[  487.991594] netdevsim netdevsim664 eni664np1: renamed from eth1
[  488.088622] netdevsim netdevsim377 eni377np1: renamed from eth0
[  488.298066] Could not find device with ifindex 2000 in netnsfd 11
[  488.298332] Could not find netns with fd: 2000
[  488.298444] Cannot link a netdevsim to itself
[  488.298559] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).