[  545.288201] netdevsim netdevsim568 eni568np1: renamed from eth1
[  545.388848] netdevsim netdevsim263 eni263np1: renamed from eth0
[  545.788218] Could not find device with ifindex 2000 in netnsfd 11
[  545.788388] Could not find netns with fd: 2000
[  545.788475] Cannot link a netdevsim to itself
[  545.788576] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).