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NS3503-16P-4C User Manual
Object
Description
Port
Display the current port
VLAN ID
Display the current VLAN
MAC Address
Display the current MAC address
IP Address
Display the current IP Address
Type
Display the current entry type
Lease Time
Display the current lease time
Action
Click
to delete IP source guard binding table status entry
4.9.10 Port Security
This page allows you to configure the Port Security Limit Control system and port settings. Limit Control
allows for limiting the number of users on a given port. A user is identified by a MAC address and VLAN
ID. If Limit Control is enabled on a port, the limit specifies the maximum number of users on the port. If
this number is exceeded, an action is taken. The action can be one of four different as described below.
The Limit Control module is one of the modules that utilize a lower-layer module while the Port Security
module manages MAC addresses learned on the port.
The Limit Control configuration consists of two sections, a system- and a port-wid. The IP Source Guard
Static Binding Entry and Table Status screens in Figure 4-9-64 and Figure 4-9-65 appear.
Figure 4-9-64 Port Security Setting Page Screenshot
The page includes the following fields:
Object
Description
Port
Select port for this drop down list
Security
Enable or disable the port security
Mac L2 Entry
The maximum number of MAC addresses that can be secured on this port. If
the limit is exceeded, the corresponding action is taken.
The switch is "born" with a total number of MAC addresses from which all ports
draw whenever a new MAC address is seen on a Port Security-enabled port.
Since all ports draw from the same pool, it may happen that a configured
maximum cannot be granted, if the remaining ports have already used all
available MAC addresses.
