Fluke Series II Basic Operation, Conducting a Throughput Test, OneTouch Series, Users Manual

OneTouch Series II

Users Manual

Basic Operation

For the ITO and xDSL Throughput Tests, starting the test causes the following actions:

1.The local unit (ATU-R for xDSL) sends an ARP request to the remote unit (ATU-C for xDSL) specified in its Remote IP Address (Target ATU-C IP in xDSL) and waits for a response to that request.

2.After the ARP response is received, the local unit (ATU-R for xDSL) requests the remote unit (ATU-C for xDSL) to generate traffic using the local unit’s (ATU-R for xDSL) user-configured duration, data pattern, rate, and frame length. The local unit (ATU-R for xDSL) waits for the remote unit (ATU-C for xDSL) to acknowledge the receipt of the traffic generation request.

The number of frames per second for the upstream and downstream bit rates is also calculated and displayed. The Ethernet preamble and inter-frame gap are used in this calculation and the number of frames per second is rounded up.

3.After the remote unit (ATU-C for xDSL) acknowledges the receipt of the traffic generation request, both units zero their counters and setup for

tracking the number of packets received from the other unit. Then, both units generate the user- configured traffic for the specified duration. The traffic generated is IP level data-grams, which allows routing. Both units transmit traffic simultaneously.

4.After the user-configured duration, the local unit (ATU-R for xDSL) requests the remote unit (ATU-C for xDSL) to send the number of packets counted from the local unit (ATU-R for xDSL). Knowing the number of packets sent and received from the remote (ATU-C for xDSL) and itself, the local unit (ATU-R for xDSL) calculates and displays the results.

Conducting a Throughput Test

The Throughput Test is part of the Internetwork Throughput Option (ITO) or xDSL. The Throughput Test is a double-ended test of line or network bandwidth that requires two Network Assistants. After configuring each unit, you connect the remote and local units to your network in locations that allow you to test between the two units. Figure 7-2 shows the relationship between the local unit (ATU-R unit, for xDSL) and remote (A, B, C, or

D)units (ATU-C unit, for xDSL). Figure 7-3 shows the equivalent connections for xDSL.

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