Security
HMG-838PT & HMG-838EPT Web Configuration 5-20
unknown MAC addresses to arrive.
Limit Reached: The Port Security service is enabled by at least the Limit Control user module, and that
module has indicated that the limit is reached and no more MAC addresses should be taken in.
Shutdown: The Port Security service is enabled by at least the Limit Control user module and that module
has indicated that the limit is exceeded. No MAC addresses can be learned on the port until it is
administratively re-opened on the Limit Control configuration page.
MAC Count (Current/Limit): The two columns indicate the number of currently learned MAC addresses
(forwarding as well as blocked) and the maximum number of MAC addresses that can be learned on the port,
respectively. If no user modules are enabled on the port, the Current column will show a dash (-). If the Limit
Control user module is not enabled on the port, the Limit column will show a dash (-).
5-2.1.3 Port Status
This page shows MAC addresses learned on a particular port.
Port Security Port Status: (Use pull-down menu to select the port)
MAC Address: When “Port Security Limit Control” is enabled globally and on a port, MAC addresses learned on a
port show in here.
VLAN ID: Display VLAN ID that is seen on this port.
State: Display whether the corresponding MAC address is forwarding or blocked. In the blocked state, it will not
be allowed to transmit or receive traffic.
Time of Addition: Display the date and time when this MAC address was seen on the port.
Age/Hold: If at least one user module has decided to block this MAC address, it will stay in the blocked state until
the hold time (measured in seconds) expires. If all user modules have decided to allow this MAC address to
forward, and aging is enabled, the Port Security module will periodically check that this MAC address is still
forwarding traffic. If the age period (measured in seconds) expires and no frames have been seen, the MAC
address will be removed from the MAC table. Otherwise a new age period will begin. If aging is disabled or a user
module has decided to hold the MAC address indefinitely, a dash (-) will be shown.
5-2.1.4 Link Detection
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