Lucent Technologies P550 - Manual (Page 89)

Configuring the Cajun P550 Switch (Layer 2 & Layer 3)
Cajun P550/P220 Switch Operation Guide 3 -43
Figure 3-9. Properly-Installed Redundant Hardware Settings
6. From the Configure Redundant Hardware pull-down menu, select Yes.
7. Click APPLY to save your changes.
The redundant hardware is enabled. If the primary controller fails, the redundant
controller takes over in its place. If an element fails, the redundant element takes
over in its place.
Replacing the Primary Controller
If the primary controller fails, you are notified by a console message and an event log
message. In the Web Agent, the
Switch Controller field displays # 0 Failed. If the
switch is installed with a redundant controller, the redundant controller automatically
takes over the operation of the failed primary controller.
To replace the primary controller:
1. In the System Information section of the Web Agent window, click Switch
Fabric. The Switch Fabric Status dialog box displays.
2. From the Configure Redundant Hardware pull-down menu, select No.
3. Click APPLY to disable the primary controller.