[  469.400571] netdevsim netdevsim319 eni319np1: renamed from eth0
[  469.497532] netdevsim netdevsim659 eni659np1: renamed from eth1
[  469.725046] Could not find device with ifindex 2000 in netnsfd 11
[  469.725211] Could not find netns with fd: 2000
[  469.725291] Cannot link a netdevsim to itself
[  469.725391] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).