[  492.972319] netdevsim netdevsim548 eni548np1: renamed from eth1
[  493.068837] netdevsim netdevsim407 eni407np1: renamed from eth0
[  493.299986] Could not find device with ifindex 2000 in netnsfd 11
[  493.300283] Could not find netns with fd: 2000
[  493.300356] Cannot link a netdevsim to itself
[  493.300453] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).