[  472.406186] netdevsim netdevsim334 eni334np1: renamed from eth0
[  472.407274] netdevsim netdevsim649 eni649np1: renamed from eth1
[  472.483461] Could not find device with ifindex 2000 in netnsfd 11
[  472.483556] Could not find netns with fd: 2000
[  472.483602] Cannot link a netdevsim to itself
[  472.483651] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).