[  485.750560] netdevsim netdevsim616 eni616np1: renamed from eth1
[  485.750799] netdevsim netdevsim398 eni398np1: renamed from eth0
[  485.845675] Could not find device with ifindex 2000 in netnsfd 11
[  485.845768] Could not find netns with fd: 2000
[  485.845814] Cannot link a netdevsim to itself
[  485.845864] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).