Configuring Bandwidth Profiles - AudioCodes Mediant 800B User Manual

16.3

Configuring Bandwidth Profiles

The Bandwidth Profile table lets you configure up to 486 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 365)

Media Realms (see 'Configuring Media Realms' on page 339)

Remote Media Subnets (see 'Configuring Remote Media Subnets' on page 342)
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 335.

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 728).

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) bandwidth
threshold. When bandwidth goes over the threshold, the device considers it a Red state
(Major alarm severity); when it goes below the threshold, it considers it a Yellow state (Minor
alarm severity).
The device also uses hysteresis to determine whether the threshold has indeed being crossed.
Hysteresis defines the amount of fluctuation from the threshold in order for the threshold to be
considered as crossed (i.e., change in color state). Hysteresis is used to avoid false reports being
sent by the device. Hysteresis is used only for threshold crossings toward a lesser severity (i.e.,
from Red to Yellow, Red to Green, or Yellow to Green). Hysteresis is configured as a percentage
of the configured major (total) bandwidth threshold.
User's Manual
Mediant 800B Gateway & E-SBC
332 Document #: LTRT-10632