[  485.803195] netdevsim netdevsim509 eni509np1: renamed from eth0
[  485.803941] netdevsim netdevsim714 eni714np1: renamed from eth1
[  485.895050] Could not find device with ifindex 2000 in netnsfd 11
[  485.895187] Could not find netns with fd: 2000
[  485.895304] Cannot link a netdevsim to itself
[  485.895432] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).