[  485.488132] netdevsim netdevsim302 eni302np1: renamed from eth0
[  485.488506] netdevsim netdevsim623 eni623np1: renamed from eth1
[  485.575462] Could not find device with ifindex 2000 in netnsfd 11
[  485.575580] Could not find netns with fd: 2000
[  485.575629] Cannot link a netdevsim to itself
[  485.575683] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).