[  484.911629] netdevsim netdevsim342 eni342np1: renamed from eth0
[  484.912101] netdevsim netdevsim546 eni546np1: renamed from eth1
[  484.995847] Could not find device with ifindex 2000 in netnsfd 11
[  484.995928] Could not find netns with fd: 2000
[  484.995971] Cannot link a netdevsim to itself
[  484.996022] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).