Method and apparatus for limiting topology and reachability information in an OSPF area

US9503357B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9503357-B2
Application numberUS-201514984191-A
CountryUS
Kind codeB2
Filing dateDec 30, 2015
Priority dateJul 9, 2012
Publication dateNov 22, 2016
Grant dateNov 22, 2016

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Abstract

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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.

First claim

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What is claimed is: 1. A method in an Open Shortest Path First (OSPF) hub router to limit an amount of topology and reachability information that is advertised to one or more OSPF spoke routers of a stub site that are in a same routing area as the OSPF hub router, wherein each of the one or more OSPF spoke routers are not within a Stub Area (SA) or a Not-So-Stubby Area (NSSA), the method comprising: performing a database exchange process, comprising: transmitting, to each of the…

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What does patent US9503357B2 cover?
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 i…
Who is the assignee on this patent?
Ericsson Telefon Ab L M
What technology area does this patent fall under?
Primary CPC classification H04L45/025. Mapped technology areas include Electricity.
When was this patent published?
Publication date Tue Nov 22 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).