[  524.518292] netdevsim netdevsim527 eni527np1: renamed from eth1
[  524.615139] netdevsim netdevsim325 eni325np1: renamed from eth0
[  524.886978] Could not find device with ifindex 2000 in netnsfd 11
[  524.887214] Could not find netns with fd: 2000
[  524.887318] Cannot link a netdevsim to itself
[  524.887460] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).