Single-fiber multi-network security access device and method based on time slot grouping

Abstract

The invention discloses a single-fiber multi-network security access device and method based on time slot grouping, the device comprises an OLT, optical fiber splitters and ONUs, the OLT is connected with a plurality of optical fiber splitters, each optical fiber splitter is connected with a plurality of ONUs, and the ONUs are connected with the OLT. The OLT equipment comprises an Ethernet processing module I, a basic PON processing module, a data buffer module I, a time slot allocation extraction module I, a frame synthesis decomposition module I, a time slot grouping control module, a maintenance control module and a newly added PON control module; the ONU terminal comprises a second time slot distribution and extraction module, a second frame synthesis and decomposition module, a second data buffer module, a second Ethernet processing module and an ONU processing module. The method is realized based on equipment. According to the single-fiber multi-network security access device and method based on time slot grouping, by optimizing OLT device and ONU terminal configuration, time slots in a GPON frame are grouped, multi-network security access is achieved, the network structure is simplified, and the utilization rate of the device is improved.

Description

technical field [0001] The invention relates to the technical field of optical fiber communication networks, in particular to a single-fiber multi-network secure access device and method based on time slot grouping. Background technique [0002] At present, the development direction of network technology is multi-network integration. The optical fiber access network solves the problem of the information highway and the last mile of multi-network integration. Desktop, a variety of information including IP phone, digital TV and IP network data, etc. [0003] The existing optical fiber access network usually adopts passive optical network (PON) technology. PON is a general term for GPON, EPON, NG-PON, XG-PON and other technologies, and is a common optical fiber access technology with international standards. PON technology adopts the latest generation of broadband optical integrated access standard, which has many advantages such as high bandwidth, high efficiency, large cover...

AI Technical Summary

Problems solved by technology

However, in the case of confidentiality requirements, it is required that multiple Ethernets cannot be integrated into one network, and two or more independent Ethernet accesses are required. In this case, an ordinary set of optical fiber access network cannot be realized. The secure access of multiple networks can only be achieved by establishing multiple systems (such as figure 2 ), the complexity is obvious

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