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Throughput Results - Global Stream Summary
QoS
QoS values are based on packet statistic thresholds for roundtrip delay, jitter, frame loss, and IP checksum
from the ITU-T Y.1541 standard. Below is a list of IP network QoS class definitions and network performance
objectives from Y.1541.
"U" denotes "unspecified" or "unbounded" and signifies that no objective was established for this parameter
and default Y.1541 objectives do not apply. Parameters designated with "U" are occasionally inconsistent and
poor.
IP Network QoS Class Definitions and Network Performance Objectives
(Classes 0-3)
Network Per-
formance
Parameter
QoS Classes
Class 0 Class 1 Class 2 Class 3
IPTD ≤ 200 ms/2
(100 ms
one-way) ≤ 800 ms/2 (400
ms one-way) AND
> 200 ms/2 ≤ 200 ms/2
(100 ms
one-way) ≤ 800 ms/2 (400
ms one-way) AND
> 200 ms/2
IPDV ≤ 50ms ≤ 50ms U U
IPLR > 1/100,000
AND ≤
1/1000 > 1/100,000 AND ≤
1/1000 > 1/100,000
AND ≤
1/1000 > 1/100,000 AND ≤
1/1000
IPER >
1/1,000,000
AND ≤
1/10,000 > 1/1,000,000 AND
≤ 1/10,000 >
1/1,000,000
AND ≤
1/10,000 > 1/1,000,000 AND
≤ 1/10,000
IP Network QoS Class Definitions and Network Performance Objectives
(Classes 4-7)