[  489.150654] netdevsim netdevsim396 eni396np1: renamed from eth0
[  489.247650] netdevsim netdevsim751 eni751np1: renamed from eth1
[  489.460189] Could not find device with ifindex 2000 in netnsfd 11
[  489.460428] Could not find netns with fd: 2000
[  489.460501] Cannot link a netdevsim to itself
[  489.460622] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).