Name Description
QoS Fault Trap QoS fault trap status. Possible values:
• Enabled. The RTP statistics application is configured to generate
QoS fault and clear traps.
• Disabled. The RTP statistics application is not configured to
generate QoS fault and clear traps.
Fault The QoS fault trap boundary. That is, the minimum number of active
sessions with QoS faults that triggers a QoS fault trap.
Clear The QoS clear trap boundary. That is, the reduced number of active
sessions with QoS faults that triggers a QoS clear trap to be sent after
a QoS fault trap was sent.
QoS Trap Rate Limiter:
Token Interval The displayed token interval is in seconds. The maximum long term
trap rate, expressed as an interval in seconds. In the example shown,
the maximum long term trap rate is one trap every 10 seconds.
Bucket Size The maximum number of tokens stored in the token bucket of the trap
rate limiter. This item limits the size of a QoS trap burst.
Session Table:
Size The maximum number of RTP session entries held in the session
table in the Branch Gateway RAM
Reserved The number of rows in the session table that are reserved for sessions
with QoS problems. In the example shown, the table size is 128 and
the reserved number is 64. If, from 1000 sessions only 300 had QoS
problems, the session table will hold at least the last 64 sessions that
had QoS problems. Note that if the last 128 sessions all had QoS
problems, all rows in the session table will be filled with sessions that
had QoS problems.
Min Stat Win The minimum statistic window configured for the RTP statistics
application. That is, the minimum number of observed RTP sequence
increments for which the application evaluates packet loss.
QoS traps
About this task
You can configure the application to automatically generate QoS traps via SNMP at the
termination of RTP sessions that have QoS problems. SNMP traps are automatically sent to
the SNMP trap manager on the active Media Gateway Controller (MGC). You can also
configure SNMP traps to be sent to an external trap manager. The application generates a
QoS trap when, at the end of an RTP session, one or more event counters are over their event
thresholds. For example, if the event threshold for packet loss is 2, the application generates
a trap at the termination of any session in which packet-loss was sampled over its threshold
twice or more during the session.
Monitoring applications
Administering Avaya G430 Branch Gateway October 2013 355
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