Configuring Security
Defining Storm Control
STEP 1
STEP 2
STEP 3
STEP 4
Cisco 500 Series Stackable Managed Switch Administration Guide
To define Storm Control:
Click Security > Storm Control. The Storm Control page is displayed.
All the fields on this page are described in the Edit Storm Control page except for
the Storm Control Rate Threshold (%). It displays the percent of the total
available bandwidth for unknown Unicast, Multicast, and Broadcast packets
before storm control is applied at the port. The default value is 10% of the
maximum rate of the port and is set in the Edit Storm Control page.
Select a port and click Edit. The Edit Storm Control page is displayed.
Enter the parameters.
•
Interface—Select the port for which storm control is enabled.
•
Storm Control—Select to enable Storm Control.
•
Storm Control Rate Threshold—Enter the maximum rate at which unknown
packets can be forwarded. The default for this threshold is 10,000 for FE
devices and 100,000 for GE devices.
•
Storm Control Mode—Select one of the modes:
-
Unknown Unicast, Multicast & Broadcast—Counts unknown Unicast,
Broadcast, and Multicast traffic towards the bandwidth threshold.
-
Multicast & Broadcast—Counts Broadcast and Multicast traffic towards
the bandwidth threshold.
-
Broadcast Only—Counts only Broadcast traffic towards the bandwidth
threshold.
Click Apply. Storm control is modified, and the Running Configuration file is
updated.
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