Data Digest Error question

["Prasenjit Sarkar" <psarkar@almaden.ibm.com>]

This question relates to how the target handles data digest errors for data
pdus.

The spec says the target has to send a reject pdu with the attached pdu
header
+ (recovery R2T OR delivery subsystem failure status)

Why do we need two mechanisms? Wouldnt the pdu header indicate what needed
to be transmitted? Maybe a word of motivation might help.


   Prasenjit Sarkar
   Research Staff Member
   IBM Almaden Research
   San Jose