[  520.850958] netdevsim netdevsim658 eni658np1: renamed from eth1
[  520.948356] netdevsim netdevsim493 eni493np1: renamed from eth0
[  521.208598] Could not find device with ifindex 2000 in netnsfd 11
[  521.208756] Could not find netns with fd: 2000
[  521.208828] Cannot link a netdevsim to itself
[  521.208915] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).