[  472.977591] netdevsim netdevsim409 eni409np1: renamed from eth0
[  472.978274] netdevsim netdevsim697 eni697np1: renamed from eth0
[  473.054362] Could not find device with ifindex 2000 in netnsfd 11
[  473.054428] Could not find netns with fd: 2000
[  473.054488] Cannot link a netdevsim to itself
[  473.054556] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).