[  507.143845] netdevsim netdevsim680 eni680np1: renamed from eth1
[  507.244388] netdevsim netdevsim470 eni470np1: renamed from eth0
[  507.596887] Could not find device with ifindex 2000 in netnsfd 11
[  507.597037] Could not find netns with fd: 2000
[  507.597121] Cannot link a netdevsim to itself
[  507.597208] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).