[  523.598484] netdevsim netdevsim541 eni541np1: renamed from eth1
[  523.696664] netdevsim netdevsim325 eni325np1: renamed from eth0
[  523.931152] Could not find device with ifindex 2000 in netnsfd 11
[  523.931399] Could not find netns with fd: 2000
[  523.931510] Cannot link a netdevsim to itself
[  523.931668] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).