[  519.917839] netdevsim netdevsim682 eni682np1: renamed from eth1
[  520.015383] netdevsim netdevsim258 eni258np1: renamed from eth0
[  520.249684] Could not find device with ifindex 2000 in netnsfd 11
[  520.249849] Could not find netns with fd: 2000
[  520.249921] Cannot link a netdevsim to itself
[  520.250009] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).