viola@idacom.cs.ubc.ca (Viola Lee) (09/09/89)
Hi, I have some questions about the user data of some pdus in the following protocols. Are the following pdus correct if all fields are correct except for the fact that the user data field is not present? Please give references of where you obtain your answers from. ----------------------------------------------------------------------------- Protocol | Data Related PDU |(Y/N) | References (CCITT, ISO, etc) ---------|----------------------------|------|------------------------------- LAPB | I frame | | | | | Network | Data and Interrupt Packets | | | | | Transport| DT and ED TPDUs | | | | | Session | DT and EX SPDUs | | ----------------------------------------------------------------------------- Thanks in advance, viola