[  492.486759] netdevsim netdevsim563 eni563np1: renamed from eth1
[  492.582682] netdevsim netdevsim436 eni436np1: renamed from eth0
[  492.827392] Could not find device with ifindex 2000 in netnsfd 11
[  492.827787] Could not find netns with fd: 2000
[  492.827893] Cannot link a netdevsim to itself
[  492.828012] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).