Patent ID: 7916740
Filing Date: 2011-03-29
Classification: H04L,H04Q

Abstract:
1. An access network system, comprising: one or more access network edge nodes, each of which being connected with one or more access nodes; and each of the access nodes comprising at least one of the following: an access node supporting layer-3 routing, an access node supporting layer-2, an access node supporting IP bridging, and an access node supporting address resolution protocol proxy; and at least one access node of the one or more access nodes, connected to a customer premises network (CPN) in a digital subscriber line (DSL) access technique or a passive optical network (PON) access technique, and configured to enable a user terminal in the CPN to access to the access network system, wherein the access node is configured to communicate with another access node in the access network system; wherein the access node is configured to proxy-forward an address resolution protocol message and store an IP bridging forwarding table; wherein the access network edge nodes are connected with the access nodes in at least one of the following networking modes: star, tree, chain, and dual-ring, wherein in the case of unicast service, the access network edge nodes are connected with the access nodes in a star or tree networking mode; and in the case of multicast or broadcast service, the access network edge nodes are connected with the access nodes in a chain or dual-ring networking mode; wherein the IP session information in the IP bridging forwarding table comprises: a user-side physical port, a user IP address, and a user MAC address; the IP service connection information in the IP bridging forwarding table comprises a MAC address of the access network edge node; and wherein the IP service connection information further comprises at least one of the following information: a network-side physical port and a virtual local area network identifier.