[  494.061696] netdevsim netdevsim266 eni266np1: renamed from eth0
[  494.158540] netdevsim netdevsim687 eni687np1: renamed from eth1
[  494.393017] Could not find device with ifindex 2000 in netnsfd 11
[  494.393418] Could not find netns with fd: 2000
[  494.393522] Cannot link a netdevsim to itself
[  494.393637] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).