[  513.231055] netdevsim netdevsim439 eni439np1: renamed from eth0
[  513.329045] netdevsim netdevsim553 eni553np1: renamed from eth1
[  513.537884] Could not find device with ifindex 2000 in netnsfd 11
[  513.538033] Could not find netns with fd: 2000
[  513.538114] Cannot link a netdevsim to itself
[  513.538201] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).