D-Link DGS-3627G Product Manual - Page 360
Traffic Control Global Settings
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xStack® DGS-3600 Series Layer 3 Managed Gigabit Ethernet Switch Traffic Control Global Settings Traffic Control Trap Traffic Control Auto Recover Time (0-65535) 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. Enter the time allowed for auto recovery from shutdown for a port. The default value is 0, which means no auto recovery is possible and the port remains in shutdown forever mode. This requires manual entry of the CLI command "config ports [ | all ] state enable" to return the port to a forwarding state. Traffic Control Settings Unit Select the unit you wish to configure. 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. Unicast Enables or disables Unicast Storm control. 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 resolved. 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. Threshold (0255000) Specifies the maximum number of packets per second that will trigger the Traffic Control function to commence. The Threshold can be set from 0 to 255000 with a default setting of 131072. Count Down (0 or 3-30) 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, 3 to 30 minutes. 0 is the default setting for this field and 0 will denote that the port will never shutdown. Time Interval (5600) The Interval will set the time between Multicast and Broadcast packet counts sent from the Switch's chip to the Traffic Control function. These packet counts are the determining factor in deciding when incoming packets exceed the Threshold value. The Interval may be set between 5 and 600 seconds with the default setting of 5 seconds. Click Apply to implement the settings made. 344