[  485.296306] netdevsim netdevsim347 eni347np1: renamed from eth0
[  485.297802] netdevsim netdevsim727 eni727np1: renamed from eth1
[  485.394313] Could not find device with ifindex 2000 in netnsfd 11
[  485.394438] Could not find netns with fd: 2000
[  485.394492] Cannot link a netdevsim to itself
[  485.394562] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).