[  490.364289] netdevsim netdevsim512 eni512np1: renamed from eth1
[  490.460977] netdevsim netdevsim378 eni378np1: renamed from eth0
[  490.662422] Could not find device with ifindex 2000 in netnsfd 11
[  490.662639] Could not find netns with fd: 2000
[  490.662713] Cannot link a netdevsim to itself
[  490.662799] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).