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用于控制功能和信包功能的微处理器,构成了现代网络设备的心脏。基于MIPS的64位微处理器目前用于从边缘到核心的所有网络领域:接入、城域光网、传输。但是,对更高线路速率和更多功能的双重要求,令设计人员有必要探索网络设备中处理能力的新系统结构。通信业的线路速率每十二个月增加一倍,而根据摩尔定律的预言,处理器能力每十八个月提高一倍。除此数据速率的增加外,人们还需要许多令网络更安全、可靠且更易于管理的新功能。下一代网络设备的性能要求揭示了传统微处理器的不足。
Microprocessors for controlling functions and envelope functions form the heart of modern network equipment. MIPS-based 64-bit microprocessors are currently used in all network areas from the edge to the core: access, metro optical network, transport. However, the dual requirements for higher line rates and more features make it necessary for designers to explore new system architectures for processing power in networked devices. The line rate of the telecommunications industry doubles every twelve months, and according to Moore’s Law, processor power is doubled every 18 months. In addition to this increase in data rates, people also need many new features that make the network safer, more reliable, and easier to manage. The performance requirements of next-generation network devices reveal the shortcomings of traditional microprocessors.