EXFO ETS-1000G - Manual (Page 29)

10 Gigabit Ethernet Analyzer 19
4 RFC 2544
RFC 2544 methodology define a set of tests which are used for evaluating
key features of network devices and checking conformance of the services
being rendered to the specifications stipulated in SLA between
telecommunications operators and clients.
Owing to an opportunity of making an analysis of throughput, latency,
frame loss rate and limit load, these methods are currently are a de facto
standard for evaluating the performance of Ethernet-based networks.
ETS-1000G allows performing four standard tests in compliance with RFC
2544.
Throughput Analysis
Note: An analysis of throughput is performed for determining the maximum
possible switching speed for network elements in transport Ethernet-based
networks.
Throughput is the maximum data rate at which the quantity of frames 1 that
have been transferred via DUT is equal to the quantity of frames that have
been sent to it from the test equipment. During an analysis of throughput, a
number of packets are sent to the DUT input with the minimum interframe
gap
2
. Then the quantity of packets that have been received from the output
port of DUT is calculated. If it is less than the quantity of transmitted
packets, the interframe gap will be increased and the test will be repeated.
The binary search method is used for determining throughput.
1
The terms a frame and a packet are used in descriptions as synonyms.
2 Hereinafter it is assumed that the tester automatically executes all the operations under consideration.