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USER'S GUIDE
2.
You may enable (with a check) or disable (no check, as shown above) Bandwidth Reservation for
the template. The bandwidth reservation feature allows a portion of possible system
connections to always be available to specific users for both inbound and outbound calls. For a
more detailed description of the Bandwidth Reservation feature, refer to
Information
3.
Complete the ISDN Throughput Monitor configuration.
When enabled, this feature samples the amount of data transmitted and received on the
connections between two systems. Each sample compares data associated with overload,
underload, and idle conditions. A history of these comparisons is kept in a sliding window. The
window size, number of samples needed to trigger an event, and sampling frequency are
configurable.
The default throughput monitor configuration delivered with the system will work for initial
system installation. Later, these parameters can be changed to better match the bandwidth
needs of the site location.
a.
Set the Sample Rate (seconds). This is the number of seconds for each sample period. During
this time period, the system keeps track of total number of bytes transmitted to and
received from another system. The utilization percentage is determined by comparing this
total with the realistic maximum for the current aggregate amount of bandwidth.
b. Set the Overload Trigger Number. This is the number of samples within the window that
must exceed the specified utilization for the overload condition to occur.
c.
Set the Overload Window Size. This is the number of sample periods (up to 32) that will be
used for the sliding overload window.
d. Set the Overload Percentage Utilization. This is the percentage of available bandwidth that
the traffic samples must exceed for an overload condition to occur.
e.
Set the Underload Trigger Number. This is the number of samples within the window that
must be below the next lowest target capacity for the underload condition to occur.
f.
Set the Underload Window Size. This is the number of sample periods (up to 32) that will be
used for the sliding underload window.
g. Set the Idle Trigger Number. This is the number of samples within the window that must be
below the specified utilization for the idle condition to occur.
h. Set the Idle Window Size. This is the number of sample periods (up to 32) that will be used
for the sliding idle window.
i.
Set the Idle Percent Utilization. This is the percentage of available bandwidth on the last
connection that traffic samples must fall below for the connection to be considered idle.
58
SFVRA Configuration Manager
(in the Configuring Sites chapter).
Circuit Groups
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