[  487.139843] netdevsim netdevsim310 eni310np1: renamed from eth0
[  487.236521] netdevsim netdevsim574 eni574np1: renamed from eth1
[  487.448251] Could not find device with ifindex 2000 in netnsfd 11
[  487.448561] Could not find netns with fd: 2000
[  487.448639] Cannot link a netdevsim to itself
[  487.448737] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).