User`s manual

MediaPack SIP
MediaPack SIP User’s Manual 230 Document #: LTRT-65405
• The enterprise acBoardEvBoardStarted which is generated at the end of system
initialization. This is more of an ‘application-level’ cold start sent after the entire initializing
process is complete and all the modules are ready.
15.4 Third-Party Performance Monitoring
Measurements
Performance measurements are available for a third-party performance monitoring system
through an SNMP interface. These measurements can be polled at scheduled intervals by an
external poller or utility in a media server or other off-device system.
The device provides two types of performance measurements:
1. Gauges: Gauges represent the current state of activities on the device. Gauges, unlike
counters, can decrease in value, and like counters, can increase. The value of a gauge is the
current value or a snapshot of the current activity on the device.
2. Counters: Counters always increase in value and are cumulative. Counters, unlike gauges,
never decrease in value unless the off-device system is reset, the counters are then zeroed.
Performance measurements are provided by several proprietary MIBs that are located under the
‘performance’ sub tree:
iso(1).org(3).dod(6).internet(1).private(4).enterprises(1).audioCodes(5003).acPerformance(10).
Two formats of performance monitoring MIBs are available:
1. Old format (obsolete as of version 4.6):
Each MIB is composed of a list of single MIB objects, each relates to a separate attribute
within a gauge or a counter. All counters and gauges provide the current time value only.
¾ acPerfMediaGateway - a generic-type of PM MIB that covers:
 Control protocol
 RTP stream
 System packets statistics
¾ acPerfMediaServices - Media services devices specific performance MIB.
¾ acPerfH323SIPGateway – holds statistics on Tel to IP and vice versa.
2. New format:
The following MIBs feature an identical structure. Each includes two major sub-trees.
¾ Configuration sub tree – enables configuration of general attributes of the MIB and
specific attributes of the monitored objects.
¾ Data sub tree
The monitoring results are presented in tables. Each table includes one or two indices. When
there are two indices, the first index is a sub-set in the table (e.g., trunk number) and the
second (or a single where there is only one) index represents the interval number (present -
0, previous - 1 and the one before - 2).
The MIBs are:
¾ acPMMedia – for media (voice) related monitoring (e.g., RTP, DSP’s).
¾ acPMControl – for Control-Protocol related monitoring (e.g., connections, commands).
¾ acPMSystem – for general (system related) monitoring.
The log trap, acPerformanceMonitoringThresholdCrossing (non-alarm), is sent out every
time the threshold of a Performance Monitored object is crossed. The severity field is
'indeterminate' when the crossing is above the threshold and 'cleared' when it falls bellow the
threshold. The 'source' varbind in the trap indicates the object for which the threshold is
being crossed.