[  519.957348] netdevsim netdevsim745 eni745np1: renamed from eth1
[  520.054627] netdevsim netdevsim441 eni441np1: renamed from eth0
[  520.271427] Could not find device with ifindex 2000 in netnsfd 11
[  520.271624] Could not find netns with fd: 2000
[  520.271717] Cannot link a netdevsim to itself
[  520.271834] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).