USING RMON

Matrix Group

The Matrix group can maintain statistics on conversations that occur between each pair of hosts on the network. This group can display statistics for traffic transmitted from any source address, traffic received by any destination address, or traffic passing between any host pair. For example, if an alarm is

set off for a high watermark on traffic loading, you can use the Host Top N group to identify the hosts with the heaviest load, and then use the Matrix group to analyze the conversations taking place. If a host is transmitting a lot of packets, but not receiving many responses, this may indicate a faulty device. On the other hand, if a host is receiving a lot of traffic but is not responding, either the host is overloaded and cannot keep up with the requests, or the network is overloaded and should be segmented.

Use the control table shown below to configure entries for the Matrix group, including the device interface and owner. Click on the Add (Edit) button to add (edit) an index entry. The dialog box that opens is described in the following table.

 

Table 9-16 Matrix Control Table

 

 

Field

Description

 

 

Index

A number that identifies the row in the table.

 

 

Owner

The person who created this entry.

 

 

Interface

A media interface on the monitored device. (MIB-2: 1.3.6.1.2.1.2.2.1.2)

 

 

Table Size

The number of host entries added to this table by the RMON probe.

 

 

9-20

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SMC Networks 6.20 manual Matrix Group, Matrix Control Table