Broadcast pruning method and system, receiving method and device for satellite network

Abstract

The application provides a method and system for broadcast pruning of a satellite network, a receiving method and a device. The method includes learning the source MAC of the Ethernet message when the lan port of the end station receives the Ethernet message to be sent; sending the Ethernet message to Satellite link, so that the central station receives the Ethernet message and sends it to the satellite link again; when receiving the Ethernet message, the data exchange chip of the end station triggers an interruption, and the CPU of the end station extracts the source MAC of the Ethernet message, and Query whether the source MAC has been learned on the lan port: if it has been learned on the lan port, the source MAC will not be learned on the sat port; if it has not been learned on the lan port, the source MAC will be learned on the sat port; The port refers to the lan port and the sat port of the end station data exchange chip; after the end station data exchange chip is interrupted, the data exchange chip judges whether the source MAC is learned on the sat port: if yes, accept the Ethernet message; if not, discard it Ethernet packets. The application effectively solves the loopback problem caused by the characteristics of the satellite link, and suppresses the broadcast storm of the satellite link.

Description

technical field [0001] The invention relates to an Ethernet message bearing technology of a satellite channel, in particular to a satellite network broadcast pruning method and system, a receiving method and a device. Background technique [0002] In the star satellite frequency division system network, both the remote station and the central station work in the switching mode. Both the central station and the remote station are devices that send and receive multiple times, and the central station is responsible for relaying data messages from satellites. [0003] in such as figure 1 In the satellite network topology shown, when PC1 sends a broadcast, multicast or unknown unicast message to the satellite side through the remote station 1, the central station will resend the message to the satellite side after being transferred by the data exchange center of the central station , all remote stations will receive the message. The remote station 1 is equivalent to forming a ...

AI Technical Summary

Problems solved by technology

The remote station 1 is equivalent to forming a loop, which affects the local data exchange, causing business differences at the slightest, and causing network storms at the worst

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