The layer specific OSS is configured to selectively request on demand provisioning of {TAIL ~ bandwidth} on {HEAD ~ the sub network} based on the predefined bandwidth provisioning policies 
The layer specific OSS is configured to selectively request on demand provisioning of { TAIL ~ bandwidth } on { HEAD ~ the sub network } based on the predefined bandwidth provisioning policies
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH