Administrator Guide

142 | Deploying W-ClearPass Clusters Dell Networking W-ClearPass Deployment Guide
Examples of Customer Cluster Deployments
This section provides two examples of typical customer cluster deployments.
Authenticating Corporate Users with Guest Access
In this example, a cluster of W-ClearPass 5K hardware appliances (CP-HW-5K) has two nodes—U.S. East Coast
and U.S. West Coast (see Figure 123).
l US-West is the Publisher.
l US-East is the Subscriber.
l Each node handles the authentication traffic for 2,000 corporate endpoints. Each node also registers 100
guests per day.
l There are few configuration updates in the network.
In this example, each node could be used as the backup for the other node. In the event of a node failure, the
other node could handle the authentication requirements of all 4,000 endpoints in addition to 200 guest
registrations per day.
Figure 123 Example of a Medium-Scale Cluster Deployment
This fictitious customer example would not be considered a large-scale cluster deployment, for the following
reasons:
l The additional load on the Publisher due to clustering can be estimated at 100 guest accounts created per
day.
l The authentication traffic on the Subscriber node does not impose any additional load on the Publisher
and the new endpoints registered (in the order of 100 per day, assuming new guests each day) does also
not add any significant load.
l The workload on the Publisher is small and represents a fraction of its capacity.