Freezing a port enables you to "lock" it so that no one can accidentally
reconfigure sensitive attributes such as port authentication or default role
settings. For example, if a port is frozen and the administrator
later assigns a default role to the entire device, the frozen port will not receive the new default role. To
reconfigure a frozen port, you must clear its frozen status, do the configuration, then
freeze it again. One application
of this feature would be to prevent interswitch link ports from being accidentally reconfigured.
You can tell if a port is frozen or not by looking at the port
icon 
or by checking the
Frozen Status on the Port Properties General tab.
The Frozen Port feature is a software feature available in Policy Manager. It does not freeze the ports in the switch firmware itself, but protects the user from making configuration changes to sensitive ports using the software application. Therefore, setting a port to be frozen in Policy Manager will not automatically set the port to be frozen in other NetSight applications.
You can freeze ports as part of the general port configuration process in the Port Configuration Wizard, or you can freeze or clear frozen ports on an individual or selected port basis.
You cannot terminate sessions on frozen ports.
Instructions on:
Freezing/Unfreezing a Port
To freeze or clear a single port:
The quickest way to freeze a single port or clear it is to select the port and use the right-click menu Set Frozen or Clear Frozen options.
- In the left-panel Network Elements tab, select the device where the port resides and expand the slot or ports grouping in the right-panel Details view.
- Right-click the port you want to freeze or unfreeze, and select Set Frozen or Clear Frozen.
You can also freeze a port or clear a port's frozen state on the Port Properties window General tab.
| NOTE: | You can freeze multiple ports or clear them by holding down the Shift or Control key while selecting the ports in the right
panel.
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Freezing/Unfreezing a Device
You can freeze all the ports on a single device or clear them by selecting the device and using the right-click menu Set Frozen or Clear Frozen option.
To freeze or unfreeze an entire device:
- In the left panel, select the Network Elements tab.
- Right-click the device whose ports you want to freeze or unfreeze.
- To freeze all the device's ports, select Set Frozen. To unfreeze all the device's ports, select Clear Frozen.
For information on related windows:
For information on related tasks:
