[  518.590778] netdevsim netdevsim346 eni346np1: renamed from eth0
[  518.687491] netdevsim netdevsim642 eni642np1: renamed from eth1
[  518.922715] Could not find device with ifindex 2000 in netnsfd 11
[  518.922912] Could not find netns with fd: 2000
[  518.922998] Cannot link a netdevsim to itself
[  518.923098] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).