[  482.038488] netdevsim netdevsim509 eni509np1: renamed from eth0
[  482.139700] netdevsim netdevsim652 eni652np1: renamed from eth1
[  482.493368] Could not find device with ifindex 2000 in netnsfd 11
[  482.493507] Could not find netns with fd: 2000
[  482.493572] Cannot link a netdevsim to itself
[  482.493653] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).