[  756.562972][T14447] netdevsim netdevsim511 eni511np1: renamed from eth0
[  756.568634][T14448] netdevsim netdevsim625 eni625np1: renamed from eth1
[  757.103879][T14434] Could not find device with ifindex 2000 in netnsfd 11
[  757.104386][T14434] Could not find netns with fd: 2000
[  757.104749][T14434] Cannot link a netdevsim to itself
[  757.105172][T14434] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).