Friday, June 10, 2011

Autonomous Switching vs Silicon Switching


• Autonomous switching

With this type of switching, an incoming packet matches an entry in the autonomous-switching cache located on the interface processor.
Autonomous switching provides faster packet switching by allowing the ciscoBus controller to switch packets independently without having to interrupt the system processor.
It is available only on Cisco 7000 series routers and in AGS+ systems with high-speed network controller cards.

• SSE switching

With this type of switching, an incoming packet matches an entry in the silicon-switching cache located in the silicon switching engine (SSE) of the Silicon Switch Processor (SSP) module.
This module is available only on Cisco 7000 series routers.
Silicon switching provides very fast, dedicated packet switching by allowing the SSE to switch packets independently without having to interrupt the system processor.

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