[  520.511392] netdevsim netdevsim394 eni394np1: renamed from eth0
[  520.608234] netdevsim netdevsim695 eni695np1: renamed from eth1
[  520.823745] Could not find device with ifindex 2000 in netnsfd 11
[  520.823921] Could not find netns with fd: 2000
[  520.824008] Cannot link a netdevsim to itself
[  520.824121] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).