Technical data
RackSwitch G8124 Command Reference
Chapter 4: Configuration Commands
185BMD00076, January 2009
RMON History Configuration
The RMON History Group allows you to sample and archive Ethernet statistics for a specific
interface during a specific time interval. History sampling is done per port.
NOTE – 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
reset/re-booted, the buckets are emptied.
Requested buckets are the number of buckets, or data slots, requested by the user for each His-
tory Group. Granted buckets 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.
Table 4-69 RMON History Configuration Commands
Command Syntax and Usage
rmon collection-history <1-127 characters>
Configures the interface History collection entry index number. Optional: Add multiple index
entries and separate each entry with a comma ( , ).
Command mode: Interface port
rmon collection-history <1-127 characters>> buckets <1-65535>
Configures the number of buckets for History collection that is associated with the collection-his-
tory index number. Configures the requested number of buckets, which is the number of discrete
time intervals over which data is to be saved. The default value is 30.
Command mode: Interface port
rmon collection-history <1-127 characters> interval <1-3600>
Configures the time interval over which the data is sampled for each bucket. The range is from 1 to
3600 seconds. The default value is 1800 seconds.
Command mode: Interface port
rmon collection-history <1-127 characters> owner <1-127 characters>
Enter a text string that identifies the person or entity that uses this History index.
Command mode: Interface port