D-Link DGS-3700-12, Руководство пользователя

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DGS-3700-12/DGS-3700-12G Series Layer 2 Gigabit Ethernet User Manual
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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 automatic recovery
time has expired or the user manually resets the port using the
Port Configuration window in
the Administration folder and selecting the disabled port and returning it to an Enabled
status. 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.
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. Only the switch
continues to experience a traffic storm during this countdown period and the switch will
shutdown the port. 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 - 30 minutes. 0 is disable
forever state, port will not enter shutdown forever mode.
Time Interval
(5-600) 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.
Threshold
(0-255000)
Specifies the maximum number of packets per second that will trigger the Traffic Control
function to commence. The configurable threshold range is from
0 to 255000 with a default
setting of 131072 .
Traffic Control Type Select the type of Storm Type to detect, either Broadcast Multicast or Unicast. Once selected,
use the pull-down menu to enable or disable this storm detection.
Traffic Trap Settings
Traffic Trap
Settings 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 not send any 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.
Traffic Log Settings
Traffic Log Settings
Enable or disable Traffic Log Settings.
Traffic Auto Recover Time (0-65535)
Traffic Auto
Recover Time (0-
65535) Enter a Traffic Auto Recover Time between 0 and 65535 minutes.
Click Apply to implement the settings made.