[  824.188522][T15796] netdevsim netdevsim437 eni437np1: renamed from eth0
[  824.216588][T15798] netdevsim netdevsim750 eni750np1: renamed from eth1
[  824.812264][T15784] Could not find device with ifindex 2000 in netnsfd 11
[  824.812954][T15784] Could not find netns with fd: 2000
[  824.813434][T15784] Cannot link a netdevsim to itself
[  824.813971][T15784] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).