[  485.089910] netdevsim netdevsim563 eni563np1: renamed from eth1
[  485.192185] netdevsim netdevsim319 eni319np1: renamed from eth0
[  485.574231] Could not find device with ifindex 2000 in netnsfd 11
[  485.574406] Could not find netns with fd: 2000
[  485.574514] Cannot link a netdevsim to itself
[  485.574660] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).