Timing device and method for automatically capturing 10G EPON (10 Giga Ethernet Passive Optical Network) message

Abstract

The invention discloses a timing device and method for automatically capturing a 10G EPON (10 Giga Ethernet Passive Optical Network) message and relates to the field of communication. The timing method comprises the following steps: after starting the automatic capturing, counting for a preset time by an absolute clock subjected to time correction of a user / OLT (Optical Line Terminal) / ONU (Optical Network Unit) under an absolute timing capturing mode; starting the 10G EPON message capturing and writing into a capturing cache according to screening conditions; under a relative timing capturing mode, detecting a frame content and a frame state captured by specific starting; starting to count by a timing clock till reaching the time preset by the user; and starting a packet grabbing process and writing into the capturing cache according to screening conditions. According to the timing method provided by the invention, the 10G EPON message can be automatically and accurately captured and analyzed; the space for storing the captured message is reduced by designing accurate timing and filtering conditions; the performance and the use efficiency of a remote dispatcher are promoted; and the intercommunication capacity of different equipment factories is enhanced.

Description

technical field [0001] The invention relates to the communication field, in particular to a timing device and method for automatically capturing 10G EPON messages. Background technique [0002] 10G EPON (10 Giga Ethernet Passive Optical Network, 10 Gigabit Ethernet Passive Optical Network) is a new high-speed optical fiber access method that has only appeared in recent years. It adopts point-to-multipoint passive optical fiber transmission, carries high-speed voice, video, game, IPTV (Internet Protocol Television, interactive Internet TV) and other services on Ethernet, and provides quite reliable performance QoS (Quality of Service, service quality) service quality. The emergence of 10G EPON high-speed access technology has created conditions for the realization and popularization of the Internet of Things and cloud computing. [0003] Conventional test instruments do not have strict requirements on the start time of capture. Usually, the capture is triggered by pressing ...

AI Technical Summary

Problems solved by technology

For the structure of high-speed interactive EPON packets above 10G, see figure 1 As shown, its capture method is very complicated, and it has always been an invisible black box for equipment manufacturers and operators, which has brought great obstacles to the promotion and application of 10G EPON technology

The 10G EPON system equipment puts forward more stringent test requirements. The current 10GE test equipment is difficult to meet the actual test requirements, and cannot regularly capture and analyze 10G EPON packets; in addition, the current communication exchange rate is getting higher and higher, and the packet capture cache is relatively Limited, unable to meet the increasing demand for communication exchange rates

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