[  486.258827] netdevsim netdevsim336 eni336np1: renamed from eth0
[  486.360156] netdevsim netdevsim687 eni687np1: renamed from eth1
[  486.738454] Could not find device with ifindex 2000 in netnsfd 11
[  486.738628] Could not find netns with fd: 2000
[  486.738742] Cannot link a netdevsim to itself
[  486.738874] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).