A routing system decouples the routing functionality from the packet forwarding functionality. The decoupling of functionality is accomplished by coupling a set of routing engines to a set of packet-forwarding engines via a switch. The decoupling of functionality allows the routing system to easily be reconfigured and scaled. The decoupling of functionality also reduces the susceptibility of concurrently executing software processes from the malfunction of a single software process.

 
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> Network device including dedicated resources control plane

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