[  872.752630][ T9496] netdevsim netdevsim470 eni470np1: renamed from eth0
[  872.855342][ T9668] netdevsim netdevsim601 eni601np1: renamed from eth1
[  874.655887][ T9661] Could not find device with ifindex 2000 in netnsfd 11
[  874.657496][ T9661] Could not find netns with fd: 2000
[  874.658563][ T9661] Cannot link a netdevsim to itself
[  874.659827][ T9661] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).