Method for enhancing QoS (Quality of Service) and VLAN (Virtual Local Area Network) processing capability in EPON (Ethernet Passive Optical Network) system

Abstract

The invention discloses a method for enhancing quality of service (QoS) and virtual local area network (VLAN) processing capability in a passive optical network (PON) system, wherein the uplink data-flow classification of a switching chip can be carried out on the basis of a logic link identifier (LLID) by adding a mark in the PON system, the function of an access control list (ACL) of the waste switching chip in an original design can be sufficiently applied through rational planning, and the method not only can be used for the expansion and the complementation of the flow classifying function of a PON chip, but also can be used for dividing a processing range with the PON chip, thereby under the condition of no increase of the cost of any hardware, the QoS and VLAN processing capabilityof the PON system is greatly expanded and enhanced, and the performance-price ratio of equipment is improved.

Description

technical field [0001] The invention relates to Ethernet Passive Optical Network (EPON, Ethernet Passive Optical Network) technology, in particular to a method for enhancing service quality (QoS) and virtual local area network (VLAN) processing capability in an Ethernet passive optical network system. Background technique [0002] Passive Optical Network (PON, Passive Optical Network) is a pure media network. Since it eliminates the active equipment between the central office and the user end, it can avoid electromagnetic interference and lightning effects of external equipment, and reduce the number of lines and external Reduce the failure rate of equipment, improve system reliability, and save maintenance costs. The transparency of PON business is better, EPON adopts point-to-multipoint structure, passive optical fiber transmission mode, and provides various services on Ethernet. The most efficient method of communication. [0003] In recent years, with the continuous ex...

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Problems solved by technology

[0006] However, in the existing PON system design, usually only the flow classification and actions provided by the PON chip are used. In addition to the huge waste of the powerful access control list (ACL) function of the entire switching chip being discarded, this design also has the following defects :

[0007] First, the flow classification matching rules provided by the PON chip are limited, which cannot meet certain exact matching requirements;

[0008] Second, the flow classification actions provided by the PON chip are very limited and cannot meet specific needs;

[0009] Third, the number of entries for flow classification is very limited, which may not meet the requirements in engineering applications

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