[  520.844231] netdevsim netdevsim485 eni485np1: renamed from eth0
[  520.940962] netdevsim netdevsim723 eni723np1: renamed from eth1
[  521.211555] Could not find device with ifindex 2000 in netnsfd 11
[  521.211776] Could not find netns with fd: 2000
[  521.211870] Cannot link a netdevsim to itself
[  521.211966] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).