Avaya G430 Manual page 357

QoS fault and clear traps
About this task
You can configure the RTP statistics application to send QoS fault and clear traps. A QoS fault
trap is sent when a specified number of active RTP sessions have QoS indicators over the
configured thresholds. A QoS clear trap is sent after a QoS fault trap when the number of active
RTP sessions with QoS indicators over the configured thresholds reduces to a specified
number. Since some RTP sessions can be very long, and QoS traps are sent only after the
termination of the stream, QoS fault and clear traps are important for providing timely
information about QoS problems.
Note:
QoS fault traps appear in the Network Management Console Event Log Browser, indicating
to the user that there are QoS problems in a specific network device. See the Avaya Network
Management Console User Guide .
Configuring QoS fault and clear traps
Procedure
Use the rtp-stat fault command.
For example:
Gxxx-001(super)# rtp-stat fault 1 0
The fault trap boundary was set to 1 (default: 3)
The clear trap boundary was set to 0
With this example configuration, a QoS fault trap is sent if and when one active RTP
session has QoS problems. A QoS clear trap is then sent if and when the number of
active RTP sessions with QoS problems reaches 0.
The trap rate limiter
The application features a trap rate limiter. The trap rate limiter limits the rate at which QoS
traps are sent. The rate limiter protects against overloading the trap manager with bursts of
traps when a single event causes multiple RTP sessions to terminate simultaneously.
The trap rate limiter uses a token bucket scheme, in which traps are sent only if there are
tokens in a virtual bucket. Tokens are added to the bucket every 'token interval,' which sets
the maximum long term trap rate. Each time a trap is sent, the number of tokens in the bucket
decrements. The 'bucket size' is the maximum number of tokens that the bucket can hold. The
bucket size limits the trap burst size.
Administering Avaya G430 Branch Gateway
QoS traps are now enabled.
Monitoring applications
October 2013 357