METHOD AND APPARATUS FOR LIMITING DISSEMINATION OF TOPOLOGY AND REACHABILITY INFORMATION IN AN OSPF AREA

A network element that acts as a hub in a hub and spoke topology is configured to limit the amount of topology and reachability information that is advertised to a set of one or more remote network elements that act as one or more spokes in the hub and spoke topology in a same routing area. The netw...

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Bibliographische Detailangaben
Hauptverfasser:	LINDEM III ALFRED C, CHENWHER
Format:	Patent
Sprache:	eng
Schlagworte:	ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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Beschreibung
Zusammenfassung:	A network element that acts as a hub in a hub and spoke topology is configured to limit the amount of topology and reachability information that is advertised to a set of one or more remote network elements that act as one or more spokes in the hub and spoke topology in a same routing area. The network element generates a set of one or two link state advertisements (LSAs) to advertise over an interface that connects at least one of the set of remote network elements to the network element wherein the set of LSAs includes information that describes a connection to the set of remote network elements and one or more aggregate routes. The network element advertises during a database exchange process with the one of the set of remote network elements the set of LSAs to the one of the set of remote network elements.