[  460.263303] netdevsim netdevsim670 eni670np1: renamed from eth1
[  460.263951] netdevsim netdevsim341 eni341np1: renamed from eth0
[  460.345708] Could not find device with ifindex 2000 in netnsfd 11
[  460.345802] Could not find netns with fd: 2000
[  460.345840] Cannot link a netdevsim to itself
[  460.345884] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).