[  485.862724] netdevsim netdevsim509 eni509np1: renamed from eth0
[  485.963751] netdevsim netdevsim716 eni716np1: renamed from eth1
[  486.320534] Could not find device with ifindex 2000 in netnsfd 11
[  486.320731] Could not find netns with fd: 2000
[  486.320835] Cannot link a netdevsim to itself
[  486.320975] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).