
Configuring SNMP Services
1-5
Matrix Group
The Matrix group stores statistics for an interchange between interfaces at
different addresses. This group’s control parameters, such as the interface that
starts the interchange, appear in the matrixControlTable. When the Matrix group
receives information from a good packet, it places data in both the matrixSDTable
and the matrixDSTable.
Filter Group
The Filter group specifies what type of packets the DCM should capture. Filter
control parameters, such as the minimum length of the packets to capture, appear
in the filterTable. Associated with each filter is a
channel
(a specific path along
which data flows). Control parameters in the channelTable define how and where
the filtered packets flow.
Packet Capture Group
The Packet Capture group enables the capture of packets that satisfy the Filter
group control parameters. Control parameters in the bufferControlTable specify
how to transfer data from the channelTable to the captureBufferTable. For
example, you can specify the maximum number of octets from each packet that
the group should store in the captureBufferTable. To use the Packet Capture
group, you must set up the Filter group.
For More Information about SNMP
The following documents provide more detail about SNMP design and
implementation:
Rose, Marshall T.
The Simple Book.
Englewood Cliffs, New Jersey: Prentice Hall,
Inc., 1991.
Stallings, William.
SNMP, SNMP v2, and CMIP: The Practical Guide to Network-
Management Standards.
Reading, Massachusetts.: Addison-Wesley
Publishing Co., Inc., 1993.
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