[  520.843720] netdevsim netdevsim440 eni440np1: renamed from eth0
[  520.941424] netdevsim netdevsim605 eni605np1: renamed from eth1
[  521.174211] Could not find device with ifindex 2000 in netnsfd 11
[  521.174454] Could not find netns with fd: 2000
[  521.174565] Cannot link a netdevsim to itself
[  521.174704] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).