Digital Signal Processing (DSP) Management MIB module.
The MIB module monitors the DSP resource and status.
Acronyms & Terms
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DTMF - Dual Tone Multi-Frequency.
DTMF uses two frequencies, the high frequency
omponent and the low frequency component,
to generate digit signals.
DSPFarm - DSPFarm ia a logical name given to a functionality
which groups the DSP resources to provide certain
service like transcoding and conferencing using DSP.
DSPFarm profile - A DSPFarm profile logically groups the DSP
to perform service like transcoding and conferencing.
It is uniquely identified by a profile number.
MTP - Media Termination Point. RTP packet received by
MTP in the incoming call leg will be regenerated
and send out through the outgoing call leg.
transcode - Translating codec. transcoder is used to do
codec translation. If incoming call leg negotiates
codec-A and outgoing call leg negotiates codec-B
then transcoder will convert received RTP packet
from codec-A to codec-B or codec-B to codec-A.
MTP hardware session - Media termination functionality
with using DSP.
MTP software session - Media termination functionality
without using DSP.
RTP - Real-time Transport protocol.
Video Pool - A group of DSP resources dedicated to providing
video services.
A cdspMIBCardStateNotification is sent when the cdspCardState
enters into normal(1) state and enters into or exits from
fatal(4) state.
cdspOperStateNotification
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A cdspOperStateNotification is sent when the cdspOperState
enters into normal(1) state or shutdown(2) state.
The value of entPhysicalName contains the name of the
DSP.
cdspVideoUsageNotification
.1.3.6.1.4.1.9.9.86.2.0.3
This notification is sent when cdspCardVideoPoolUtilization
reaches the specified threshold
(cdspCardVideoPoolUtilizationThreshold).
cdspCardVideoPoolUtilization indicates the DSP video pool usage
at the time this notification is sent.
cdspCardVideoPoolUtilizationThreshold indicates the threshold
configured to trigger this notification.
DSP video pool resource usage (cdspCardVideoPoolUtilization) is
updated and compared against the threshold
(cdspCardVideoPoolUtilizationThreshold) in the events below:
1. A call that requires DSP video resource connects.
2. A call that requires DSP video resource disconnects.
3. DSPFarm profile for video resource is enabled.
4. DSPFarm profile for video resource is disabled.
During comparison, if usage is larger than threshold, this
notification is generated.
cdspVideoOutOfResourceNotification
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A cdspVideoOutOfResourceNotification is sent when there is not
enough DSP resource in the video pool of the system for video
services.
cdspCardVideoPoolUtilization indicates the DSP video pool usage
at the time this notification is sent.
cdspCardVideoPoolUtilizationThreshold indicates the threshold
configured to trigger this notification.
DSP video resources required is computed for each incoming call
that requires DSP video resources. If there is not enough
video resource, this call will not have any video capabilities
and is treated as audio-only; and this notification is
generated.