[  483.972088] netdevsim netdevsim375 eni375np1: renamed from eth0
[  484.069529] netdevsim netdevsim620 eni620np1: renamed from eth1
[  484.271487] Could not find device with ifindex 2000 in netnsfd 11
[  484.271839] Could not find netns with fd: 2000
[  484.271918] Cannot link a netdevsim to itself
[  484.272004] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).