Understanding Rmon History; Enabling Rmon History (Default); Figure 4 Graphport Dialog Box-Interface Tab - Nortel Passport 8600 Configuring

Figure 4 GraphPort dialog box—Interface tab

Understanding RMON history

The RMON History group records periodic statistical samples from a network.
A sample is called a history and is gathered in time intervals referred to as
"buckets." By enabling and creating histories, you establish a time-dependent
method for gathering RMON statistics on a port. Following are the default values
for history:
• Buckets are gathered at 30-minute intervals.
• Number of buckets gathered is 50.
Both the time interval and the number of buckets is configurable. However, when
the last bucket is reached, bucket 1 is dumped and "recycled" to hold a new
bucket of statistics. Then bucket 2 is dumped, and so forth.

Enabling RMON history (default)

To enable RMON history on a port basis:
1
On the device view, select a port or multiple ports.
2
Right-click on the selected ports.
The Port shortcut menu opens
Chapter 2 Configuring RMON
(Figure 1 on page 32).
Configuring Network Management
37