Microsens MS453490M Management Guide - Manual (Page 741)

C HAPTER 31 | Automatic Traffic Control Commands
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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.
◆ The traffic control response of rate limiting can be released
automatically or manually. The control response of shutting down a
port can only be released manually.
Figure 292: Storm Control by Shutting Down a Port
The key elements of this diagram are the same as that described in the
preceding diagram, except that automatic release of the control response
is not provided. When traffic control is applied, you must manually re-
enable the port.
F UNCTIONAL L IMITATIONS
Automatic storm control is a software level control function. Traffic storms
can also be controlled at the hardware level using the switchport packet-
rate command. However, only one of these control types can be applied to
a port. Enabling automatic storm control on a port will disable hardware-
level storm control on that port.
auto-traffic-control
apply-timer
This command sets the time at which to apply the control response after
ingress traffic has exceeded the upper threshold. Use the no form to
restore the default setting.
S YNTAX
auto-traffic-control {broadcast | multicast} apply-timer seconds
no auto-traffic-control {broadcast | multicast} apply-timer
broadcast - Specifies automatic storm control for broadcast traffic.
multicast - Specifies automatic storm control for multicast traffic.
seconds - The interval after the upper threshold has been exceeded
at which to apply the control response. (Range: 1-300 seconds)