[  519.826771] netdevsim netdevsim318 eni318np1: renamed from eth0
[  519.924194] netdevsim netdevsim688 eni688np1: renamed from eth1
[  520.169223] Could not find device with ifindex 2000 in netnsfd 11
[  520.169410] Could not find netns with fd: 2000
[  520.169497] Cannot link a netdevsim to itself
[  520.169600] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).