At 10:12 AM 11/12/01, [EMAIL PROTECTED] wrote: >Ether normally is connectionless and unreliable, so the frame would be >dropped by the receiver if an error is detected. A higher layer protocol >will have to request transmission from the source. > >However, LLC type 2 service (used primarily for SNA) provides reliable,
FYI, the reliability of LLC Type 2 is usually end-to-end (host-to-host). An end-station host would retransmit if a frame didn't get acknowledged, not a router or bridge. When is that not the case? (A CID-type question. ;-) By the way, LLC Type 2 is also used by NetBEUI, in addition to SNA. Priscilla >connection oriented service over ether. That's not particularly >relevant, though in your scenario, but I always found it an interesting >point. :-) > >Todd Carswell wrote: > > > > > > PCA-------B1-----------B2--------PCB > > >Question 2: There's an ETHERNET connection between B1 and B2. The bridges > > are still using Transparent Bridging and PCA sends a packet to PCB. Again, > > the frame has an error. Will B1 be the device to handle the >retransmission? > > >-- >Jason > >Boson BCMSN1 BSCN2 BSCI2 practice tests >E-Quizware CCIE practice test ________________________ Priscilla Oppenheimer http://www.priscilla.com Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=25975&t=25928 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
