[  488.575281] netdevsim netdevsim742 eni742np1: renamed from eth1
[  488.671757] netdevsim netdevsim395 eni395np1: renamed from eth0
[  488.907871] Could not find device with ifindex 2000 in netnsfd 11
[  488.908194] Could not find netns with fd: 2000
[  488.908306] Cannot link a netdevsim to itself
[  488.908427] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).