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Rmon Group 2-history; History Mib Objects - HP 438031-B21 - 1:10Gb Ethernet BL-c Switch Application Manual

Hp 1:10gb ethernet bl-c switch for c-class bladesystem application guide.
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RMON group 2—history
The RMON History group allows you to sample and archive Ethernet statistics for a specific interface
during a specific time interval.
RMON port statistics must be enabled for the port before an RMON history group can
monitor the port.
Data is stored in buckets, which store data gathered during discreet sampling intervals. At each
configured interval, the history instance takes a sample of the current Ethernet statistics, and places them
into a bucket. History data buckets reside in dynamic memory. When the switch is re-booted, the buckets
are emptied.
Requested buckets (/cfg/rmon/hist x/rbnum) are the number of buckets, or data slots, requested by
the user for each History Group. Granted buckets (/info/rmon/hist x/gbnum) are the number of
buckets granted by the system, based on the amount of system memory available. The system grants a
maximum of 50 buckets.
Use an SNMP browser to view History samples.

History MIB objects

The type of data that can be sampled must be of an ifIndex object type, as described in RFC1213 and
RFC1573. The most common data type for the history sample is as follows: -mgmt.interfaces.ifTable.ifIndex.interface
The last digit (x) represents the interface on which to monitor, which corresponds to the port number
(1-17, 19-25). History sampling is done per port, by utilizing the interface number to specify the port
Remote monitoring


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