[  826.746100][T15836] netdevsim netdevsim297 eni297np1: renamed from eth0
[  826.768754][T15833] netdevsim netdevsim684 eni684np1: renamed from eth1
[  827.407401][T15822] Could not find device with ifindex 2000 in netnsfd 11
[  827.408031][T15822] Could not find netns with fd: 2000
[  827.408503][T15822] Cannot link a netdevsim to itself
[  827.409020][T15822] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).