Abstract: In Video Surveillance Networking System， the traditional independent deployed media servers have many problems caused by concurrency of access including serious I/O load, insufficient network bandwidth, uneven distribution of load and so on. By the combination of overall scheduling, unified management and performance optimization, the cloud based media server can maximize the performance and resource utilization. The overall architecture of cloud media server was designed and the load evaluation method of the media server in server cluster was also designed based on this architecture. The experimental results show that compared with the traditional media server architecture, the cloud media server can handle the load balancing and fault tolerance switching well. It can deal with the sudden high concurrent access to the video sources of media servers.
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Key words: cloud media, SIP, load balance, media server, load evaluation method