[  765.747382][T14573] netdevsim netdevsim497 eni497np1: renamed from eth0
[  765.758397][T14575] netdevsim netdevsim656 eni656np1: renamed from eth1
[  766.334948][T14561] Could not find device with ifindex 2000 in netnsfd 11
[  766.336973][T14561] Could not find netns with fd: 2000
[  766.337476][T14561] Cannot link a netdevsim to itself
[  766.338006][T14561] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).