Method for detection of RP state in multicast network, device, RP device and multicast system

A state detection device and state detection technology, applied in the field of communication, can solve problems such as interruption of multicast data flow, loss of multicast messages, and large resource consumption, so as to improve safety and reliability, improve detection speed, and improve detection efficiency. efficiency effect
CN101778113BActive Publication Date: 2013-09-18RUIJIE NETWORKS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
RUIJIE NETWORKS CO LTD
Publication Date
2013-09-18

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Abstract

The invention discloses a method for detection of an RP state in a multicast network, a device, an RP device and a multicast system. The method comprises the following steps: sending a detection message with a sequential identity to an RP to be detected according to a preset sending frequency; and determining whether the RP to be detected fails or changes according to the continuity of the identity carried in a response message sent back from the RP to be detected. The device comprises a message sending module and a failure detection module. The system comprises a detection device and at least one RP device. Since the detection message with the sequential identity is sent to the RP to be detected according to the preset frequency, and the RP state is determined according to the real-time response of the RP to be detected, the embodiment of the invention can realize the rapid and accurate detection of the RP state, thereby effectively improving the convergence of the whole multicast network and enhancing the accuracy and reliability of data message transmission in the multicast network.
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Description

technical field

[0001] The embodiment of the present invention relates to the field of communication technologies, and in particular to a method and device for detecting RP status in a multicast network, an RP device and a multicast system. Background technique

[0002] As an effective IP transmission solution, multicast technology can save backbone network bandwidth and is applicable to services with large data transmission, such as emerging e-commerce, online conferences, online auctions, video on demand and distance teaching In services such as unicast, it can effectively avoid the high requirement of network bandwidth for unicast transmission. Therefore, multicast technology has been widely used.

[0003] In a multicast network, a multicast shared tree needs to be established to transmit packets, and the multicast shared tree is implemented through a multicast routing protocol. Among them, Protocol Independent Multicast Sparse Mode (PIM-SM) is a widely used multicast ro...

Claims

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