Flow control method and flow control device for network equipment and network equipment

Abstract

The invention discloses a flow control method and device for network equipment and network equipment. Based on the present invention, the logic device of the interface board can encapsulate the sending completion information of the data Ethernet message in the outgoing direction into the flow control Ethernet message for reporting, and the flow control Ethernet message can be forwarded to the logic device of the main board by the Ethernet switch chip of the main board , the logic device of the main board can obtain the sending completion information by analyzing the flow control Ethernet message, and encapsulate it in the flow control message and write it into the memory of the main board for the CPU of the main board to read immediately, so that the CPU of the main board can perceive in time Whether the data Ethernet packet in the direction is congested, which is beneficial to accurately realize the QOS in the outbound direction of the network device. Moreover, the present invention can also prevent the transmission of the data Ethernet message from being affected by the report of sending completion information, and realize the loose coupling of the CPU to the sending and receiving of the data Ethernet message.

Description

technical field [0001] The invention relates to network technology, in particular to a flow control method for network equipment, a flow control device for network equipment, and network equipment. Background technique [0002] The network equipment can adopt the Ethernet bus architecture, and, in the Ethernet bus architecture, the Ethernet data channel between the CPU of the main board and the Ethernet switching chip of the main board, the Ethernet data channel between the Ethernet switching chip of the main board and the logic device of the interface board, And the interface data channel between the logic device of the interface board and the interface chip of the interface board may have a situation that the physical bandwidth does not match each other. [0003] Therefore, network devices are prone to congestion of data packets in the outgoing direction. If the CPU of the mainboard cannot sense the aforementioned congestion and relieve the aforementioned congestion in ti...

AI Technical Summary

Problems solved by technology

[0002] The network equipment can adopt the Ethernet bus architecture, and, in the Ethernet bus architecture, the Ethernet data channel between the CPU of the main board and the Ethernet switching chip of the main board, the Ethernet data channel between the Ethernet switching chip of the main board and the logic device of the interface board, And the interface data channel between the logic device of the interface board and the interface chip of the interface board may have the situation that the physical bandwidth does not match each other

[0003] Therefore, network devices are prone to congestion of data packets in the outbound direction

If the CPU of the main board cannot sense the aforementioned congestion and the lifting of the aforementioned congestion in a timely manner, it will be difficult to accurately realize the QOS (Quality of Service, Quality of Service) in the outbound direction of the network equipment.

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