[  491.504386] netdevsim netdevsim756 eni756np1: renamed from eth1
[  491.600774] netdevsim netdevsim285 eni285np1: renamed from eth0
[  491.861241] Could not find device with ifindex 2000 in netnsfd 11
[  491.861520] Could not find netns with fd: 2000
[  491.861603] Cannot link a netdevsim to itself
[  491.861693] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).