[  479.723102] netdevsim netdevsim506 eni506np1: renamed from eth0
[  479.723401] netdevsim netdevsim630 eni630np1: renamed from eth1
[  479.813529] Could not find device with ifindex 2000 in netnsfd 11
[  479.813690] Could not find netns with fd: 2000
[  479.813798] Cannot link a netdevsim to itself
[  479.813926] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).