[  762.304888][T14651] netdevsim netdevsim256 eni256np1: renamed from eth0
[  762.315719][T14653] netdevsim netdevsim701 eni701np1: renamed from eth1
[  762.884601][T14639] Could not find device with ifindex 2000 in netnsfd 11
[  762.885296][T14639] Could not find netns with fd: 2000
[  762.885660][T14639] Cannot link a netdevsim to itself
[  762.886096][T14639] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).