Question 6/XVIII - Network performance objectives for ISDN circuit mode
information transfer

Note - Specific reference should be made to Recommendation G.821.

1. What speed, accuracy, and dependability performance parameters should
be recommended for circuit mode information transfer through ISDNs?

Note - The digital network performance objectives recommended should be
generally applicable to all services.

2. What methodologies can be used to relate performance at 64 kbit/s
rate to performance at higher bit rates?

Note - The methodology may be transmission media dependent, therefore
close liaison with other concerned Study Groups is required.

3. What reference connections should be used in the consideration of
values for these parameters?

Note - Specific reference should be made to Recommendation G.801.

4. What values and measurement conditions should be recommended for
circuit mode information transfer performance through ISDNs?

5. How does the distribution of error bursts influence the performance
objectives?

6. What rules should be adopted for apportioning the overall values to
the constituent parts of the connections?

Note - Specific reference should be made to Recommendation G.921.

7. What are the implications of the circuit mode information transfer
performance requirements on broadband ISDN performance requirements?

8. What guidance can be given to the other competent Study Groups
regarding use of the recommended values?