Based on point-to-point links, a HyperTransport chain may be extended into a fabric, using single and multi-link devices together. Devices defined for HT include:
These devices are the basic building blocks for the HT fabric and are illustrated in Figure 2-11. Figure 2-11. Basic HT Device Types
Figure 2-12 exemplifies a HyperTransport topology that includes all three device types previously discussed. The basic difference between an HT-to-HT bridge and a tunnel device is:
Figure 2-12. HyperTransport Topology Supporting All Three Major Device Types
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