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Chapter 6: Managing Access Points & Clusters

Cluster Formation

58 Psion Teklogix 9160 G2 Wireless Gateway User Manual

• Load Balancing settings.

• WDS bridges.

• Ethernet (Wired) Settings.

• Guest interface configuration.

Settings that are not shared must be configured individually on the Administration pages for

each access point. To get to the Administration pages for an access point that is a member of

the current cluster, click on its IP Address link on the Cluster > Access Points page of the

current AP.

6.3.6 Cluster Formation

A cluster is formed when the first AP is deployed with clustering enabled. The AP attempts

to rendezvous with an existing cluster. If it is unable to locate any other APs on the subnet

with the same cluster name, then it establishes a new cluster on its own.

6.3.7 Cluster Size And Membership

Currently, there is no hard limit on the number of APs in a cluster. Validation testing has ver-

ified a dozen or more supported on the same subnet. You can include as many APs as

needed in a cluster at any one time.

Cluster membership is determined by:

• Cluster Name - APs with the same name will join the same cluster (see “Setting The

Cluster Name” on page 60).

• Whether clustering is enabled - Only APs for which clustering is enabled will join a

cluster (see “Starting Clustering” on page 60 and “Stopping Clustering” on page 61).

6.3.8 Intra-Cluster Security

For purposes of ease-of-use, the clustering component is designed to let new devices join a

cluster without strong authentication. However, communications of all data between access

points in a cluster is protected against casual eavesdropping using Secure Sockets Layer

(SSL). The assumption is that the private wired network to which the devices are connected

is secure. Both the cluster configuration file and the user database are transmitted among

access points using SSL.

6.4 Understanding Access Point Settings

The Access Points tab provides information about all access points in the cluster. From this

tab, you can view location descriptions, MAC addresses, IP addresses, enable (activate) or

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