User manual

xStack DGS/DXS-3300 Series Layer 3 Stackable Gigabit Ethernet Switch User Manual
85
Port Security
Figure 6- 43. Port Security Settings and Table window
The following parameters can be set:
Parameter Description
Unit
Choose the Switch ID number of the Switch in the switch stack to be modified.
From/To
A consecutive group of ports may be configured starting with the selected port.
Admin State
This pull-down menu allows the user to enable or disable Port Security (locked MAC
address table for the selected ports).
Max. Learning
Addr. (0-64)
The number of MAC addresses that will be in the MAC address forwarding table for the
selected switch and group of ports.
Mode
This pull-down menu allows the option of how the MAC address table locking will be
implemented on the Switch, for the selected group of ports. The options are:
• Permanent – The locked addresses will only age out after the Switch has
been reset.
• DeleteOnTimeout – The locked addresses will age out after the aging timer
expires.
• DeleteOnReset – The locked addresses will not age out until the Switch has
been reset or rebooted.
Click Apply to implement changes made.
A given ports’ (or a range of ports')
dynamic MAC address learning can be
locked such that the current source MAC
addresses entered into the MAC address
forwarding table can not be changed once
the port lock is enabled. The port can be
locked by using the Admin State pull-
down menu to Enabled, and clicking
Apply.
Port Security is a security feature tha
t
p
revents unauthorized computers (with
source MAC addresses) unknown to the
Switch prior to locking the port (or ports)
from connecting to the Switch's locke
d
p
orts and gaining access to the network. To
view the following window, clic
k
Configuration > Port Security.