[  519.657364] netdevsim netdevsim722 eni722np1: renamed from eth1
[  519.754369] netdevsim netdevsim327 eni327np1: renamed from eth0
[  519.988230] Could not find device with ifindex 2000 in netnsfd 11
[  519.988499] Could not find netns with fd: 2000
[  519.988625] Cannot link a netdevsim to itself
[  519.988769] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).