[  480.552478] netdevsim netdevsim489 eni489np1: renamed from eth0
[  480.553530] netdevsim netdevsim767 eni767np1: renamed from eth0
[  480.658602] Could not find device with ifindex 2000 in netnsfd 11
[  480.658723] Could not find netns with fd: 2000
[  480.658779] Cannot link a netdevsim to itself
[  480.658842] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).