What is Caching, and how does it work?
Caching is the temporary storage of content, for a faster access to the data at a later time.
The best-known form of caching is done in your browser. The so-called browser cache contains data from previously visited websites, which do not have to be retrieved from the server again at a later page request but is already available locally.
Another form is caching on pages of delivering servers: Rather than another database query, an already existing result from the cache can be delivered to the recipient.
We also use a combined variant: In a network with different offices the same video download would lead to an unnecessary network load. Our solution is that users query their video material to a local cache box. Once it is present, it will be delivered, if not, it will be requested from the main server. This caching on cache boxes means that each file is transferred only once between the main server and the office cache box, no matter how many users request the file in the future.
Caching primarily means conserving resources, namely the CPU, memory, and the network itself. Any type of data can be cached: whole websites, database, and media requests are possible. In our case these are mainly terabytes of video footage which are delivered daily to our customers by streams.
What if the cache is full?
Cached data are either only for a predetermined time in the cache or until the allocated storage for this data is full. If this happens, the least recently requested data is overwritten by new data.
If many receivers in the same network want to receive a stream, the peer-to-peer technology can be used to relieve the network. With Peer-to-Peer streaming we offer a state-of-the-art solution in a user-friendly environment.
To relieve the streaming server, it sends a signal only once, which can be picked up by a plurality of receivers (such as radio), without multiplying the data transmission rate at the sender by the number of recipients. This method is called multicast.
Webcasting is an innovative way of communication to deliver internal and external objectives with video and presentation. Simplex Pro is the production studio of the simplex platform to start professional webcasts as on-demand or live version with a few clicks and stream to the desired target audience.
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