Collapsed backbone, Fast ethernet switches with – Allied Telesis AT-GS900/24 User Manual
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AT-GS900/16, AT-GS900/24 Fanless Gigabit Ethernet Switches Installation Guide
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Collapsed
Backbone
In the topology illustrated in Figure 5, an AT-GS900/16 switch connects
Fast Ethernet switches that have Gigabit Ethernet uplinks. This type of
topology is often referred to as a collapsed backbone topology. The switch
functions as the focal point of the network and transfers an Ethernet frame
between the Fast Ethernet switches only when the destination end-node
for the frame is on a different switch than the end-node that originated the
frame. This reduces the amount of unnecessary data traffic in each
workgroup, freeing up bandwidth and improving network performance.
Figure 5. Collapsed Backbone - Hub Topology
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Fast Ethernet
Switches with
Legend
10 Mbps
100 Mbps
1000 Mbps
Gigabit Uplinks
AT-GS900/16 Fanless Gigabit Ethernet Switch