[  523.951917] netdevsim netdevsim316 eni316np1: renamed from eth0
[  524.049353] netdevsim netdevsim750 eni750np1: renamed from eth1
[  524.260079] Could not find device with ifindex 2000 in netnsfd 11
[  524.260263] Could not find netns with fd: 2000
[  524.260357] Cannot link a netdevsim to itself
[  524.260497] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).