Enterasys Networks CSX6000, CSX5500, CSX7000 manual Throughput Monitor Configuration Elements

CONFIGURING CALL CONTROL

Throughput Monitor

THROUGHPUT MONITOR CONFIGURATION ELEMENTS

SAMPLE RATE

A Sample Rate identifies the number of seconds for each sample period. The default setting for the sample rate is 5 seconds. During this period, the system keeps track of the total number of bytes that is transferred in both directions between two systems. The utilization percentage is determined by comparing this total with the realistic maximum for the current aggregate amount of bandwidth.

OVERLOAD TRIGGER NUMBER

The number of samples within the window that must exceed the specified utilization for the OVERLOAD condition to occur.

OVERLOAD WINDOW SIZE

The number of sample periods (up to 32) that you should use as the sliding window.

OVERLOAD PERCENT UTILIZATION

The percentage of the available bandwidth that the traffic samples must exceed for an overload condition to occur.

UNDERLOAD TRIGGER NUMBER

The number of samples within the window that must be below the next lowest target capacity for the UNDERLOAD condition to occur.

UNDERLOAD WINDOW SIZE

The number of sample periods (up to 32) that you should use as the sliding window.

IDLE TRIGGER NUMBER

The number of samples within the window that must be below the specified utilization for the IDLE condition to occur.

IDLE WINDOW SIZE

The number of sample periods (up to 32) that you should use as the sliding window.

IDLE PERCENT UTILIZATION

The percentage of available bandwidth on the last connection that traffic samples must fall below for the connection to be considered IDLE.

Note: The system monitors for the IDLE condition when only one connection to a site exists, and that connection is a switched connection.

THROUGHPUT MONITOR BACKGROUND INFORMATION

A powerful feature of the CyberSWITCH is its ability to add and drop calls depending on the amount of WAN traffic. If no information is being sent, the call will be terminated. The system will also make additional calls to a site if it is determined that extra bandwidth is needed.

The Bandwidth Management feature works by sampling the amount of data that is transmitted and received on the connections between two units. Each sample is compared to the levels associated with the different conditions. The results of these comparisons are kept in a sliding window. The window size, number of samples that trigger an event, and sampling frequency are configurable.

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