[  489.114093] netdevsim netdevsim290 eni290np1: renamed from eth0
[  489.114618] netdevsim netdevsim512 eni512np1: renamed from eth1
[  489.208919] Could not find device with ifindex 2000 in netnsfd 11
[  489.209022] Could not find netns with fd: 2000
[  489.209075] Cannot link a netdevsim to itself
[  489.209131] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).