Configure Slot1 Module - D-Link DES-3225G Series User Manual

24-port NWay Ethernet Switch User's Guide
tag field in the packet header contains a value of 0-3, the packet will be placed in the low priority queue;
a value of 4-7 causes the packet to be placed in the high priority queue.
♦ Port Lock When locked, automatic learning for all stations connected to this port will stop and entries
in the Forwarding Table for all devices residing on this port will age out. The only traffic this port will
allow is traffic from machines whose MAC address is manually entered in the Static Forwarding Table.
♦ Broadcast Storm Rising Action
Threshold (below) is met. When triggered, the port can be configured to Do Nothing, Blocking or
Blocking-Trap. The Do Nothing setting causes the switch to operate normally, in other words, ignore
the broadcast storm condition. The Blocking setting causes the port to drop all broadcast frames, thus
isolating the broadcast storm. Blocking-Trap performs the same action as Blocking, except it also sends
a trap to the designated Trap Recipient informing them of the situation. For more information on
broadcast storms, please refer to the Switch Management Concepts section of this manual.
♦ Broadcast Storm Rising Threshold This setting defines a ceiling for the number of broadcast
packets per second on this port. Once met, the Broadcast Storm Rising Action (above) will be triggered.
The assigned number should be high enough to allow normal broadcast packets (which comprise
significant traffic) to be let through, while being low enough so that broadcast storms can be detected
early.
♦ Broadcast Storm Falling Action This setting will be activated when the Broadcast Storm Rising
Threshold and then the Broadcast Storm Falling Threshold (below) is met. This setting can be
configured to Do Nothing, Forwarding or Forwarding-Trap. The Do Nothing setting causes the switch
to operate normally, in other words, ignore the situation. If the port had met the Broadcast Storm
Rising Action criteria and started Blocking broadcast packets, it will continue doing so. The Forwarding
setting causes the port to begin forwarding broadcast frames, thus removing the Blocking state imposed
by the Broadcast Storm Rising Action. Forwarding-Trap performs the same action as Forwarding,
except it also sends a trap to the designated Trap Recipient informing them of the situation.
♦ Broadcast Storm Falling Threshold This setting defines the number of broadcast packets per second
on this port which will trigger the Broadcast Storm Falling Action (above). This threshold will only
trigger an action if the Broadcast Storm Rising Threshold has first been reached. The assigned number
should be high enough to allow normal broadcast packets (which comprise significant traffic) to be let
through as early as possible, while being low enough so that broadcast storms are completely
eliminated.
Press APPLY to let the changes take effect. If you wish these changes to be the default for the switch,
return to the main menu and choose Save Changes.
STP Port State (whether the Spanning Tree Protocol is enabled or disabled on this port) and Status reflect
the current conditions of the port. They are read-only fields and cannot be changed.

Configure Slot1 Module

This screen allows you to change the port state of the module in slot 1 in the case when you would like to
partition a port due to excessive collision, or for observation, device repair, or security reasons. Great caution,
however, must be observed when disabling a port, since all data passing through the port will be discarded by
the Switch.
To change the configuration of the Slot1 module shown below:
Using the Console Interface
This setting will be activated when Broadcast Storm Rising
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