[  489.738776] netdevsim netdevsim723 eni723np1: renamed from eth1
[  489.835659] netdevsim netdevsim510 eni510np1: renamed from eth0
[  490.077173] Could not find device with ifindex 2000 in netnsfd 11
[  490.077487] Could not find netns with fd: 2000
[  490.077586] Cannot link a netdevsim to itself
[  490.077695] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).