[  512.216808] netdevsim netdevsim583 eni583np1: renamed from eth1
[  512.314067] netdevsim netdevsim434 eni434np1: renamed from eth0
[  512.543844] Could not find device with ifindex 2000 in netnsfd 11
[  512.544043] Could not find netns with fd: 2000
[  512.544131] Cannot link a netdevsim to itself
[  512.544227] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).