[  518.316068] netdevsim netdevsim743 eni743np1: renamed from eth1
[  518.413624] netdevsim netdevsim404 eni404np1: renamed from eth0
[  518.655429] Could not find device with ifindex 2000 in netnsfd 11
[  518.655595] Could not find netns with fd: 2000
[  518.655675] Cannot link a netdevsim to itself
[  518.655764] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).