[  522.048702] netdevsim netdevsim686 eni686np1: renamed from eth1
[  522.144434] netdevsim netdevsim319 eni319np1: renamed from eth0
[  522.413560] Could not find device with ifindex 2000 in netnsfd 11
[  522.413794] Could not find netns with fd: 2000
[  522.413903] Cannot link a netdevsim to itself
[  522.414038] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).