CS455 Syllabus
Intro to
Byte
-oriented (framing) protocols
Byte
-oriented framing methods
Byte-oriented Framing
:
Byte
-oriented
framing
transmits a serie of
bytes
in a
frame
A
number
of
byte
patterns
(= code !!)
have a
special
meaning
Example:
SYNC
(Synchronize)
STH
(Start of header)
STX
(Start of text)
EOT
(End of text)
And so on.
Byte-oriented
framing
often
use
:
The
ASCII code
to
encode
the
transmitted data
ASCII table:
Notice
these
important
codes
:
SYN
=
00010110 (16 Hex)
SOH
=
00000001 (01 Hex)
("start of header")
SOT
=
00000010 (02 Hex)
("start of text")
EOT
=
00000011 (03 Hex)
("end of text")