Ethernet data processing method and system and optical transport network processing chip

Abstract

The embodiment of the invention provides an ethernet data processing method and system and an optical transport network processing chip. The ethernet data processing method comprises the following steps: receiving ethernet data through an Interlaken interface, and writing the ethernet data in a message buffer; receiving the request of a GFP (generic framing procedure) module for reading the message buffer by a bandwidth speed limiting module, and judging whether the bandwidth for reading the message buffer by the GFP module is more than the line-speed bandwidth of a GE / 10GE interface or not; if the bandwidth for reading the message buffer by the GFP module is more than the line-speed bandwidth of the GE / 10GE (gigabit ethernet / 10 gigabit ethernet) interface, inhibiting the GFP module from reading the message buffer until the bandwidth for reading the message buffer by the GFP module is less than or equal to the line-speed bandwidth of the GE / 10GE interface; and if the bandwidth for reading the message buffer by the GFP module is not more than the line-speed bandwidth of the GE / 10GE interface, allowing the GFP module to read the message buffer. According to the technical scheme of the invention, the grounding bandwidth of the GE / 10GE interface can be controlled precisely to be less than or equal to the line-speed bandwidth of the GE / 10GE interface so that the GE / 10GE interface reaches the line speed and the system performance is improved.

Description

technical field [0001] The invention relates to network communication technology, in particular to an Ethernet data processing method, system and optical transmission network processing chip. Background technique [0002] In the optical transport network (Optical Transport Network; OTN for short) chip technology field, Ethernet service bearing has become very common. Many GE / 10GE services are carried on the OTN network in a generic framing procedure (Generic Framing Procedure; GFP for short) manner. It is also common for the Ethernet data processing interface to use the Interlaken interface, and the interface of the OTN processing chip is no longer a GE / 10GE interface, but a GE / 10GE interface. However, the Ethernet container bandwidth of the OTN processing chip will be greater than the wire-speed bandwidth of the GE / 10GE interface. Considering that the landing bandwidth of the GE / 10GE interface cannot be higher than the wire-speed bandwidth of the corresponding GE / 10GE inte...

AI Technical Summary

Problems solved by technology

In practical applications, it is found that the bandwidth shaping of Ethernet data in the Ethernet processing chip cannot accurately control the landing bandwidth of the GE / 10GE interface to be less than or equal to the wire-speed bandwidth of the GE / 10GE interface, resulting in a bandwidth margin that makes the GE / 10GE interface The 10GE interface cannot reach the wire speed, which reduces the system performance

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