[  484.654434] netdevsim netdevsim533 eni533np1: renamed from eth1
[  484.750446] netdevsim netdevsim319 eni319np1: renamed from eth0
[  484.976177] Could not find device with ifindex 2000 in netnsfd 11
[  484.976507] Could not find netns with fd: 2000
[  484.976599] Cannot link a netdevsim to itself
[  484.976719] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).