Master/slave switching system and method for multicast source

A technology of active/standby switchover and multicast source, which is applied in the transmission system, digital transmission system, data exchange network, etc., can solve problems such as unstable multicast source, failure of users to receive multicast data, interruption of multicast services, etc. Achieve the effect of improving service quality
CN101192964AInactive Publication Date: 2008-06-04ZTE CORP
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
ZTE CORP
Publication Date
2008-06-04
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention discloses a master / slave switching system for multicast source, and a method thereof, which relate to multicasting transmission protection technology and are invented in order to solve a problem that the multicast source is not stable in the prior art. The invention comprises a multicast source server and a multicast agent server; and the multicast source server comprises a master server for multicast source and a standby server for multicast source. The multicast agent server is respectively connected with the multicast source server and the standby server for multicast source and is used for internally providing the master server for multicast source and the standby server for multicast source with cooperative interfaces and externally converting data stream source addresses of the master server for multicast source and of the standby server for multicast source into the same pubic IP address and forwarding the multicast source data stream. Through dual CPU hot-redundancy, the invention ensures multicast source data stream program is not interrupted and enhances stability of the multicast source and service quality of the multicasting program.
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Description

technical field

[0001] The invention relates to a protection technology for multicast transmission, in particular to a system and method for multicast source active / standby switching. Background technique

[0002] Multicast technology is a technology that can realize point-to-multipoint or multipoint-to-multipoint communication. The basic characteristics of multicast technology are described in RFC1112. Multicast technology can be used to conveniently transfer multimedia audio and video data from For the transmission from the server to multiple clients, no matter how many clients there are, the server only needs to send it once. It can be seen that the multicast technology can not only save network resources, but also reduce the workload of the server.

[0003] The group in multicast technology is a logical concept, not a fixed physical entity group. Any terminal that can access network resources can join the multicast group without being restricted by its own physical locat...

Claims

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