[  525.385136] netdevsim netdevsim518 eni518np1: renamed from eth1
[  525.481781] netdevsim netdevsim347 eni347np1: renamed from eth0
[  525.751626] Could not find device with ifindex 2000 in netnsfd 11
[  525.751847] Could not find netns with fd: 2000
[  525.751948] Cannot link a netdevsim to itself
[  525.752082] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).