[  520.582200] netdevsim netdevsim745 eni745np1: renamed from eth1
[  520.679813] netdevsim netdevsim313 eni313np1: renamed from eth0
[  520.912430] Could not find device with ifindex 2000 in netnsfd 11
[  520.912631] Could not find netns with fd: 2000
[  520.912729] Cannot link a netdevsim to itself
[  520.912865] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).