11 Port Redundancy
This chapter provides the information and instructions for using the Port Redundancy feature. It includes the following topics:
•Overview of Port Redundancy - An overview of port redundancy.
•Viewing the Port Redundancy Dialog Box - Instructions on accessing the Port Redundancy dialog box, and a description of the Port Redundancy dialog box.
•Adding a Port Redundancy - Instructions on configuring a new port redundancy.
•Port Redundancy Wizard - Detailed descriptions of the screens in the Port Redundancy Wizard.
•Deleting Port Redundancies - Instructions on deleting port redundancies.
•Updating the Device - Instructions on updating the device with the changes made to the Port Redundancy dialog box.
Overview of Port Redundancy
Port Redundancy enables you to define a redundancy relationship between any two ports or LAGs in a device, or between a port and a LAG. One port or LAG is defined as the primary port and the other as the secondary port. In case the primary port link fails, the secondary port takes over. This connection between the two ports is called a Port Redundancy.
An Intermodule Port Redundancy provides a port redundancy service that operates even when the primary port link fails as the result of a failure of the module. For example, if the module on which the primary port in an Intermodule Port Redundancy is located powers down or is removed from the device, the secondary port in the Intermodule Port Redundancy takes over.
*Note: Only one intermodule port redundancy can be configured on a device.
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