[  490.830296] netdevsim netdevsim306 eni306np1: renamed from eth0
[  490.831407] netdevsim netdevsim531 eni531np1: renamed from eth0
[  490.926221] Could not find device with ifindex 2000 in netnsfd 11
[  490.926337] Could not find netns with fd: 2000
[  490.926387] Cannot link a netdevsim to itself
[  490.926441] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).