3Com 3C780 User Guide - Page 70
Dual Attachment Hub
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3-2 Configuring the Hub Dual Attachment Hub A dual attachment hub (DAC) attaches to both the primary and the secondary rings. Figure 3-1 shows a hub functioning as a dual attachment hub. Primary ring (trunk ring) Secondary ring DAC BA Legend Primary ring Secondary ring Figure 3-1. Dual Attachment Hub (DAC)
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3-2
Configuring the Hub
Dual Attachment Hub
A dual attachment hub (DAC) attaches to both the primary and the secondary
rings.
Figure 3-1 shows a hub functioning as a dual attachment hub.
B
A
DAC
Primary ring (trunk ring)
Secondary ring
Primary ring
Secondary ring
Legend
Figure 3-1.
Dual Attachment Hub (DAC)