[  487.142106] netdevsim netdevsim530 eni530np1: renamed from eth1
[  487.241950] netdevsim netdevsim390 eni390np1: renamed from eth0
[  487.680896] Could not find device with ifindex 2000 in netnsfd 11
[  487.681057] Could not find netns with fd: 2000
[  487.681135] Cannot link a netdevsim to itself
[  487.681226] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).