[  523.271384] netdevsim netdevsim431 eni431np1: renamed from eth0
[  523.368030] netdevsim netdevsim708 eni708np1: renamed from eth1
[  523.631435] Could not find device with ifindex 2000 in netnsfd 11
[  523.631639] Could not find netns with fd: 2000
[  523.631737] Cannot link a netdevsim to itself
[  523.631849] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).