[  515.608154] netdevsim netdevsim674 eni674np1: renamed from eth1
[  515.705508] netdevsim netdevsim295 eni295np1: renamed from eth0
[  515.912305] Could not find device with ifindex 2000 in netnsfd 11
[  515.912550] Could not find netns with fd: 2000
[  515.912663] Cannot link a netdevsim to itself
[  515.912800] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).