[ 1030.902854][T12681] netdevsim netdevsim516 eni516np1: renamed from eth1
[ 1031.001395][T12730] netdevsim netdevsim338 eni338np1: renamed from eth0
[ 1032.782174][T12725] Could not find device with ifindex 2000 in netnsfd 11
[ 1032.783132][T12725] Could not find netns with fd: 2000
[ 1032.783807][T12725] Cannot link a netdevsim to itself
[ 1032.784619][T12725] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).