[  513.233545] netdevsim netdevsim556 eni556np1: renamed from eth1
[  513.330972] netdevsim netdevsim495 eni495np1: renamed from eth0
[  513.532147] Could not find device with ifindex 2000 in netnsfd 11
[  513.532291] Could not find netns with fd: 2000
[  513.532365] Cannot link a netdevsim to itself
[  513.532450] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).