[  520.081889] netdevsim netdevsim613 eni613np1: renamed from eth1
[  520.179821] netdevsim netdevsim425 eni425np1: renamed from eth0
[  520.439696] Could not find device with ifindex 2000 in netnsfd 11
[  520.439888] Could not find netns with fd: 2000
[  520.439990] Cannot link a netdevsim to itself
[  520.440089] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).