[  487.090703] netdevsim netdevsim741 eni741np1: renamed from eth1
[  487.187515] netdevsim netdevsim448 eni448np1: renamed from eth0
[  487.391132] Could not find device with ifindex 2000 in netnsfd 11
[  487.391546] Could not find netns with fd: 2000
[  487.391666] Cannot link a netdevsim to itself
[  487.391773] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).