[  492.080684] netdevsim netdevsim681 eni681np1: renamed from eth1
[  492.177816] netdevsim netdevsim269 eni269np1: renamed from eth0
[  492.401642] Could not find device with ifindex 2000 in netnsfd 11
[  492.401932] Could not find netns with fd: 2000
[  492.402038] Cannot link a netdevsim to itself
[  492.402146] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).