[  472.078286] netdevsim netdevsim509 eni509np1: renamed from eth0
[  472.079415] netdevsim netdevsim548 eni548np1: renamed from eth1
[  472.157840] Could not find device with ifindex 2000 in netnsfd 11
[  472.157963] Could not find netns with fd: 2000
[  472.158033] Cannot link a netdevsim to itself
[  472.158082] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).