[  517.038686] netdevsim netdevsim499 eni499np1: renamed from eth0
[  517.136483] netdevsim netdevsim751 eni751np1: renamed from eth1
[  517.364924] Could not find device with ifindex 2000 in netnsfd 11
[  517.365146] Could not find netns with fd: 2000
[  517.365234] Cannot link a netdevsim to itself
[  517.365333] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).