[  517.708804] netdevsim netdevsim396 eni396np1: renamed from eth0
[  517.807149] netdevsim netdevsim644 eni644np1: renamed from eth1
[  518.017550] Could not find device with ifindex 2000 in netnsfd 11
[  518.017715] Could not find netns with fd: 2000
[  518.017787] Cannot link a netdevsim to itself
[  518.017887] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).