[  520.003384] netdevsim netdevsim317 eni317np1: renamed from eth0
[  520.101725] netdevsim netdevsim672 eni672np1: renamed from eth1
[  520.337305] Could not find device with ifindex 2000 in netnsfd 11
[  520.337492] Could not find netns with fd: 2000
[  520.337578] Cannot link a netdevsim to itself
[  520.337676] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).