[  487.831007] netdevsim netdevsim506 eni506np1: renamed from eth0
[  487.831709] netdevsim netdevsim762 eni762np1: renamed from eth1
[  487.904613] Could not find device with ifindex 2000 in netnsfd 11
[  487.904769] Could not find netns with fd: 2000
[  487.904878] Cannot link a netdevsim to itself
[  487.904997] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).