[  485.945068] netdevsim netdevsim320 eni320np1: renamed from eth0
[  485.945423] netdevsim netdevsim542 eni542np1: renamed from eth1
[  486.035659] Could not find device with ifindex 2000 in netnsfd 11
[  486.035746] Could not find netns with fd: 2000
[  486.035802] Cannot link a netdevsim to itself
[  486.035869] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).