[  521.641429] netdevsim netdevsim430 eni430np1: renamed from eth0
[  521.737646] netdevsim netdevsim700 eni700np1: renamed from eth1
[  521.982485] Could not find device with ifindex 2000 in netnsfd 11
[  521.982690] Could not find netns with fd: 2000
[  521.982782] Cannot link a netdevsim to itself
[  521.982902] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).