[  486.658063] netdevsim netdevsim530 eni530np1: renamed from eth1
[  486.754251] netdevsim netdevsim502 eni502np1: renamed from eth0
[  487.003650] Could not find device with ifindex 2000 in netnsfd 11
[  487.003956] Could not find netns with fd: 2000
[  487.004041] Cannot link a netdevsim to itself
[  487.004163] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).