Basic Remote Bridging Examples

A Less Complex Extended Bridge

Figure 11 shows a possible arrangement of SVCs (PVCs for Frame Relay) that produces the same bridge arrangement as shown in Figure 10.

Node 1

Token

Bridge 1

 

Ring 1

Bridge 2

 

 

SVC Connectors

 

Node 3

Token

Bridge 2

 

Ring 3

Bridge 3

 

Node 2

Bridge 1

Bridge 3

Token Ring 2

Figure 11. Example of Bridges in an SVC Arrangement

In this arrangement, all LAN segments are one hop away from each other since they are directly attached by a single pair of bridges. In Figure 11, Token Ring 1 is one bridge away from Token Ring 2 and Token Ring 3 and the same applies for the other rings.

From a bridged network point of view, Token Ring 1 is one bridge away from Token Ring 3, but Node 1 is not directly connected to Node 3. Traffic between Token Ring 1 and Token Ring 3 does not have to pass through Token Ring 2. This is an important advantage in configuring bridge networks with the PathBuilder S200 series switch because you can form a minimal bridge network to accomplish the desired interconnectivity.

16

Bridging

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EXP Computer S200 manual Example of Bridges in an SVC Arrangement