[  513.513665] netdevsim netdevsim712 eni712np1: renamed from eth1
[  513.611561] netdevsim netdevsim356 eni356np1: renamed from eth0
[  513.808540] Could not find device with ifindex 2000 in netnsfd 11
[  513.808681] Could not find netns with fd: 2000
[  513.808751] Cannot link a netdevsim to itself
[  513.808853] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).