[  749.792013][T14448] netdevsim netdevsim415 eni415np1: renamed from eth0
[  749.804386][T14450] netdevsim netdevsim604 eni604np1: renamed from eth1
[  750.385723][T14436] Could not find device with ifindex 2000 in netnsfd 11
[  750.386356][T14436] Could not find netns with fd: 2000
[  750.386841][T14436] Cannot link a netdevsim to itself
[  750.387361][T14436] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).