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Historical Alarms

About the Historical Alarms Page

To access this page, click the Monitor tab and then select Alarms>Historical from the left-nav bar.

The Historical Alarms page displays the table of historical alarms in your network. Historical alarms are alarms that have been cleared and are no longer outstanding. You can filter the table to see historical alarms for a specific device or a subset of devices.

Historical alarms provide you with a clear view of the history of a device so that you can spot any issues or trends that require attention. For example, historical alarms can reveal link flapping or other regularly-occurring issues.

Tasks You Can Perform

You can view historical alarms in the network or on a device from this page.

Field Descriptions

Table 10 explains the headings in the Historical Alarms page.

Table 10: Fields for the Historical Alarms Page

Field

Description

Device

See Fields for the Current Alarms Page.

Description

See Fields for the Current Alarms Page.

Source

See Fields for the Current Alarms Page.

Time Raised

See Fields for the Current Alarms Page.

Time Cleared

The date and time when the alarm was cleared, in the following format:

YYYY-MM-DD HH:MM:SS ZZZZ

  • YYYY is the year

  • MM is the month

  • DD is the day

  • HH is the hour

  • MM is the minute

  • SS is the second

  • ZZZZ is the time zone represented as a UTC offset (for example, Eastern Daylight Time is specified as -0400)

Severity

See Fields for the Current Alarms Page.

Viewing Historical Alarms

Use this procedure to view historical alarms for a device.

Procedure

  1. Click the Monitor tab and then select Alarms>Historical from the left-nav bar.

    The Historical Alarms table is displayed:

    By default, the alarms are sorted first by Severity then by Time Raised.

    Note This table is updated automatically as alarms are cleared.

    Note It is normal to see the occasional duplicate alarm in this list.

  2. To see alarms for a particular device, use the standard table search function. See Working with Tables.

    The following example shows the table filtered for the specified IP address:

  3. To see more details on an alarm, select an alarm row and then click View.

    The Historical Alarm Details window appears:

  4. To sort, filter, copy, print, or save table entries, see Working with Tables.
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