[  521.710346] netdevsim netdevsim333 eni333np1: renamed from eth0
[  521.806156] netdevsim netdevsim684 eni684np1: renamed from eth1
[  522.050636] Could not find device with ifindex 2000 in netnsfd 11
[  522.050794] Could not find netns with fd: 2000
[  522.050871] Cannot link a netdevsim to itself
[  522.050964] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).