[  453.867205] netdevsim netdevsim487 eni487np1: renamed from eth0
[  453.867554] netdevsim netdevsim674 eni674np1: renamed from eth1
[  453.953548] Could not find device with ifindex 2000 in netnsfd 11
[  453.953672] Could not find netns with fd: 2000
[  453.953763] Cannot link a netdevsim to itself
[  453.953864] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).