[  621.664295][ T9995] netdevsim netdevsim357 eni357np1: renamed from eth0
[  621.678687][ T9997] netdevsim netdevsim517 eni517np1: renamed from eth1
[  622.269303][ T9982] Could not find device with ifindex 2000 in netnsfd 11
[  622.269875][ T9982] Could not find netns with fd: 2000
[  622.270295][ T9982] Cannot link a netdevsim to itself
[  622.270776][ T9982] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).