[  484.546243] netdevsim netdevsim724 eni724np1: renamed from eth1
[  484.643360] netdevsim netdevsim409 eni409np1: renamed from eth0
[  484.848431] Could not find device with ifindex 2000 in netnsfd 11
[  484.848714] Could not find netns with fd: 2000
[  484.848787] Cannot link a netdevsim to itself
[  484.848872] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).