Version 6.6 401 October 2014
Installation & Operation Manual 34. Performance Measurements
34 Performance Measurements
Performance Measurements (PMs) may be used to analyze functionality and
determine abnormal behavior of the Mediant 8000 Media Gateway or other network
components. Choose PMs that are applicable to your specific network environment
and compare collected data with PMs gathered on other equipment (e.g., Softswitch
or other Media Gateways).
The following chapters provide basic information on performance measurements
operation. For additional information, see the ‘Performance Measurements’ section in
Element Management System User’s Manual, Document #: LTRT-910xx.
Mediant 8000 Media Gateway supports two types of Performance Measurements:
Real-Time PMs
Historic PMs
34.1 PM Profiles
PM Profiles can be generated to enable performance monitoring to be performed
according to specific sets of performance monitoring criteria. For example, you can
generate a profile to collect various Voice Call statistics. Once the profile is generated,
it can be applied to the Media Gateway and then polling can be activated on this
entity.
34.2 Real-Time PMs
Real-time PMs are polled at a high rate (typically every 5 seconds) and are used to
display current values of most critical system parameters (e.g. CPU utilization or Trunk
Usage). The value of Real-Time PM are calculated at the time of the polling and may
be different at the consequent poll (due to the highly volatile nature of most
parameters). Use real-time PMs to acquire a current “snapshot” of the Media
Gateway’s state.
34.3 Historic PMs
Historic PMs are polled at a much lower rate (typically every 15 minutes) and are used
to display the average, minimum and maximum value of certain system parameters
over the polling interval (15 minutes). Use historic PMs to monitor system state over
an extended period of time and perform long-term system analysis.
34.4 PM Threshold Alarms
The Mediant 8000 is capable of generating PM Threshold Alarms when values of
specific History PMs exceed user-defined thresholds. The alarms are reported to the
EMS and other SNMP managers and may be customized to match specific customer
needs. The alarm is cleared when the PMs value drops below the user-defined Low
Threshold value.
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