[  520.393889] netdevsim netdevsim593 eni593np1: renamed from eth1
[  520.491074] netdevsim netdevsim302 eni302np1: renamed from eth0
[  520.747676] Could not find device with ifindex 2000 in netnsfd 11
[  520.747861] Could not find netns with fd: 2000
[  520.747943] Cannot link a netdevsim to itself
[  520.748031] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).