D-Link DES-6500 - Switch User Manual page 81

Parameter Description
Unit Select the Unit of the line card in the chassis where the Shutdown port resides.
From... To Select the ports to be manually recovered from the Shutdown state.
Storm Trap Enable sending of Storm Trap messages when the type of action taken by the Traffic Control
function in handling a Traffic Storm is one of the following:
None – Will send no Storm trap warning messages regardless of action taken by the Traffic Control
mechanism.
Storm Occurred – Will send Storm Trap warning messages upon the occurrence of a Traffic Storm
only.
Storm Cleared – Will send Storm Trap messages when a Traffic Storm has been cleared by the
Switch only.
Both – Will send Storm Trap messages when a Traffic Storm has been both detected and cleared
by the Switch.
This function cannot be implemented in the Hardware mode. (When Drop is chosen in the Action
field.
Unit Select the Unit of the line card in the chassis to configure for Storm Control.
From...To Select the ports of this Switch to configure for Storm Control.
Broadcast Enables or disable Broadcast Storm Control.
Multicast Enables or disables Multicast Storm Control.
DLF Enables or disables Destination Lookup Failure (DLF) storm control. (Not available for Software
based Traffic Control {Shutdown}).
Action Select the method of traffic Control from the pull down menu. The choices are:
Drop – Utilizes the hardware Traffic Control mechanism, which means the Switch's hardware will
determine the Packet Storm based on the Threshold value stated and drop packets until the issue
is resovled.
Shutdown – Utilizes the Switch's software Traffic Control mechanism to determine the Packet
Storm occurring. Once detected, the port will deny all incoming traffic to the port except STP BPDU
packets, which are essential in keeping the Spanning Tree operational on the Switch. If the
Countdown timer has expired and yet the Packet Storm continues, the port will be placed in
Shutdown Forever mode and is no longer operational until the user manually resets the port using
the Storm Control Recover setting at the top of this window. Choosing this option obligates the user
to configure the Interval setting as well, which will provide packet count samplings from the
Switch's chip to determine if a Packet Storm is occurring.
Specifies the maximum number of packets per second that will trigger the Traffic Control function to
Threshold
commence. This entry should be made in multiples of 128. Other entries will be set internally
closest to the multiple of 128. The configurable threshold range is from 0-2047 with a default
setting of 1024.
Count Down The Count Down timer is set to determine the amount of time, in minutes, that the Switch will wait
before shutting down the port that is experiencing a traffic storm. This parameter is only useful for
ports configured as Shutdown in their Action field and therefore will not operate for Hardware
based Traffic Control implementations. The possible time settings for this field are 0, 5-30 minutes.
0 is the default setting for this field and 0 will denote that the port will never shutdown.
xStack DES-6500 Modular Layer 3 Chassis Ethernet Switch User Manual
Storm Control Recover
Storm Trap Configuration
Storm Control Settings
66