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7.3 Port Status
Parameter
Description
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
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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 user 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.
Specify the port that you want to monitor.
2.
Checked “Auto
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Refresh”.
Figure 4-7.3: The Port Security Port Status
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.
If aging is disabled or a user module has decided to hold the MAC address
indefinitely, a dash (
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) will be shown.
Auto
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refresh:
Check “Auto
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Refresh” to refresh the information automatically.
Upper right icon (Refresh):
Click “Refresh” to refresh the Port Security Port Status
information manually.
