[  489.305691] netdevsim netdevsim584 eni584np1: renamed from eth1
[  489.402587] netdevsim netdevsim431 eni431np1: renamed from eth0
[  489.613627] Could not find device with ifindex 2000 in netnsfd 11
[  489.613865] Could not find netns with fd: 2000
[  489.613959] Cannot link a netdevsim to itself
[  489.614060] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).