[  823.093435][T15707] netdevsim netdevsim431 eni431np1: renamed from eth0
[  823.112850][T15705] netdevsim netdevsim521 eni521np1: renamed from eth1
[  823.833573][T15694] Could not find device with ifindex 2000 in netnsfd 11
[  823.834232][T15694] Could not find netns with fd: 2000
[  823.834715][T15694] Cannot link a netdevsim to itself
[  823.835232][T15694] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).