[  488.184246] netdevsim netdevsim456 eni456np1: renamed from eth0
[  488.281696] netdevsim netdevsim605 eni605np1: renamed from eth1
[  488.485167] Could not find device with ifindex 2000 in netnsfd 11
[  488.485454] Could not find netns with fd: 2000
[  488.485560] Cannot link a netdevsim to itself
[  488.485658] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).