Method and system used for identifying and processing abnormal frame
An exception frame and exception handling technology, applied in the field of optical fiber transmission, can solve problems such as abnormal operation, wrong identification, and no solution for TS-1000 protocol, so as to avoid failure, improve reliability, and increase robustness.
Active Publication Date: 2014-11-26
SHANGHAI ZTE SOFTWARE CO LTD
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Problems solved by technology
If an OAM frame is inserted, as shown in the structure below, the length of the interrupted user frame field is exactly 12 bytes, and meets the OAM frame characteristics specified in the TS-1000 protocol, that is, the first 8 bits are preamble, and the 9th bit is 0, the last byte is the CRC check result, which may cause the data receiving end to mistakenly identify this field as another OAM frame, thus causing an abnormal operation
For this problem, there is no relevant solution in the TS-1000 protocol
Method used
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[0030] The basic idea of the present invention is to monitor the sent data, identify the abnormal frame according to the frame structure stipulated by the TS-1000 protocol and the 802.3 protocol, and the sending status of the OAM frame; and perform abnormal processing on the abnormal frame.
[0031] The technical solutions of the present invention will be further elaborated below in conjunction with the accompanying drawings and specific embodiments.
[0032] figure 2 It is a schematic flowchart of a method for identifying and processing abnormal frames in the present invention, such as figure 2 As shown, the method specifically includes the following steps:
[0033] Step 201, monitor the data sent, and identify the abnormal frame according to the frame structure specified in the TS-1000 protocol and the 802.3 protocol, and the sending status of the OAM frame;
[0034]Specifically, identifying the abnormal frame according to the frame structure specified in the TS-1000 p...
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Disclosed is a method for identifying and processing an abnormal frame. The method includes: monitoring data being transmitted and identifying an abnormal frame according to the frame structure defined by the TS-1000 protocol and 802.3 protocol and the transmission state of the operation, administration and maintenance (OAM) frame; and carrying out exception processing on the abnormal frame. Further disclosed is a system for identifying and processing an abnormal frame. By way of the method and system, the transmitting end device supporting the TS-1000 protocol achieves data control on the basis of monitoring, i.e. identifying the abnormal frame and processing the same. It is ensured that the receiving end will not receive the abnormal frame, or not mistake the invalid information for a valid OAM frame even if receiving the same, thus the robustness of the TS-1000 protocol is increased and the reliability of devices supporting the TS-1000 protocol is improved.
Description
technical field [0001] The invention relates to the technology of optical fiber transmission using TS-1000 protocol, in particular to a method and system for identifying and processing abnormal frames. Background technique [0002] Optical fiber, referred to as optical fiber, is a light transmission tool that utilizes the principle of total reflection of light in fibers made of glass or plastic. Optical fiber is an important network transmission medium. Compared with other network transmission media, optical fiber has the advantages of wide frequency bandwidth, low loss, light weight, strong anti-interference ability, high fidelity, and reliable working performance. According to the transmission mode, the optical fiber can also be divided into single-mode fiber (Single Mode Fiber, SMF) and multi-mode fiber (Multi-Mode Fiber, MMF). Among them, single-mode fiber refers to an optical fiber that can only transmit light of one mode at a specified wavelength, and its transmissio...
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IPC IPC(8): H04Q11/00H04L12/24H04L29/06
CPCH04W24/00
Inventor 彭明滕达
Owner SHANGHAI ZTE SOFTWARE CO LTD