Avaya Media Gateway G250, Administration Manual

Page: 414 / 840

Configuring monitoring applications
414 Administration for the Avaya G250 and Avaya G350 Media Gateways
Configuring QoS traps
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.
!
CAUTION:
CAUTION:
If the thresholds for trap generation are set too low, a significant amount of trap
traffic will be generated and negatively impact network performance.
Enabling QoS traps
1. View the RTP statistic thresholds and modify their configurations as necessary. See
Viewing RTP statistics thresholds on page 408 and Configuring RTP statistics
thresholds on page 410.
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.
Table 108: RTP statistics application configuration (continued)
Name Description
2 of 2