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Mac Count (Current,
Limited)
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 (-). Indicates the number of currently learned MAC addresses (forwarding as well as
blocked) on the port. If no user modules are enabled on the port, a dash (-) will be shown.
Buttons
Auto-refresh: Check this box to refresh the page automatically. It will do so every 3 seconds.
Refresh: Click to refresh the page.
Port Security
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 the user modules. When a user module has been 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 to allow this new MAX 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 the address will be blocked until that user module decides otherwise.
To display a Port Security Switch Status Configuration in the web interface:
Click Monitor / Security / Network / Port Security / Port
Scroll to select the Port Number of the port to be displayed.
Check the Auto-Refresh check box to have the page automatically refresh every 3 seconds
Port Security Statistics Parameters:
Items
Description
Mac Address and 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. If aging is disabled or a user module
has decided to hold the MAC address indefinitely, a dash (-) will be shown.
Buttons
Auto-refresh: Check this box to refresh the page automatically. It will do so every 3 seconds.
Refresh: Click to refresh the page.
Clear: Clears the counters.
Summary of Contents for S81
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