[  520.924091] netdevsim netdevsim690 eni690np1: renamed from eth1
[  521.020556] netdevsim netdevsim422 eni422np1: renamed from eth0
[  521.290852] Could not find device with ifindex 2000 in netnsfd 11
[  521.291080] Could not find netns with fd: 2000
[  521.291181] Cannot link a netdevsim to itself
[  521.291306] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).