[  513.697252] netdevsim netdevsim354 eni354np1: renamed from eth0
[  513.795231] netdevsim netdevsim723 eni723np1: renamed from eth1
[  514.002998] Could not find device with ifindex 2000 in netnsfd 11
[  514.003198] Could not find netns with fd: 2000
[  514.003294] Cannot link a netdevsim to itself
[  514.003420] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).