Displaying the RMON History Table

The RMON - History Configuration window displays information about the interfaces that are being monitored for historical data.

Use this window to display the actual history data collected from an interface or to delete a row in the table.  From this window you can access other windows that allow you to add a new row to the history control table or modify an existing row. 

For general information about the RMON history feature, see About RMON History and Statistics.

Displaying the History Data for an Interface

Procedure:

Step Action
1 In the RMON - History Configuration window, locate the interface for which you want information.
2 Click the Show History Table button next to the interface.
The RMON - Ether History Table for the interface is displayed.

Note: By default, every interface on the device has two entries defined in the history control table.  One entry specifies a control interval of 30 seconds, and the other specfies a control interval of 30 minutes.  The 30 seconds period allows for the detection of sudden changes and the 30 minute period allows for steady state behavior of the interface.

Deleting a Row in the History Table

In the RMON - History Configuration window, locate the row you want to delete and click Del.

The row is deleted immediately.

Field Descriptions

Index Integer that uniquely identifies a row in the history table.
ifIndex Integer that identifes the interface that is the source of the data for samples defined by this row in the history table.
Buckets Requested Requested number of data rows to be saved in the corresponding history data table.  The default is 1.  The maximum is 400.   
Buckets Granted Number of rows to be saved in the history data table of the specified interface before entries are reused. The total number of rows available for all history tables is 400.  The amount granted to you depends on the number that was already granted.  For example, if 300 rows have been granted, and you request 200, you will be granted only 100 rows.
Interval Interval in seconds before a sample is actually taken for each bucket. This value can be between 1 and 3600 seconds (or one hour). The default is 1800 (one half hour).
Owner Owner of this row in the history table.
Status status of a row in the history table.  The row can be in one of the following states: "under creation", "create request", "valid", or "invalid."