Chapter 2: System Architecture
Card Architecture
18 SmartBits System Reference
Card Architecture
The three general types of SmartBits card architecture reflect the increasingly complex
demands of networks and network devices. Each type serves a vital role in performance
analysis of a network and its components.
Figure 2-5. Where Card Architecture Types Function
For a list of cards supporting each application, refer to the chapter on each card type.
Table 2-3. Architecture of Cards by Emphasis on Layer Testing
Card Processor Type Designed for testing...
Traditional
also known as “packet-blasters”
TCP/IP Layers 1, 2 and 3
SmartMetrics TCP/IP Layers 2 through 5, with an emphasis on
Layers 3 and 4, and latency measurements
TeraMetrics TCP/IP Layers 2 through 5, with an emphasis on
high speed technologies and advanced testing
methodologies implemented via a onboard
Pentium/Linux processor
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