[  486.539230] netdevsim netdevsim510 eni510np1: renamed from eth0
[  486.640399] netdevsim netdevsim562 eni562np1: renamed from eth1
[  486.967944] Could not find device with ifindex 2000 in netnsfd 11
[  486.968110] Could not find netns with fd: 2000
[  486.968203] Cannot link a netdevsim to itself
[  486.968332] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).