[  485.934842] netdevsim netdevsim470 eni470np1: renamed from eth0
[  486.036632] netdevsim netdevsim593 eni593np1: renamed from eth1
[  486.364548] Could not find device with ifindex 2000 in netnsfd 11
[  486.364703] Could not find netns with fd: 2000
[  486.364796] Cannot link a netdevsim to itself
[  486.364911] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).