Steven, There may be some scholars lurking around that can more precicely define bit-serial than I. I think the term is interchangeable with bit-synchronous. Bit-synchronous contrasts with older protocols that are binary-syncnronous (bisynch) or, better termed, character-oriented. Character-oriented protocols transmit chunks of data in bytes (was it 256 bit chunks or 256 byte chunks?), which are acknowleged and flow controlled with a set of pre-defined control characters (I believe this is the origin of the ACK you still see in protocols like PPP).
Bit-synchronous is what you more commonly see today. I think the classic DS-1 frame qualifies as bit-synchronous. You have frames which consist of bits (that form fields) that have specific meaning (e.g. a flag or delimiter of 01111110). Of course, none of this should be confused with bit synchronization, which is simply ensuring that a bit is sampled at the correct time and interval to maintain synchronization between two devices. Steven A. Ridder wrote: > > Can anyone define what a WAN protocol that operates in > "bit-serial mode" > means? Thanks in advance... > > -- > RFC 1149 Compliant. > > > .? > > Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=34674&t=34629 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
