[  493.519715] netdevsim netdevsim500 eni500np1: renamed from eth0
[  493.616167] netdevsim netdevsim708 eni708np1: renamed from eth1
[  493.850173] Could not find device with ifindex 2000 in netnsfd 11
[  493.850576] Could not find netns with fd: 2000
[  493.850709] Cannot link a netdevsim to itself
[  493.850846] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).