Configuring Bandwidth Profiles - AudioCodes Mediant 4000 SBC User Manual

Parameter
Major Hysteresis (Red)
major-hysteresis-red
[QOEColorRules_MajorHysteresis]
16.3

Configuring Bandwidth Profiles

The Bandwidth Profile table lets you configure up to 1,009 Bandwidth Profiles. A Bandwidth
Profile defines bandwidth utilization thresholds for audio and/or video traffic (incoming and
outgoing), which if crossed can result in various actions (discussed later in the section).
Bandwidth Profiles enhance the device's monitoring of bandwidth utilization.
Once configured, you can apply Bandwidth Profiles to specific calls, by assigning them to
any of the following configuration entities:

IP Groups (see ''Configuring IP Groups'' on page 326)

Media Realms (see ''Configuring Media Realms'' on page 301)

Remote Media Subnets (see ''Configuring Remote Media Subnets'' on page 304)
Each time a configured bandwidth threshold is crossed, the device can do the following,
depending on configuration:

Reject calls destined to the IP Group or use an alternative IP Profile for the IP Group.
For more information, see ''Configuring Quality of Service Rules'' on page 298.

Use an alternative routing rule for alternative routing. If a call is rejected due to a
crossed threshold, the device generates a SIP 806 response. You can configure the
SIP response code as a reason for alternative routing (see ''Configuring SIP
Response Codes for Alternative Routing Reasons'' on page 476).

Send an SNMP alarm (acMediaRealmBWThresholdAlarm). The device clears the
alarm when bandwidth utilization returns to normal (Green).
The SEM displays bandwidth utilization using color-coded states:

Green: Indicates bandwidth utilization is within normal range.

Yellow: Indicates bandwidth utilization is encroaching on "total" bandwidth, serving as
a warning (or it could also mean that bandwidth utilization has dropped below the red
state).

Red: Indicates that bandwidth utilization has exceeded total bandwidth.
Bandwidth Profiles let you configure bandwidth thresholds, which when crossed changes
the color-coded state for bandwidth utilization:

Green-Yellow (Minor) Threshold: Lower threshold configured as a percentage of the
configured major (total) bandwidth threshold. When bandwidth goes over the
threshold, the device considers it a Yellow state (Minor alarm severity); when it goes
below the threshold, it considers it a Green state (cleared alarm).

Yellow-Red (Major) Threshold: Upper threshold configured by the major (total)
User's Manual

Echo measures the Residual Echo Return Loss (RERL) in
dB.
Defines the amount of fluctuation (hysteresis) from the Major
threshold, configured by the 'Major Threshold (Red)' parameter
in order for the threshold to be considered as crossed. The
hysteresis is used only to determine threshold crossings from
Red to Yellow. In other words, the device considers a threshold
crossing to Yellow only if the measured voice metric crosses the
Major threshold and the hysteresis.
For example, if you configure the 'Major Threshold (Red)'
parameter to 2 and the 'Major Hysteresis (Red)' parameter to
0.1 (for MOS), the device considers a threshold crossing to
Yellow only if the MOS crosses 2.1 (i.e., 2 + 0.1).
294
Mediant 4000 SBC
Description
Document #: LTRT-41729