H3C S5810 Series, Руководство по эксплуатации

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Private alarm group
The private alarm group calculates the values of alarm variables and compares the result with the
defined threshold, thereby realizing a more comprehensive alarming function.
System handles the prialarm alarm table entry (as defined by the user) in the following ways:
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Periodically samples the prialarm alarm variables defined in the prialarm formula.
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Calculates the sampled values based on the prialarm formula.
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Compares the result with the defined threshold and generates an appropriate event.
If the count result overpasses the same threshold multiple times, only the first one can cause an alarm
event. That is, the rising alarm and falling alarm are alternate.
History group
The history group defines that the system periodically collects statistics on traffic information at
interfaces and saves the statistics in the history record table (ethernetHistoryTable) for query
convenience of the management device. The statistics data includes bandwidth utilization, number of
error packets, and total number of packets.
The history group collects statistics on packets received on the interface during each period, which can
be configured through the command line.
Ethernet statistics group
The statistics group defines that the system collects statistics on various traffic information on the
interface (at present, only Ethernet interfaces are supported) and saves the statistics in the Ethernet
statistics table (ethernetStatsTable) for query convenience of the management device. It provides
statistics about network collisions, CRC alignment errors, undersize/oversize packets, broadcasts,
multicasts, bytes received and transmitted, packets received and transmitted, and so on.
After the creation of a statistics entry on an interface, the statistics group starts to collect traffic statistics
on the current interface. The result of the statistics is a cumulative sum.
Configuring the RMON Statistics Function
Configuration Prerequisites
RMON statistics function can be implemented by either the Ethernet statistics group or the history group,
but the objects of the statistics are different, you can choose one from them accordingly.
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The statistics object of the Ethernet statistics group is the variable defined in the Ethernet statistics
table, and the recorded content is a cumulative sum of the variable from the time the statistics entry
is created to the current time. For detailed configuration, refer to Configuring the RMON Ethernet
Statistics Function .
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The statistics object of the history group is the variable defined in the history record table, and the
recorded content is a cumulative sum of the variable in each period. For detailed configuration,
refer to Configuring the RMON History Statistics Function .