[  485.512870] netdevsim netdevsim502 eni502np1: renamed from eth0
[  485.609650] netdevsim netdevsim671 eni671np1: renamed from eth1
[  485.815157] Could not find device with ifindex 2000 in netnsfd 11
[  485.815427] Could not find netns with fd: 2000
[  485.815501] Cannot link a netdevsim to itself
[  485.815607] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).