[  764.490300][T14575] netdevsim netdevsim340 eni340np1: renamed from eth0
[  764.496134][T14577] netdevsim netdevsim639 eni639np1: renamed from eth1
[  765.065458][T14563] Could not find device with ifindex 2000 in netnsfd 11
[  765.066324][T14563] Could not find netns with fd: 2000
[  765.066671][T14563] Cannot link a netdevsim to itself
[  765.067290][T14563] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).