[  522.551858] netdevsim netdevsim376 eni376np1: renamed from eth0
[  522.648434] netdevsim netdevsim693 eni693np1: renamed from eth1
[  522.893764] Could not find device with ifindex 2000 in netnsfd 11
[  522.893994] Could not find netns with fd: 2000
[  522.894107] Cannot link a netdevsim to itself
[  522.894240] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).