Avaya Configuring SNMP, RMON, BOOTP, DHCP, and RARP Services Manuel d'utilisateur Page 63

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Using RMON Services
114070 Rev. A 2-5
Matrix
Filter
Packet Capture
RMON groups contain control and data tables. Control tables contain control
parameters that specify which statistics you want to access. You can view and
change many entries in a control table. Data tables contain statistics the agent
obtains, and usually you can only view entries in these tables.
Some of the groups work together to provide a particular RMON function. For
example, the History Control group and Ethernet History group together provide
the history capability in the RMON agent for the Ethernet DCM.
The following sections indicate the function of each group and the tables that each
group defines. Refer to RFC 1757 for the following information:
A list of all the parameters that appear in a control table
The read/write status of a control parameter
The default values for control parameters with read/write status
A list of all the objects that appear in a data table
Ethernet Statistics Group
The Ethernet Statistics group records data that the Ethernet DCM measures on
network interfaces. The Ethernet DCM creates one entry for each Ethernet
interface it monitors on a device and places the entry in the EtherStatsTable. The
EtherStatsTable also contains control parameters for this group.
History Control Group
The History Control group manages the periodic statistical sampling of data from
networks. This group specifies control parameters, such as the frequency of data
sampling, in the historyControlTable.
Ethernet History Group
The Ethernet History group records periodic statistical samples from Ethernet
networks, for example, interface addresses and polling periods. This group places
the statistical samples in the etherHistoryTable.
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