Services
- Authentication
- Authorization
- Session restoration (checkpointing and recovery)
The session layer of the OSI model is responsible for session checkpointing and recovery. It allows information of different streams, perhaps originating from different sources, to be properly combined or synchronized.
An example application is web conferencing, in which the streams of audio and video must be synchronous to avoid so-called lip synch problems. Floor control ensures that the person displayed on screen is the current speaker.
Another application is in live TV programs, where streams of audio and video need to be seamlessly merged and transitioned from one to the other to avoid silent airtime or excessive overlap.
Read more about this topic: Session Layer
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—Jeanne Elium (20th century)
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—Karl Marx (1818–1883)
“Those services which the community will most readily pay for, it is most disagreeable to render.”
—Henry David Thoreau (1817–1862)