GS700TP Smart Switch Software Administration Manual
Managing Security 6-15
v1.0, December 2007
•Broadcast Mode – Select the Broadcast mode on the interface. The possible field values
are:
– Multicast & Broadcast & Unknown Unicast – Count Broadcast, Multicast and Unicast
traffic together.
– Multicast & Broadcast – Count Broadcast and Multicast traffic together.
– Broadcast Only – Count Broadcast traffic only.
•Broadcast Rate Threshold – Enter the maximum rate (kilobits per second) at which
broadcast packets are forwarded. The range is 70-285000 kbps. The default value is 200
kbps.
2. Select the interface.
3. Select Enable or Disable Broadcast Control in the provided field in the first row.
4. If you selected Enable Broadcast Control, select the Broadcast Mode from the list in the
provided field in the first row.
5. If you selected Enable Broadcast Control, enter the Broadcast Rate Threshold in the
provided field in the first row.
6. Click Apply to update the device.
Port Security
Network security can be increased by limiting access on a specific port only to users with specific
MAC addresses. The MAC addresses can be dynamically learned or statically configured. Locked
port security monitors both received and learned packets that are received on specific ports.
Access to the locked port is limited to users with specific MAC addresses. These addresses are
either manually defined on the port, or learned on that port up to the point when it is locked. When
a packet is received on a locked port and the packet source MAC address is not tied to that port
(either it was learned on a different port, or it is unknown to the system), the protection mechanism
is invoked. It provides the following options for unauthorized packets arriving at a locked port:
•Forwarded
• Discarded with no trap
• Discarded with a trap
• Shuts down the port
Locked port security also enables storing a list of MAC addresses in the configuration file. The
MAC address list can be restored after the device has been reset.