[  760.170538][T14573] netdevsim netdevsim256 eni256np1: renamed from eth0
[  760.189329][T14575] netdevsim netdevsim580 eni580np1: renamed from eth1
[  760.774598][T14561] Could not find device with ifindex 2000 in netnsfd 11
[  760.775475][T14561] Could not find netns with fd: 2000
[  760.775866][T14561] Cannot link a netdevsim to itself
[  760.776280][T14561] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).