[  488.734910] netdevsim netdevsim311 eni311np1: renamed from eth0
[  488.831482] netdevsim netdevsim756 eni756np1: renamed from eth1
[  489.089176] Could not find device with ifindex 2000 in netnsfd 11
[  489.089535] Could not find netns with fd: 2000
[  489.089671] Cannot link a netdevsim to itself
[  489.089823] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).