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IM AQ1300-01EN
1.7 Reception Features
Base Filter
You can use the base filter to specify the conditions for selecting the received frames to take statistics
from.
You can set the base filter when Manual has been selected in the Test menu and the test mode is
Traffic Test, QoS Test, or BERT.
There are two filter types that you can choose from: field filtering, in which you select the field of the
protocol that you want take statistics of, and offset filtering, in which you set the filter location and
pattern.
There are two base filters. You can combine them and set whether to take the statistics of frames that
pass or do not pass through them.
QoS Channel Measurement
When Manual has been selected in the Test menu, you can measure up to eight QoS channels (classes)
separately; when Auto or Auto(Remote) has been selected in the Test menu, you can measure up to
four. By taking statistics for different flows, you can evaluate the priority control of a network device.
The QoS filter operates on the frames that pass through the base filters.
You can use the QoS filter when Manual has been selected in the Test menu and the test mode is QoS
Test.
There are two filter types that you can choose from: field filtering, in which you select the field of the
protocol that you want take statistics of, and offset filtering, in which you set the filter location and
pattern.
There are two QoS filters, and the AQ1300/AQ1301 takes the statistics of the frames that pass through
them.
Latency Measurement
If you set the other device to Loopback Test mode, the AQ1300/AQ1301 can insert a timestamp in a
Tx frame and measure the latency by determining the difference between the timestamp and the time
that the frame comes back.
Gap Measurement
The AQ1300/AQ1301 measures the maximum, minimum, and average gaps (IFGs) between packets.
The values are displayed both in µs and bits.
Note
Frames whose length is between 48 and 9999 bytes can be received. Frames whose length exceeds 9999
bytes are detected as oversized frames.
When Test Interface is set to SFP(FE), frames whose length is between 48 and 2048 bytes are guaranteed
to be received.
