[  769.017610][T13081] netdevsim netdevsim461 eni461np1: renamed from eth0
[  769.030570][T13083] netdevsim netdevsim666 eni666np1: renamed from eth1
[  769.809824][T13069] Could not find device with ifindex 2000 in netnsfd 11
[  769.810636][T13069] Could not find netns with fd: 2000
[  769.811052][T13069] Cannot link a netdevsim to itself
[  769.811526][T13069] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).