Frame (networking)
A frame is a digital
A frame typically includes frame synchronization features consisting of a sequence of bits or symbols that indicate to the receiver the beginning and end of the payload data within the stream of symbols or bits it receives. If a receiver is connected to the system during frame transmission, it ignores the data until it detects a new frame synchronization sequence.
Packet switching
In the
Often, frames of several different sizes are nested inside each other. For example, when using Point-to-Point Protocol (PPP) over asynchronous serial communication, the eight bits of each individual byte are framed by start and stop bits,[3][4] the payload data bytes in a network packet are framed by the header and footer, and several packets can be framed with frame boundary octets.[5]
Time-division multiplex
In telecommunications, specifically in
See also
References
- ^ "Data Link Layer (Layer 2)". The TCP/IP Guide. 2005-09-20. Retrieved 2010-01-31.
- .
- ^ David S.Lawyer and Greg Hankins. "Serial HOWTO". Section "20.4 Forming a Byte (Framing)". 2011. quote: "... a start bit and a stop bit to mark the beginning and end of a byte. This is called framing ... Don't confuse this type of framing with the framing used for a packet of bytes on a network."
- ^ MATLAB External Interfaces. Section "Serial Data Format". quote: "... one start bit... parity bit ... stop bit[s] ... called framing bits because they frame the data bits."
- ^ RFC 1661 "The Point-to-Point Protocol (PPP)" quote: "A packet is usually mapped to a frame; the exceptions are when data link layer fragmentation is being performed, or when multiple packets are incorporated into a single frame."