[  520.641858] netdevsim netdevsim308 eni308np1: renamed from eth0
[  520.739652] netdevsim netdevsim610 eni610np1: renamed from eth1
[  520.987298] Could not find device with ifindex 2000 in netnsfd 11
[  520.987463] Could not find netns with fd: 2000
[  520.987548] Cannot link a netdevsim to itself
[  520.987647] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).