SMC Networks ADSL Barricade SMC7204BRA User Manual page 154

Viewing DSL Line Information
At the bottom of the page, the [Detailed Interval Statistic
(Past 24 hrs)] table displays links you can click on to display
detailed data for each 15-minute interval in the past 24 hours.
For example, when you click on [1-4], the data appear for the 16
intervals (15-minutes each) that make up the previous 4 hours.
Figure 56 shows an example.
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Figure 56. DSL Interval Statistics Page