[  472.513234] Could not find netns with fd: 2000
[  472.513283] Cannot link a netdevsim to itself
[  472.513333] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).