[  500.001682] netdevsim netdevsim279 eni279np1: renamed from eth0
[  500.002235] netdevsim netdevsim685 eni685np1: renamed from eth1
[  500.083410] Could not find device with ifindex 2000 in netnsfd 11
[  500.083559] Could not find netns with fd: 2000
[  500.083664] Cannot link a netdevsim to itself
[  500.083787] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).