[  849.925302][T15785] netdevsim netdevsim381 eni381np1: renamed from eth0
[  849.935525][T15787] netdevsim netdevsim536 eni536np1: renamed from eth1
[  850.531680][T15772] Could not find device with ifindex 2000 in netnsfd 11
[  850.532298][T15772] Could not find netns with fd: 2000
[  850.532767][T15772] Cannot link a netdevsim to itself
[  850.533330][T15772] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).