User Manual

Psion Teklogix 9160 Wireless Gateway User Manual 59
Chapter 6: Managing Access Points & Clusters
Cluster Formation
Standalone access points are not listed on the Cluster, Access Points tab in the
Administration UIs of APs that are cluster members. You need to know the IP
addresses for standalone access points in order to configure and manage them
directly. (See “Navigating To An AP By Using Its IP Address In A URL” on
page 63.)
The Basic Settings tab for a standalone access point indicates only that the current
mode is standalone and provides a button for adding the access point to a cluster
(group). If you click on any of the Cluster tabs on the Administration pages for an
access point in standalone mode, you will be redirected to the Basic Settings page
because Cluster settings do not apply to standalone APs.
Note: When the cluster is full (eight APs is the limit), extra APs are added in stan-
dalone mode regardless of the configuration policy in effect for new access
points. See “How Many APs Can A Cluster Support?” on page 56.
You can re-enable cluster mode on a standalone access point. (See “Adding An
Access Point To A Cluster” on page 62.)
6.3.7 Cluster Formation
A cluster is formed when the first 9160 Wireless Gateway is configured. (See
Chapter 4: “Quick Steps For Setup And Launch” and Chapter 5: “Configuring
Basic Settings”.)
If a cluster configuration policy is in place, when a new access point is deployed, it
attempts to rendezvous with an existing cluster.
If it is unable to locate a cluster, then it establishes a new cluster on its own.
If it locates a cluster but is rejected because the cluster is full, or the clustering policy
is to ignore new access points, then the access point will deploy in standalone mode.
6.3.8 Cluster Size And Membership
The upper limit of a cluster is eight access points. The “Cluster” Web administration
pages provides a real-time, visual indicator of the number of access points in the
current cluster and warn when the cluster has reached capacity. (See “Configure
‘Basic Settings’ And Start The Wireless Network” on page 42.)
If a cluster is present but is already full, new access points will deploy in standalone
mode.