METHOD AND APPARATUS FOR REMOVING BGP STATE FROM NETWORK EDGE ELEMENTS
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United States of America Patent
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Issued Date -
Dec 5, 2013
app pub date -
May 31, 2012
filing date -
May 31, 2012
priority date (Note) -
Abandoned
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Abstract
A core network aggregates control information and generates forwarding information at a route controller distinct from each of a plurality of provider edge (PE) routers along the edge of the core network. A network controller generates forwarding state indicative of a next hop router along the edge. Message traffic traversing the core identifies a destination PE, or exit interface, router from forwarding state pushed to the PE routers by the network controller. Aggregation of the forwarding information at the router controller and generating the forwarding state at the network controller removes control plane from the edge (PE) routers of the core to eliminate the need for BGP at the edge routers and provide a BGP free edge. This simplifies the edge architecture as well as directly accelerates the new service delivery by any given autonomous system.
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