In computer networking, out-of-band data is the data transferred through a stream that is independent from the main in-band data stream. An out-of-band data mechanism provides a conceptually independent channel, which allows any data sent via that mechanism to be kept separate from in-band data. The out-of-band data mechanism should be provided as an inherent characteristic of the data channel and transmission protocol, rather than requiring a separate channel and endpoints to be established.[1] The term "out-of-band data" probably derives from out-of-band signaling, as used in the telecommunications industry.[2]
- ^ Len (October 20, 2011). "Out of band data, TCP Urgent mode and overlapped I/O". Serverframework.com. Retrieved 21 February 2014.
- ^ "Chapter 11: Signaling Systems". George Mason University. Retrieved 21 February 2014.