[  490.523133] netdevsim netdevsim400 eni400np1: renamed from eth0
[  490.624072] netdevsim netdevsim711 eni711np1: renamed from eth1
[  490.991472] Could not find device with ifindex 2000 in netnsfd 11
[  490.991611] Could not find netns with fd: 2000
[  490.991680] Cannot link a netdevsim to itself
[  490.991777] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).