SMC Networks 6152PL2 FICHE, Management Manual

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Command Line Interface
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4
Usage Guidelines
ATC includes storm control for broadcast or multicast traffic. The control response
for either of these traffic types is the same, as shown in the following diagrams.
Storm control by limiting the traffic rate:
The key elements of this diagram are described below:
• Alarm Fire Threshold – The highest acceptable traffic rate. When ingress traffic
exceeds the threshold, ATC sends a Storm Alarm Fire Trap and logs it.
• When traffic exceeds the alarm fire threshold and the apply timer expires, a traffic
control response is applied, and a Traffic Control Apply Trap is sent and logged.
• Alarm Clear Threshold – The lower threshold beneath which an control response
can be automatically terminated after the release timer expires. When ingress
traffic falls below this threshold, ATC sends a Storm Alarm Clear Trap and logs it.
• When traffic falls below the alarm clear threshold after the release timer expires,
traffic control will be stopped and a Traffic Control Release Trap sent and logged.
• Traffic control can be released automatically or manually.
Storm control by shutting down a port: