[ 1049.843255][T12758] netdevsim netdevsim748 eni748np1: renamed from eth1
[ 1049.944143][T12759] netdevsim netdevsim312 eni312np1: renamed from eth0
[ 1051.767011][T12751] Could not find device with ifindex 2000 in netnsfd 11
[ 1051.768024][T12751] Could not find netns with fd: 2000
[ 1051.768722][T12751] Cannot link a netdevsim to itself
[ 1051.769507][T12751] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).