[  520.573612] netdevsim netdevsim708 eni708np1: renamed from eth1
[  520.670468] netdevsim netdevsim391 eni391np1: renamed from eth0
[  520.905876] Could not find device with ifindex 2000 in netnsfd 11
[  520.906086] Could not find netns with fd: 2000
[  520.906198] Cannot link a netdevsim to itself
[  520.906316] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).