Howdy All,
 
At the last FCP-4 working group meeting I presented a proposal to request the use of continuously increasing SEQ_CNT (CISC) for Class 3 service.
 
While most believe requiring continuously increasing SEQ_CNT for Class 3 service is a good idea, one vendor indicated that none of their implementations support CISC, and another vendor was concerned about the requirement.
 
As such, we have the following options:
 
a. require CISC for Class 3 service. This means that existing implementations can claim compliance to a prior standard (e.g., FCP-3);
b. specify that CISC should be used for Class 3 service;
c. no change (i.e., CISC is not required except for streamed Sequences).
 
My preference would be option a.
 
What say ye?
 
...Dave
 
(no disclaimer)