[  512.791135] netdevsim netdevsim726 eni726np1: renamed from eth1
[  512.887407] netdevsim netdevsim376 eni376np1: renamed from eth0
[  513.077614] Could not find device with ifindex 2000 in netnsfd 11
[  513.077811] Could not find netns with fd: 2000
[  513.077898] Cannot link a netdevsim to itself
[  513.078004] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).