[  870.744153][T15806] netdevsim netdevsim450 eni450np1: renamed from eth0
[  870.756510][T15808] netdevsim netdevsim587 eni587np1: renamed from eth1
[  871.484439][T15794] Could not find device with ifindex 2000 in netnsfd 11
[  871.485130][T15794] Could not find netns with fd: 2000
[  871.486075][T15794] Cannot link a netdevsim to itself
[  871.486704][T15794] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).