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Error Trend Monitor

The Error Trend monitor displays inbound and outbound error trends on the node you selected in the View pane. This monitor is available in the Traffic tab.

This topic describes:

Error Trend

A line graph shows the rate inbound and outbound errors over time. The horizontal axis shows the times when samples were taken. The vertical axis shows errors per second.

Note:

After a device is discovered, trend data does not appear immediately—it appears only after three polling periods have elapsed.

You can perform the following actions on the line graph:

  • Change the time period over which to display the traffic trends by selecting a time period from the list in the upper right corner.

  • Highlight a line in the graph by mousing over the line’s legend.

  • Remove or restore a line by clicking its legend.

  • Display a numeric value by mousing over a data point.

Error Trend Details

The Error Trend details window displays detailed information about errors on the node you selected in the View pane. It contains the following elements:

  • A line graph shows the rate of errors over time. The horizontal axis shows the times when samples were taken. The vertical axis shows errors.

    Note:

    After a device is discovered, trend data does not appear immediately—it appears only after three polling periods have elapsed.

    You can perform the following actions on the line graph:

    • Change the time period over which to display the traffic trends by selecting a time period from the list in the upper right corner.

    • Highlight a line in the graph by mousing over the line’s legend.

    • Remove or restore a line by clicking its legend.

    • Display a numeric value by mousing over a data point.

  • Error Trend Details table—Shows detailed information about the data gathered at each sample. For information about this table, see Table 1

  • Error Trend Additional Details table—Shows additional error trend details and enables you to display them on the graph. For information about this table, see Table 2.

Table 1: Error Trend Details Table

Column

Description

Time

Time when a data sample was taken from devices.

Errors In

Number of inbound errors reported in the sample.

Errors Out

Number of outbound errors reported in the sample.

CRC Errors In

Number of inbound cyclic redundancy check (CRC) errors reported in the sample.

CRC Errors Out

Number of outbound CRC errors reported in the sample.
Table 2: Error Trend Additional Details Table

Column

Description

Series Name

Name of the data series.

Series Value

Value of the data series.

Show

Select the check box to display the series on the graph. Clear the check box to remove the series from the graph.

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