[  485.921220] netdevsim netdevsim609 eni609np1: renamed from eth1
[  486.021814] netdevsim netdevsim379 eni379np1: renamed from eth0
[  486.426506] Could not find device with ifindex 2000 in netnsfd 11
[  486.426647] Could not find netns with fd: 2000
[  486.426732] Cannot link a netdevsim to itself
[  486.426827] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).