[  522.431331] netdevsim netdevsim313 eni313np1: renamed from eth0
[  522.527565] netdevsim netdevsim728 eni728np1: renamed from eth1
[  522.793891] Could not find device with ifindex 2000 in netnsfd 11
[  522.794127] Could not find netns with fd: 2000
[  522.794244] Cannot link a netdevsim to itself
[  522.794386] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).