Gigabit passive optical network (PON) bandwidth management method based on ONU port

Abstract

The invention discloses a gigabit passive optical network (PON) bandwidth management method based on an ONU port, which comprises the following steps of: an A10 and an ONU sequentially distributes enough bandwidth to the OLT-distributed fixed bandwidth from high to low according the priority levels of different services, and building a corresponding bandwidth resource pool Bn; and an A20 and the ONU secondarily distributes to the same service on the different UN1 ports by means of recovering or borrowing the bandwidth resource from the bandwidth resource pool Bn according to the current status of the port. The method distributes the fixed bandwidth resource to the different services, recovers the bandwidth which is distributed to the ONU-underloaded UNI ports into the same service, memorizes the bandwidth into the ONU bandwidth resource pool, and borrows the bandwidth of the resource pool to the overloaded UNI ports, thereby realizing the bandwidth resource which is more fair and shares the ONU among the different UNI ports of the ONU.

Description

technical field [0001] The invention relates to a passive optical network, in particular to an ONU port-based gigabit passive optical network bandwidth management method. Background technique [0002] GPON (Gigabit-Capable PON) technology is the latest generation broadband passive optical integrated access standard based on the ITU-T G.984.x standard. It has many advantages such as high bandwidth, high efficiency, large coverage, and rich user interfaces. Most operators regard it as an ideal technology to achieve broadband and comprehensive transformation of access network services. [0003] Compared with other PON standards, the GPON standard provides unprecedented high bandwidth with a downlink rate of up to 2.5Gbit / s. Yuan and (or) GEM frames have good capabilities of providing service levels, supporting QoS guarantees and full service access. When carrying the GEM frame, the TDM service can be mapped into the GEM frame, and the standard 8kHz (125μs) frame can directly ...

AI Technical Summary

Problems solved by technology

[0007] In order to solve the problem in the prior art that it is impossible to ensure that different users under the same ONU can share the bandwidth resources allocated to the ONU fairly, the present invention provides a Gigabit passive optical network bandwidth management method based on the ONU port, including The following steps:

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