[ 1005.939519][T12132] netdevsim netdevsim321 eni321np1: renamed from eth0
[ 1005.967158][T12131] netdevsim netdevsim643 eni643np1: renamed from eth1
[ 1007.864051][T12454] Could not find device with ifindex 2000 in netnsfd 11
[ 1007.865000][T12454] Could not find netns with fd: 2000
[ 1007.865705][T12454] Cannot link a netdevsim to itself
[ 1007.866475][T12454] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).