[  515.442157] netdevsim netdevsim347 eni347np1: renamed from eth0
[  515.539784] netdevsim netdevsim646 eni646np1: renamed from eth1
[  515.736147] Could not find device with ifindex 2000 in netnsfd 11
[  515.736312] Could not find netns with fd: 2000
[  515.736401] Cannot link a netdevsim to itself
[  515.736529] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).