[  519.480007] netdevsim netdevsim722 eni722np1: renamed from eth1
[  519.577372] netdevsim netdevsim490 eni490np1: renamed from eth0
[  519.821024] Could not find device with ifindex 2000 in netnsfd 11
[  519.821202] Could not find netns with fd: 2000
[  519.821298] Cannot link a netdevsim to itself
[  519.821411] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).