Viewing Historical Performance Data

Viewing DS3 or OC-3 Interface Performance Manager Data

Line Chart Tab

Bar Chart Tab

Table Display Tab

Missed Polls

Viewing ATM over ADSL over DMT Interface Performance Manager Data

Viewing Historical Performance Data

There are two different ways to view performance data in the Cisco Digital Subscriber Line Manager (CDM): through the Performance Manager, or through the Performance menu option. The Performance Manager displays historical data as well as current data in the form of a line chart, bar chart, or table; the Performance menu displays only current data in a raw numerical format. You access both performance options through the Map Viewer (Viewer) application. Open the Performance Manager within the Physical view; open the Performance option within the CDM Manager view.

This chapter describes how to view performance data on the following objects:

Viewing DS3 or OC-3 Interface Performance Manager Data

You can open the Performance Manager within the Map Viewer (Viewer) application. After you open the Map Viewer application, perform the following steps:

Step 1 In the Map Viewer application, within the Physical view, right-click an interface (DS3 or OC-3) and select Tools > Performance Manager, as shown in Figure 9-1.

Figure 9-1: Opening the Performance Manager on a DS3 or OC-3 Interface

The Performance Manager window appears, with the Line Chart tab displayed by default (Figure 9-2).

Figure 9-2: DS3 Interface Performance Window---Line Chart Tab

The Performance Manager window consists of three left areas, and three tabbed sections at right. Select the parameters you want from the left areas.

Step 2 From the M onitored Attributes list, select the attribute you want to monitor. You can select multiple contiguous attributes in a list by holding down the Shift key and then selecting the first and last attributes in the list. You can select multiple individual attributes by holding down the Ctrl key and clicking on individual items. Information for all selected attributes is shown in the table display. Only the first selected attribute is shown in the line chart or bar chart.

In the Time Period area, select the time parameters.

Step 3 Set the Start Date. Enter the date on which you want to begin viewing performance data in the S tart Date entry boxes. The format must be mm/dd/yyyy.

Step 4 Set the Start Time. Enter the time you want the performance data to start on in the S tart Time data entry boxes. Set a start time and an end time using the 24 hour clock notation. The times are inclusive.

Step 5 Set the End Date. You have two options when setting the end date. Enter the date on which you want to stop viewing performance data in the E nd Date entry boxes. The format must be mm/dd/yyyy. Or, select the Now checkbox to view the data from the selected start date to the current time. By selecting this option, you need not update the End Date and Time fields.

Step 6 Set the End Time. You have two options when setting the end time. Enter the end date on which you wish to stop viewing performance data in the E nd Time entry boxes. The format must be mm/dd/yyyy. Or, select the N ow checkbox to view the data from the selected start date to the current time. By selecting this option, you do not have to update the end date and time fields.

Step 7 From the drop down list, select the Summary interval. The summary interval is the period of time over which the rule is applied. This varies according to the attribute selected. You can select the Raw option, which displays performance data in its most detailed format, not summarized.

Note If you select Raw, the bar chart view is not available, and the Summary Rule option is grayed out.

Step 8 Click Refresh Screen. This initiates your request for data. Refresh Screen is blue when it is available for selection and grayed out when not available. Refresh Screen is available for selection if Now is selected or if any criteria has changed and you have moved the cursor away from the changed value (for example, by pressing the Tab key or by using the mouse).

A line chart of the performance information you requested is displayed at right. You can click on any of the three tabs to display your data differently.

Note The performance information corresponds to the attributes' raw values. If you select a summary period, the information is displayed according to the summary rule. No summary period is associated with raw data.

Monitored Attributes

The Monitored Attributes list at left allows you to select the following options (see Figure 9-2):

Section Errored Seconds---Number of errored seconds encountered by a SONET section in the latest 15-minute interval.

Section Severely Errored Seconds---Number of severely errored seconds encountered by a SONET section in the latest 15-minute interval.

Section Severely Errored Framing Seconds---Number of severely errored framing seconds encountered by a SONET section in the latest 15-minute interval.

Section Coding Violations---Number of coding violations encountered by a SONET section in the latest 15-minute interval.

Line Errored Seconds---Number of errored seconds encountered by a SONET line in the latest 15-minute interval.

