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

A satellite network and broadcast receiving technology, which is applied in the field of Ethernet message bearing on satellite channels, can solve problems affecting data exchange, network storms, and business differences, and achieve the effects of solving loopback problems, preventing loops, and suppressing broadcast storms

Active Publication Date: 2019-12-31
四川安迪科技实业有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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

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Embodiment Construction

[0045] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0046] The relevant technical means of this application are applied to such as figure 1 In the star satellite network topology shown.

[0047] When one of the end stations lan side receives an Ethernet message to be sent, the Ethernet message includes any one of broadcast, multicast or unknown unicast message, learns the source MAC address of the message, and then sends it to the satellite side. After the message sent by the end station is received and transferred by the central station, it will be sent to the satellite again, and all the end stations connected to the satellite network will receive the message, but for the end station that originally sent the Ethernet message , this part of the message should not be transmitted backwards, so it needs to be processed effectively.

[0048] Such as figure 2 The above is the first embodiment of the present applicatio...

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PUM

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Abstract

The invention provides a broadcast pruning method and system and a receiving method and device for a satellite network, and the method comprises the steps: a source MAC of an Ethernet message is learned when an end station lan port receives the Ethernet message needing to be transmitted; the Ethernet message is sent to the satellite link, so that the central station receives the Ethernet message and sends the Ethernet message to the satellite link again; when the Ethernet message is received, the end station data exchange chip triggers interruption, the end station CPU extracts the source MACof the Ethernet message and inquires whether the source MAC is learned at the lan port or not: if the source MAC is learned at the lan port, the source MAC is not learned at the sat port; if the source MAC is not learned at the lan port, the source MAC is learned at the sat port, wherein the lan port and the sat port refer to the lan port and the sat port of the end station data exchange chip; after the interruption of the end station data exchange chip is completed, the data exchange chip judges whether a source MAC is learned at a sat port or not; if so, the data exchange chip receives an Ethernet message; and if not, the Ethernet message is discarded. According to the invention, the loopback problem caused by satellite link characteristics is effectively solved, and the broadcast stormof the satellite link is suppressed.

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 ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/185
CPCH04B7/18519H04B7/18526H04B7/18584
Inventor 靳年鑫
Owner 四川安迪科技实业有限公司
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