[  521.980715] netdevsim netdevsim577 eni577np1: renamed from eth1
[  522.078795] netdevsim netdevsim415 eni415np1: renamed from eth0
[  522.305300] Could not find device with ifindex 2000 in netnsfd 11
[  522.305512] Could not find netns with fd: 2000
[  522.305618] Cannot link a netdevsim to itself
[  522.305752] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).