[  488.657900] netdevsim netdevsim562 eni562np1: renamed from eth1
[  488.754896] netdevsim netdevsim309 eni309np1: renamed from eth0
[  488.953967] Could not find device with ifindex 2000 in netnsfd 11
[  488.954395] Could not find netns with fd: 2000
[  488.954500] Cannot link a netdevsim to itself
[  488.954620] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).