[  522.219985] netdevsim netdevsim557 eni557np1: renamed from eth1
[  522.318008] netdevsim netdevsim352 eni352np1: renamed from eth0
[  522.535641] Could not find device with ifindex 2000 in netnsfd 11
[  522.535828] Could not find netns with fd: 2000
[  522.535942] Cannot link a netdevsim to itself
[  522.536059] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).