Publication date: June, 2015
Revision A1
3-5.1.1.2 Port
This section shows the MAC addresses secured by the Port Security module. Port Security is a
module with no direct configuration. Configuration comes indirectly from other modules - the
user modules. When a user module has enabled port security on a port, the port is set-up for
software-based learning. In this mode, frames from unknown MAC addresses are passed on to
the port security module, which in turn asks all user modules whether to allow this new MAC
address to forward or block it. For a MAC address to be set in the forwarding state, all enabled
user modules must unanimously agree on allowing the MAC address to forward. If only one
chooses to block it, it will be blocked until that user module decides otherwise.
Web Interface
To configure a Port Security Switch Status Configuration in the web interface:
1. Click Security, Network, Port Security,then Port.
2. Specify the Port which you want to monitor.
3. Checked “Auto-refresh”.
4. Click “ Refresh“ to refresh the port detailed statistics.
Figure 3-5.1.1.2: The Port Security Port Status
Parameter description:
MAC Address & VLAN ID :
The MAC address and VLAN ID that is seen on this port. If no MAC addresses are learned, a
single row stating "No MAC addresses attached" is displayed.
State :
Indicates whether the corresponding MAC address is blocked or forwarding. In the blocked
state, it will not be allowed to transmit or receive traffic.
Time of Addition :
Shows the date and time when this MAC address was first 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 still forwards 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.
To Next Page