Line Severely Errored Seconds---Number of severely errored seconds encountered by a SONET line in the latest 15-minute interval.

Line Unavailable Seconds---Number of unavailable seconds encountered by a SONET line in the latest 15-minute interval.

Line Coding Violations---Number of coding violations encountered by a SONET line in the latest 15-minute interval.

Line Chart Tab

The Line Chart tab displays the retrieved data in a graphical format (see Figure 9-2). The X-axis depicts the time at which the polling was done, and the Y-axis depicts the value retrieved or the value when the equipment did not respond properly.

Further information regarding the element, units, and missed polls is provided, using the appropriate color coding displayed at the top of the chart. Blue represents the values retrieved and red identifies any polled values missed.

Bar Chart Tab

The information on this tab is shown as a bar chart with the retrieved data (see Figure 9-2). Blue represents the values retrieved and red identifies any polled values missed.

Table Display Tab

This tab displays the data retrieved in a tabular format (see Figure 9-2). The first column shows the time of polling, and the second column shows the retrieved values. Blue represents the values retrieved and red identifies any polled values missed.

Missed Polls

In some circumstances, possibly due to Cisco EMF being shut down or heavy network loads, an object may fail to be monitored. This is known as a missed poll. All missed polls are indicated by a yellow point on Performance Manager graphs and charts. The last valid value collected is shown. A missed poll affects the summary data and you should not rely upon such data.

Performance Manager graphs and charts also indicate when an attribute started and stopped being polled due to history storage criteria being added, edited, or removed. Start and stop polling events are shown in charts and tables. The start polling events point is shown in green, and the stop polling events point is shown in red.

Note A polling events key appears for a selection.

Viewing ATM over ADSL over DMT Interface Performance Manager Data

When you deploy a DMT line card, four ATM over ADSL over DMT interfaces are created automatically. For simplification, these interfaces are generally referred to as DMT interfaces throughout the CDM software. In a sense, the three technologies are combined in one interface. You can view performance information for any one of these technologies by selecting the one desired in the Performance Manager list box.

You can open the Performance Manager within the Map Viewer (Viewer) application. After you have opened one of these applications, perform the following steps:

Step 1 In the Map Viewer application, within the Physical view, right-click a DMT interface and select
Tools > Performance Manager (Figure 9-3).

Figure 9-3: Opening the Performance Manager on a DMT Interface

The Performance Manager window appears, with the Line Chart tab displayed by default (Figure 9-4).

Figure 9-4: DMT Interface Performance Window---Line Chart Tab

The Performance Manager window consists of three left areas, and three tabbed sections at right. Select the parameters you want from the left areas.

Step 2 From the M onitored Attributes list, select the attribute you want to monitor. This list includes attributes for ATM, ADSL, and DMT interfaces. You can select multiple contiguous attributes in a list by holding down the Shift key and then selecting the first and last attributes in the list. You can select multiple individual attributes by holding down the Ctrl key and clicking on individual items. Information for all selected attributes is shown in the table display. Only the first selected attribute is shown in the line chart or bar chart.

In the Time Period area, select the time parameters.

Step 3 Set the Start Date. Enter the date on which you want to begin viewing performance data in the S tart Date entry boxes. The format must be mm/dd/yyyy.

Step 4 Set the End Date. You have two options when setting the end date. Enter the date on which you want to stop viewing performance data in the E nd Date entry boxes. The format must be mm/dd/yyyy. Or, select the Now checkbox to view the data from the selected start date to the current time. By selecting this option, you need not update the end date and time fields.

Step 5 Set the Start Time. Enter the time when you want the performance data to start in the S tart Time data entry boxes. Set a start time and an end time using the 24 hour clock notation. The times are inclusive.

Step 7 From the drop-down list, select the Summary interval. The summary interval is the period of time over which the rule is applied. This varies according to the attribute selected. You can select the Raw option, which displays performance data in its most detailed format, not summarized.

Note If you select Raw, the bar chart view is not available, and the Summary Rule option is grayed out.

Step 9 A line chart of the performance information you requested appears at right. You can click on any of the three tabs to display your data differently.

For additional information on this window, refer to the following sections:

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