Overview of the S9500 Series Switching System

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S9500 adopts the switch architecture based on Crossbar which implements non-block switch with a matrix structure. The Crossbar switch network will not have blocks due to the bandwidth bottleneck. The S9500 switch architecture is illustrated in the following picture:

PP: Packets Processor, responsible for forwarding packets and managing the cache and queue.

FA: Fabric/Stacking Adapter, used as the adapter for establishing a connection between PP and Crossbar.

Crossbar: An advanced switching technology to connect multiple PPs with FA.

The packet received by S9500 enters PP through PHY. PP analyzes the packet and decides whether to abandon, forward or send it to CPU. Forwarding includes intra-board forward and trans-board forward. For trans-board forwarding, the packet is delivered by the local FA to the peer FA through the crossbar, and forwarded by the peer PP.

S9500 establishes an independent management channel for communication between the MPU CPU and the LPU CPU.

 

案例信息

案例类型:FAQ
案例号:KMS - 8608
创建时间:2007年1月16日
更新时间:2007年2月27日
发布时间:2007/2/27 5:00:51
文章密级:游客可见
有效期:长期有效
发布者:刘志伟【技术大咖】 [l05671]
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