| 摘要 |
A method for control an access network node which is comprising of central office (CO) and more than one customer premises equipment (CPE), provides a single management interface in the CO to a software defined network management system, that utilizes a software defined network protocol, the interface allows the software defined network management system to configure an user flow in the access network node by assigning a network node interface resides in the CO which interconnects to a core network and an user network node interface resides in the CPE which interconnects to a user terminal and a required user data forwarding function for the flow, the access network node maintains its own forwarding resources and it determines available resources required for the forwarding request, configures the CO and/or the CPE with a protocol translation which adapts the software defined protocol with the legacy protocol when the CO and/or the CPE works with the legacy protocol. |
| 主权项 |
1. A method of virtualize an access network node which comprises a Central Office device (CO) and more than one Customer Premises End device (CPE), communicating between CO and CPE using a control channel for controlling purpose, comprising;
a virtualized access User Network Interface (UNI) at the interface point of the CPE and user terminal, a virtualized access Network Node Interface (NNI) at the interface point of the CO and core data network, a virtual access node which has interfacing points consist of the virtualized access UNI and virtualized access NNI, a virtual access node which function set is determined by underlying CO and CPE, a SDN Agent resides inside of the CO which communicates with SDN Management System to send and receive SDN control message, and generate partitioned SDN control message which adapt with flow forwarding resources both in CO device and CPE device to configure the resources, a Resource Manager resides inside of the CO which maintains Capability List database and Serving Resource List database, a Protocol Translator resides inside of the CO which translates between SDN control message and legacy control message, and a Message Parser resides inside of the CO which determines the resource to deliver a control message and forward the control message. |
