Configuring Qos Traps - Avaya G250 Administration

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.
Enabling QoS traps
1. View the RTP statistic thresholds and modify their configurations as necessary. See
Viewing RTP statistics thresholds
thresholds
2. If you need to modify the minimum statistic window, use the rtp-stat min-stat-win
command. For example:
G350-001(super)# rtp-stat min-stat-win 50
Done!
The minimum statistic window is the minimum number of observed RTP sequence
increments for which the application evaluates packet loss. The VoIP engine evaluates the
current received packet loss every RTCP interval. The VoIP engine postpones loss
estimation to the next interval if the number of received packets is less than the minimum
statistic window. By modifying the minimum statistic window, you can prevent the
application from generating loss-events based on too few packets and safely configure a
low packet loss threshold.
3. To configure an additional trap destination, such as an external trap manager, use the
command snmp-server host. For example:
G350-001(super)# snmp-server host 136.9.71.47 traps v1 public
Note:
When using the snmp-server host command, you can specify only to send
Note:
certain types of traps to the specified trap manager. For example, snmp-server
host 1.1.1.1 traps v1 public rtp-stat-qos rtp-stats-faults
configures only QoS traps and QoS fault and clear traps to be sent to host
1.1.1.1.
To check your current SNMP configurations, use the show snmp command. Traps are
automatically sent to the active MGC by the dynamic trap manager feature. To configure
the dynamic trap manager, use the command snmp-server dynamic-trap-manager.
For more information about the dynamic trap manager, see
manager
on page 337.
on page 298.
Configuring and analyzing RTP statistics
on page 335 and Configuring RTP statistics
Configuring dynamic trap
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