[  758.812871][T14570] netdevsim netdevsim438 eni438np1: renamed from eth0
[  758.826307][T14572] netdevsim netdevsim623 eni623np1: renamed from eth1
[  759.427491][T14558] Could not find device with ifindex 2000 in netnsfd 11
[  759.428080][T14558] Could not find netns with fd: 2000
[  759.428583][T14558] Cannot link a netdevsim to itself
[  759.429110][T14558] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).