[  520.656521] netdevsim netdevsim533 eni533np1: renamed from eth1
[  520.753675] netdevsim netdevsim371 eni371np1: renamed from eth0
[  521.013291] Could not find device with ifindex 2000 in netnsfd 11
[  521.013490] Could not find netns with fd: 2000
[  521.013589] Cannot link a netdevsim to itself
[  521.013697] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).