Users Guide

Table Of Contents
386 | Control Plane Security Dell PowerConnect ArubaOS 5.0 | [User Guide
To view your current cluster configuration via the command-line interface, issue the CLI commands described in
Table 75.
Replacing a Controller on a Multi-Controller Network
The procedure to replace a controller within a multi-controller network varies, depending upon the role of that
controller, whether the network has a single master controller or a cluster of master controllers, and whether or
not the controller has a backup.
Replacing Controllers in a Single Master Network
Use the procedures in this section to replace a master or local controller in a network environment with a single
master controller.
Replacing a Local Controller
Use the following procedure to replace a local controller in a single-master network.
1. Disconnect the local controller from the network.
2. If you plan on moving the local controller to another location on the network, purge the campus AP whitelist
on the controller.
Access the command-line interface on the old local controller and issue the command whitelist-db cpsec
purge
-or-
Access the local controller WebUI, navigate to Configuration>AP Installation>Campus AP Whitelist and
click Purge.
3. Once the campus AP whitelist has been purged, you must inform the master controller that the local
controller will no longer be available. .
Access the command-line interface on the master controller, and issue the command whitelist-db cpsec-local-
ctrl-list del mac-address <local-controller-mac>
-or -
Access the maser controller WebUI, navigate to the Configuration>Controller>Control Plane Security
Table 75 CLI Commands to Display Cluster Settings
Command Description
show cluster-switches When you issue this command from the cluster root, the output of this command displays
the IP address of the VLAN used by the cluster member to connect to the cluster root.
If you issue this command from a cluster member ,the output of this command displays
the IP address of the VLAN used by the cluster root to connect to the cluster member.
show cluster-config When you issue this command from the cluster root, the output of this command shows
the cluster role of the controller, and the IP address of each active member controller in
the cluster.
When you issue this command from a cluster member, the output of this command
shows the cluster role of the controller, and the IP address of the cluster root.
Note: The following sections describe the steps to replace an existing controller. To add a new local controller to a network, or
permanently remove a local controller without replacing it, see “Viewing and Managing the Master or Local controller Whitelists”
on page382.
Note: This step is very important; unused local controller entries in the local controller whitelist can significantly increase network
traffic and reduce controller memory resources.