> Getting some good info here.. So cisco has their own implementation of >HDLC.. is it compatible with other non-cisco devices (nothing particular in >mind here)? What does the control field of a cisco HDLC frame look like? >Thanks!!! > >Jeremy It's a little unfair to deprecate an "implementation" of HDLC. HDLC, as the standard is written, is much more an architecture for data link protocols than a protocol to be implemented and have multivendor compatibility. LAP, LAP-B, LAP-D, and LAP-F are all HDLC subsets that I would expect to be interoperable. Cisco, Codex/Motorola, Ascom/Timeplex, etc., would have made me much happier if they simply had said they had proprietary link protocols with HDLC-style framing. Remember that PPP wasn't around at the time these protocols were deployed. X.25 LAP (perhaps not LAP-B) was, but, again, link-level retransmission is not necessarily desirable. _________________________________ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
