CONTENTS

 1     Introduction
 2     References
 3     Abbreviations
 4     Call set-up delay
        4.1     definition of call set-up delay at a single section boundary
        4.2     definition call set-up delay between two section boundaries
        4.3     Values
 5     Data packet transfer delay
        5.1     data packet transfer delay definition
        5.2     Values
 6     Throughput parameters
        6.1     throughput definition
        6.2     steady-state throughput definition
        6.3     throughput capacity definition
        6.4     Values
 7     Call clearing delay
        7.1     Clear indication delay
        7.2     clear confirmation delay
Annex A – Factors to be specified in reporting throughput performance
        A.1     Signalling rates
        A.2     Interface windows
        A.3     Packet length
        A.4     Additional virtual connections
        A.5     Time-of-day
        A.6     Direction
        A.7     Throughput class
        A.8     D-bit usage
        A.9     Delay
       A.10     Reporting throughput capacity
Annex B – Ancillary information on throughput measurement and the application of throughput capacity values
Annex C – Representative end-to-end speed of service performance
        C.1     Definition of the example end-to-end connections
        C.2     End-to-end speed of service performance for the type 1 and type 2 configuration examples
        C.3     Methods for calculating mean and 95% points of delays and throughputs of packet-switched services with two or more concatenated portions
        C.4     Notes on key assumptions, results, and implications
Reference
Supplement No. 1 to Recommendation X.135 – Some test results from specific national and international portions
 1     Telstra network testing
        1.1     International B portion call set-up delay values
        1.2     International B portion throughput values (9600 bit/s)
        1.3     International B portion throughput values (64 000 bit/s)
        1.4     International B portion data packet transfer delay values
 2     DATEX-P network testing
        2.1     National A portion delay and throughput values
        2.2     National B portion delay and throughput values