[  489.095915] netdevsim netdevsim404 eni404np1: renamed from eth0
[  489.192317] netdevsim netdevsim674 eni674np1: renamed from eth1
[  489.436176] Could not find device with ifindex 2000 in netnsfd 11
[  489.436487] Could not find netns with fd: 2000
[  489.436586] Cannot link a netdevsim to itself
[  489.436705] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).