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1-4 About the PathBuilder S24x, 26x, and 27x switch
Applications
Regional
Concentrator
In Figure 1-3, the public network (Frame Relay/X.25) is performing the branch
concentration function with the PathBuilder S24x, 26x, and 27x switch routing the
traffic to the appropriate end point. In Figure 1-4, the PathBuilder S24x, 26x, and
27x switch acts as the regional concentrators, receiving traffic from dozens and even
thousands of remote sites, and concentrating the traffic before forwarding it to the
correct location. In this case, the PathBuilder S24x, 26x, and 27x switch is the
regional site.
In both examples, the PathBuilder S24x, 26x, and 27x switch could be either a single
node or a group of nodes networked together as a cluster. The PathBuilder S24x, 26x,
and 27x switch’s cluster feature is described below.
Figure 1-3. Regional Concentrator With Public Network Example
Frame Relay
or X.25
PB S200
Branch XX
PB S200
PBX
Host
Central Site
Branch 1
PB S200
(Single Node or Cluster)