Chapter 4: Web configuration
NS3552-8P-2S-V2 User Manual
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Object
Description
Port
The port number for which the status applies. Click the port number to see
the status for this particular port.
Users
Each of the user modules has a column that shows if that module has
enabled Port Security. A '-' means that the corresponding user module is not
enabled, whereas a letter indicates that the user module abbreviated by that
letter has enabled port security.
State
Shows the current state of the port. It can take one of four values:
Disabled
: No user modules are currently using the Port Security service.
Ready
: The Port Security service is in use by at least one user module, and
is awaiting frames from 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 web 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 (-).
Buttons
• Click
Refresh
to refresh the page immediately.
• Click
Auto-refresh
to refresh the page automatically. Automatic refresh occurs
every three seconds.
Port security detail
The Port Security Port Status page shows the MAC addresses secured by the Port
Security module. Port Security is a module with no direct configuration. Configuration
comes indirectly from other 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.
Summary of Contents for NS3552-8P-2S-V2
Page 1: ...NS3552 8P 2S V2 User Manual P N 1073552 EN REV B ISS 25JAN19 ...
Page 41: ...Chapter 3 Switch management NS3552 8P 2S V2 User Manual 39 ...
Page 73: ...Chapter 4 Web configuration NS3552 8P 2S V2 User Manual 71 ...
Page 147: ...Chapter 4 Web configuration NS3552 8P 2S V2 User Manual 145 ...
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