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Main article: "Forwarding table

Routing tables are generally not used directly for "packet forwarding in modern router architectures; instead, they are used to generate the information for a smaller "forwarding table. A forwarding table contains only the routes which are chosen by the "routing algorithm as preferred routes for "packet forwarding. It is often in a compressed or pre-compiled format that is "optimized for hardware storage and "lookup.

This router architecture separates the "Control Plane function of the routing table from the "Forwarding Plane function of the forwarding table.[3] This separation of control and forwarding provides uninterrupted performance.

See also[edit]


  1. ^ Requirements for IPv4 Routers, F. Baker, "RFC 1812, June 1995
  2. ^ Ingress Filtering for Multihomed Networks,"RFC 3704, F. Baker & P. Savola,March 2004
  3. ^ Forwarding and Control Element Separation (ForCES) Framework, L. Yang et al., RFC3746,April 2004.

External links[edit]

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