[  487.401838] netdevsim netdevsim651 eni651np1: renamed from eth1
[  487.497649] netdevsim netdevsim316 eni316np1: renamed from eth0
[  487.702748] Could not find device with ifindex 2000 in netnsfd 11
[  487.703074] Could not find netns with fd: 2000
[  487.703173] Cannot link a netdevsim to itself
[  487.703306] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).