[  479.695245] netdevsim netdevsim338 eni338np1: renamed from eth0
[  479.695631] netdevsim netdevsim670 eni670np1: renamed from eth1
[  479.776634] Could not find device with ifindex 2000 in netnsfd 11
[  479.776742] Could not find netns with fd: 2000
[  479.776801] Cannot link a netdevsim to itself
[  479.776861] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).