[  520.431392] netdevsim netdevsim711 eni711np1: renamed from eth1
[  520.528223] netdevsim netdevsim415 eni415np1: renamed from eth0
[  520.753973] Could not find device with ifindex 2000 in netnsfd 11
[  520.754189] Could not find netns with fd: 2000
[  520.754271] Cannot link a netdevsim to itself
[  520.754370] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).