[  458.772178] netdevsim netdevsim310 eni310np1: renamed from eth0
[  458.773643] netdevsim netdevsim541 eni541np1: renamed from eth1
[  458.865477] Could not find device with ifindex 2000 in netnsfd 11
[  458.865573] Could not find netns with fd: 2000
[  458.865622] Cannot link a netdevsim to itself
[  458.865677] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).