[  561.729986] netdevsim netdevsim549 eni549np1: renamed from eth1
[  561.828010] netdevsim netdevsim416 eni416np1: renamed from eth0
[  562.052036] Could not find device with ifindex 2000 in netnsfd 11
[  562.052274] Could not find netns with fd: 2000
[  562.052365] Cannot link a netdevsim to itself
[  562.052484] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).