Configuring Bandwidth Profiles - AudioCodes Mediant 500 E-SBC User Manual

Parameter
Yellow Red Hysteresis
CLI: yellow-red-hysteresis
[QOEColorRules_YellowRedH
ysteresis]
16.3

Configuring Bandwidth Profiles

Bandwidth Profiles enhance the device's monitoring of bandwidth utilization. A Bandwidth
Profile defines bandwidth utilization thresholds for audio and/or video traffic (incoming and
outgoing). Bandwidth Profiles can be assigned to IP Groups (see ''Configuring IP Groups''
on page 260), Media Realms (see ''Configuring Media Realms'' on page 249), and Remote
Media Subnets (see ''Configuring Remote Media Subnets'' on page 251).
Each time a configured bandwidth threshold is crossed, the device can do the following,
depending on configuration:

Determine access control and media enhancements based on bandwidth utilization.
Depending on the crossed threshold type, you can configure the device to accept or
reject calls, or use an alternative IP Profile for the IP Group to which the call belongs.
For more information, see ''Configuring Media Enhancement Profiles'' on page 244.

Alternative routing based on bandwidth utilization. If a call is rejected because of a
crossed threshold, the device generates a SIP 806 response. You can configure this
SIP response code as a reason for alternative routing (see ''Configuring SIP
Response Codes for Alternative Routing Reasons'' on page 486).

Send an SNMP alarm (acMediaRealmBWThresholdAlarm). The device clears the
alarm when bandwidth utilization returns to normal (within the thresholds).
The thresholds of Bandwidth Profiles use the same color-coding as the Quality of
Experience Profile:

Green-Yellow threshold: Lower threshold that indicates that the bandwidth exceeded
a user-defined percentage of the configured threshold. This is referred to as a
"Warning" alarm (i.e., warning you that bandwidth is nearing the threshold). When
bandwidth goes over the threshold, the device considers it as a Yellow state; when it
goes below the threshold, it considers it as a Green state.

Yellow-Red threshold: Indicates that bandwidth has exceeded the configured
threshold. When bandwidth goes over the threshold, the device considers it as a Red
state; when it goes below the threshold, it considers it as a Yellow state.
Hysteresis is also used to configure the threshold. This defines the amount of fluctuation
from a threshold in order for the threshold to be considered as crossed (i.e., change in
color state). Hysteresis is used to avoid false reports.
The following procedure describes how to configure Bandwidth Profiles in the Web
interface. You can also configure Bandwidth Profiles using the table ini file parameter,
BWProfile or CLI command, configure voip/qoe bw-profile.
User's Manual
Defines the fluctuation (change) from the value configured for the
Yellow-Red threshold. When the threshold is exceeded by this
hysteresis value, the device sends a report to the SEM indicating
this change.
Note: If the monitored parameter crosses two thresholds at once
(e.g., from Green to Red), the device ignores the hysteresis value
and reports the call state change to the SEM.
242
Mediant 500 E-SBC
Description
Document #: LTRT-10427