OAM (Operations, Administration and Management) message processing method and device

Abstract

The invention discloses an OAM (Operations, Administration and Management) message processing method and an OAM message processing device. The OAM message processing method comprises the steps that an OAM message searches a maintenance end point in an incoming packet processing engine unit or an outgoing packet processing engine unit, the information of the maintenance end point of the OAM message is sent to an OAM processing engine for processing after the information is obtained, a target outlet can be randomly designated according to the type of the message if the OAM message is a slow OAM message, similarly a target outlet can be randomly designated for alarm information detected according to the operation of a state machine in the OAM processing engine, the alarm information can be packaged into a message in a standard Ethernet format, then the OAM message with the information of the target outlet is transmitted to a chip forwarding module, and the chip forwarding module transmits the OAM message to a coprocessor corresponding to the information of the target outlet for processing. The OAM message processing method and the OAM message processing device have the advantages that the OAM message processing efficiency is greatly improved, the complexity of chip design is reduced, the costs of manpower and material resources are decreased and the popularization and the use are facilitated.

Description

technical field [0001] The invention relates to the communication field, in particular to a processing method and device for combining a chip and a coprocessor to jointly complete an OAM message. Background technique [0002] In the existing chip design, the OAM processing engine embedded in the chip generally only realizes the functions of link detection and state machine maintenance. When the OAM processing engine detects an alarm, it is completed by notifying a destination (such as CPU, FPGA) through an interrupt, but if the alarm detected by the OAM processing engine is an event that requires protection switching, the system needs to respond quickly and In this case, the general system manufacturer will use FPGA (Field Programmable Gate Array) to complete the protection switching, but OAM messages and other slow protocol messages (such as LBR messages, LTM messages, etc.) need to be sent to the CPU to complete the processing. Since the message from the embedded OAM proc...

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Problems solved by technology

However, because the network processor does not integrate the OAM processing mechanism, but uses FPGA to realize it, the system manufacturer must have an FPGA team, which will greatly increase the difficulty of developing the upper system software, and at the same time, because the upper system software needs to maintain the OAM state machine , which further increases the complexity of the upper-layer software; and because the coprocessor is an external device on the chip, the throughput and number of sessions of the OAM message will also be limited by the interface rate between the network processor and the coprocessor, reducing the OAM message document processing efficiency

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