[  482.432435] netdevsim netdevsim312 eni312np1: renamed from eth0
[  482.533983] netdevsim netdevsim722 eni722np1: renamed from eth1
[  482.878193] Could not find device with ifindex 2000 in netnsfd 11
[  482.878343] Could not find netns with fd: 2000
[  482.878420] Cannot link a netdevsim to itself
[  482.878509] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).