[  834.073386][T15772] netdevsim netdevsim320 eni320np1: renamed from eth0
[  834.093819][T15775] netdevsim netdevsim615 eni615np1: renamed from eth1
[  834.724929][T15760] Could not find device with ifindex 2000 in netnsfd 11
[  834.725600][T15760] Could not find netns with fd: 2000
[  834.726045][T15760] Cannot link a netdevsim to itself
[  834.726576][T15760] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).