[  772.764798][T14645] netdevsim netdevsim397 eni397np1: renamed from eth0
[  772.782101][T14647] netdevsim netdevsim664 eni664np1: renamed from eth1
[  773.502778][T14633] Could not find device with ifindex 2000 in netnsfd 11
[  773.503653][T14633] Could not find netns with fd: 2000
[  773.504266][T14633] Cannot link a netdevsim to itself
[  773.505392][T14633] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).