[ 1037.866396][T12759] netdevsim netdevsim500 eni500np1: renamed from eth0
[ 1037.940350][T12757] netdevsim netdevsim669 eni669np1: renamed from eth1
[ 1039.798246][T12751] Could not find device with ifindex 2000 in netnsfd 11
[ 1039.799293][T12751] Could not find netns with fd: 2000
[ 1039.800050][T12751] Cannot link a netdevsim to itself
[ 1039.800846][T12751] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).