当从某个端口收到一个数据报文(Packet)或数据帧(Frame)时，转发引擎(Forwarding Engine)通过解析，查表，应用策略(如 QoS)，最后，将报文或帧从另一个端口转出。
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Software Forwarding Engine 软件转发引擎
Inner Forwarding Engine 内部转发引擎
packet forwarding engine 数据转发引擎
forwarding engine component 转发构件
high-speed forwarding engine 高速转发引擎
Lookup and forwarding engine 查找转发引擎
high speed forwarding engine 高速转发引擎
This paper proposes a distributed parallel forwarding engine to solve this problem based on parallel processing.
基于并行处理技术，提出分布式并行转发引擎结构，实现高速报文转发。
The bottleneck of the router is not depended on the speed of the port, but depended on by the speed of the forwarding engine.
但是对于路由器而言，一般路由器的瓶颈在于转发引擎的处理速率而不在于端口速率。
Especially, the designs of forwarding table, forwarding table update and transferring data-driven message from forwarding engine to main controller are given.
进而设计了转发表的格式、转发表的更新机制以及从转发到主控的数据驱动报文实现形式。
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