[  486.764878] netdevsim netdevsim530 eni530np1: renamed from eth1
[  486.861752] netdevsim netdevsim345 eni345np1: renamed from eth0
[  487.067649] Could not find device with ifindex 2000 in netnsfd 11
[  487.067920] Could not find netns with fd: 2000
[  487.068003] Cannot link a netdevsim to itself
[  487.068114] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).