[  480.019702] netdevsim netdevsim463 eni463np1: renamed from eth0
[  480.020276] netdevsim netdevsim742 eni742np1: renamed from eth1
[  480.109859] Could not find device with ifindex 2000 in netnsfd 11
[  480.109967] Could not find netns with fd: 2000
[  480.110014] Cannot link a netdevsim to itself
[  480.110068] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).