[  485.958617] netdevsim netdevsim344 eni344np1: renamed from eth0
[  486.059300] netdevsim netdevsim763 eni763np1: renamed from eth1
[  486.355622] Could not find device with ifindex 2000 in netnsfd 11
[  486.355801] Could not find netns with fd: 2000
[  486.355888] Cannot link a netdevsim to itself
[  486.356017] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).