[  489.123056] netdevsim netdevsim316 eni316np1: renamed from eth0
[  489.219554] netdevsim netdevsim751 eni751np1: renamed from eth1
[  489.450670] Could not find device with ifindex 2000 in netnsfd 11
[  489.450982] Could not find netns with fd: 2000
[  489.451093] Cannot link a netdevsim to itself
[  489.451222] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).