H3C Technologies H3C Intelligent Management Center - Manual (Page 372)

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{
Falling Event Index: Contains the index for a falling event.
{
Stat. Type: Contains two statistics period types in the Extension Alarm Group: Permanent and
Periodic.
{
Selecting a Permanent Stat. Type creates a permanent group with a sampling interval that is
based on the configured interval.
{
Selecting a Periodic Stat. Type creates a temporary statistical collection group. If Periodic is
selected, the Stat. Period must be specified (> Interval). The collection group disappears after
the Stat. Period has expired.
{
Stat. Period: Contains the number of samples IMC must collect for a Periodic Stat. Group for the
group expires.
{
Owner: Contains the name of the owner of the RMON statistics collection that is configured
when you add the interface to Extension Alarm Group collection.
{
Status: Indicates whether or not the alarm instance is active.
If the RMON Extension Alarm Group list contains multiple entries, the following navigational
aids may appear:
{
Click to page forward in the Extension Alarm Group list.
{
Click to page forward to the end of the Extension Alarm Group list.
{
Click to page backward in the Extension Alarm Group list.
{
Click to page backward to the front of the Extension Alarm Group list.
3. Click 8, 15, 50, 100, or 200 from the right side of the main pane to configure how many items per
page you want to view.
You can only view devices that they have been granted management access to.
Adding RMON extension alarm group entries
To add an alarm instance for the RMON Extension Alarm Group for the selected interfaces on the
device:
1. Click the RMON link located under the Device Management section of the right navigation tree on
the selected device's Device Details page.
2. Click the Extension Alarm Group tab located at the top of the RMON Stat Group page.
IMC displays all RMON extension alarm group entries in the Extension Alarm Group list
displayed in the main pane of the RMON Extension Alarm Group page.
3. Click Add.
4. Select the metric you want to alarm for from the Item list.
5. Select the port or interface you want to collect RMON statistics for from the Port list.
6. Select the sampling type you want to use from the Alarm Sampling Type list.
There are three sampling types: absolute, delta, and speed sampling. Absolute sampling
measures the current sampling value accumulated since the system started up.
Delta sampling, also referred to as comparative or relative sampling, measures the value by
subtracting the last absolute sampling value from the current absolute sampling value. Speed
sampling refers to the delta sampling value per unit of time, that is, the delta sampling value
divided by the sampling interval.
7. Enter the sampling interval in the Interval (second) field.
The valid range is 10-65535.