[  474.211173] netdevsim netdevsim346 eni346np1: renamed from eth0
[  474.211975] netdevsim netdevsim631 eni631np1: renamed from eth0
[  474.293528] Could not find device with ifindex 2000 in netnsfd 11
[  474.293629] Could not find netns with fd: 2000
[  474.293683] Cannot link a netdevsim to itself
[  474.293731] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).