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United States Patent
(io) Patent No.: (45) Date of Patent:
US 7,916,740 B2 Mar. 29, 2011
FOREIGN PATENT DOCUMENTS CN 1265809 A 9/2000
David C. Plummer (Nov. 1982). "RFC 826, An Ethernet Address Resolution Protocol—or—Converting Network Protocol Addresses to 48.bit Ethernet Address for Transmission on Ethernet Hardware". Internet Engineering Task Force, Network Working Group, http:// tools.ietf.org/html/rfc826.*
Primary Examiner — Ayaz R Sheildi
Assistant Examiner — Tarell Hampton
(74) Attorney, Agent, or Firm — Leydig, Voit & Mayer, Ltd.
An access network system, an address resolution protocol proxy method and an IP bridging forwarding method for the access network system are disclosed. The access network system comprises: one or more access network edge nodes that connect to one or more access nodes; one or more access nodes that connect to user terminals to the access network, and a reference point that is introduced between two adjacent access nodes for the access nodes interconnection. With this system, the multi-cast or broadcast flow in the network can be reduced and the communication delay and path can also be decreased. Therefore the communication bottleneck brought by BRAS/BNG can be avoided.
16 Claims, 31 Drawing Sheets
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DSL Forum, "Technical Report LR-101, Migartion to Ethernet-
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Frohler et al., "ATM Cell Based Ring Architecture with Optimized
Bandwidth Utilization, High Availability and Without Additional
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* cited by examiner