[  483.521621] netdevsim netdevsim456 eni456np1: renamed from eth0
[  483.623866] netdevsim netdevsim584 eni584np1: renamed from eth1
[  484.006000] Could not find device with ifindex 2000 in netnsfd 11
[  484.006178] Could not find netns with fd: 2000
[  484.006266] Cannot link a netdevsim to itself
[  484.006382] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).