[  891.611950][T15799] netdevsim netdevsim312 eni312np1: renamed from eth0
[  891.653000][T15801] netdevsim netdevsim644 eni644np1: renamed from eth1
[  892.452120][T15787] Could not find device with ifindex 2000 in netnsfd 11
[  892.452833][T15787] Could not find netns with fd: 2000
[  892.453320][T15787] Cannot link a netdevsim to itself
[  892.453850][T15787] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).