[  472.519984] netdevsim netdevsim377 eni377np1: renamed from eth0
[  472.520841] netdevsim netdevsim697 eni697np1: renamed from eth1
[  472.602471] Could not find device with ifindex 2000 in netnsfd 11
[  472.602575] Could not find netns with fd: 2000
[  472.602620] Cannot link a netdevsim to itself
[  472.602669] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).