[ 1277.938874][T12860] netdevsim netdevsim627 eni627np1: renamed from eth1
[ 1278.026556][T12859] netdevsim netdevsim299 eni299np1: renamed from eth0
[ 1280.542431][T12847] Could not find device with ifindex 2000 in netnsfd 11
[ 1280.544464][T12847] Could not find netns with fd: 2000
[ 1280.545819][T12847] Cannot link a netdevsim to itself
[ 1280.546915][T12847] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).