[  485.647835] netdevsim netdevsim671 eni671np1: renamed from eth1
[  485.744190] netdevsim netdevsim485 eni485np1: renamed from eth0
[  485.954878] Could not find device with ifindex 2000 in netnsfd 11
[  485.955231] Could not find netns with fd: 2000
[  485.955342] Cannot link a netdevsim to itself
[  485.955464] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).