[  834.360993][T15644] netdevsim netdevsim372 eni372np1: renamed from eth0
[  834.376169][T15643] netdevsim netdevsim666 eni666np1: renamed from eth1
[  835.155753][T15632] Could not find device with ifindex 2000 in netnsfd 11
[  835.156839][T15632] Could not find netns with fd: 2000
[  835.157312][T15632] Cannot link a netdevsim to itself
[  835.158073][T15632] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).