Method for filtering data stream in Gigabit passive optical network and optical network terminal
A passive optical network and optical network terminal technology, which is applied in the field of data stream filtering and optical network terminal, can solve the problems of large-scale popularization and application of Gigabit passive optical network, inability to realize VLAN filtering, and difficulty in realizing VLAN filtering, etc. , to achieve stable and reliable work performance, improve data business capabilities, and fast and convenient use
Active Publication Date: 2012-07-04
SHANGHAI GONGJIN COMM TECH
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Problems solved by technology
[0004] However, in the prior art, it is difficult and complicated to increase the realization of VLAN filtering by adding a switching chip. The ports of the PON are directly connected, and the PON chip cannot distinguish which port the data flow comes from, let alone implement port-based VLAN filtering.
This brings certain obstacles to the large-scale popularization and application of Gigabit passive optical networks.
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[0057] In order to understand the technical content of the present invention more clearly, the following examples are given in detail.
[0058] see figure 1 shown, where Both represent uplink data, Both represent downlink data; the method for realizing data stream filtering in the gigabit passive optical network uses an optical network terminal connected to the central office equipment, and the optical network terminal includes a switching function chip and a PON function chip, and the described The uplink port of the switch function chip is connected with the downlink port of the PON function chip, and the PON function chip is connected with the central office equipment, wherein the method includes system initialization operation, uplink Data processing operation and downlink data processing operation, the described system initialization operation includes the following steps:
[0059] (11) Initialize the state of the switching function chip and the PON function chip in ...
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The invention relates to a method for filtering data stream in Gigabit passive optical network (GPON) and an optical network terminal. The method for filtering the data stream comprises a system initialization operation, an uplink data processing operation and a downlink data processing operation; the optical network terminal comprises an initialization module, a set command processing module of an optical line terminal apparatus, an uplink data analyzing and processing module, an uplink data VLAN tag separation processing module, a downlink data analyzing and processing module and a downlinkdata transfer processing module. The method for filtering the data stream in the Gigabit passive optical network and the optical network terminal are combined with the respective characteristics of aPON functional chip and an exchange functional chip in use to realize the VLAN filtration based on the port, thereby greatly improving the data service ability of ONT, achieving rapid and convenient use process, stable and reliable working performance, simultaneously improving the application range of the GPON and reducing the maintenance cost of software and hardware. The invention has strong commonality, wide application range and great reference value for realizing other data services of the GPON.
Description
technical field [0001] The present invention relates to the field of Gigabit Passive Optical Network (GPON), in particular to the technical field of Gigabit Passive Optical Network (GPON) VLAN processing, and specifically refers to a method and an optical method for realizing data flow filtering in a Gigabit Passive Optical Network. network terminal. Background technique [0002] GPON access technology is a brand-new access network technology of PON technology. It provides downlink bandwidth of 2.5Gbps and uplink bandwidth of 1.25Gbps. Data service configuration has very strong flexibility. [0003] With the continuous development of GPON and the maturity of engineering technology, the user's data service configuration generally needs to filter specific service VLANs based on ports. If the user only needs to configure one UNI port for the optical network terminal, VLAN filtering can be done directly on the PON chip, but in the optical network terminal solution with multiple...
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IPC IPC(8): H04L12/56H04L12/46H04Q11/00
Inventor 乐毅蔡溯源张定理刘智
Owner SHANGHAI GONGJIN COMM TECH