[  486.545157] netdevsim netdevsim319 eni319np1: renamed from eth0
[  486.545783] netdevsim netdevsim613 eni613np1: renamed from eth1
[  486.640157] Could not find device with ifindex 2000 in netnsfd 11
[  486.640247] Could not find netns with fd: 2000
[  486.640291] Cannot link a netdevsim to itself
[  486.640343] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).