[ 1020.742611][T12729] netdevsim netdevsim501 eni501np1: renamed from eth0
[ 1020.860732][T12681] netdevsim netdevsim630 eni630np1: renamed from eth1
[ 1022.573527][T12725] Could not find device with ifindex 2000 in netnsfd 11
[ 1022.574489][T12725] Could not find netns with fd: 2000
[ 1022.575389][T12725] Cannot link a netdevsim to itself
[ 1022.576117][T12725] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).