Argela Yazilim Ve Bilisim Teknolojileri San Ve Tic A.s.

Argela Yazilim Ve Bilism Teknolojileri San. Ve Tic. A.s.

Melih Karaman

Seyhan Civanlar

Nazli Guney

Burak Gorkemli

Bulent Kaytaz

Murat Parlakisik

Uygar Ozen

Oguz Sunay

Mustafa Ergen

A method to check health of automatically discovered controllers comprises the steps of: (a) a first controller generating a first Controller-Advertisement message carrying the information required to identify and access the first controller when a new switch port becomes active; (b) the first controller sending the generated first Controller-Advertisement to a first switch having the newly activated port; (c) the first controller receiving at least a second Controller-Advertisement message from at least a second controller; (d) the first controller generating a third unsolicited Controller-Advertisement message with its access information to check health of the second controller; (e) the first controller receiving at least a fourth Controller-Advertisement message from the second controller indicating health information of the second controller, wherein the health information is stored in first controller's Controller Information Base (CIB).

Method to check health of automatically discovered controllers in software defined networks (SDNs)

A description of an interface and a system/method is provided to combine frequency, time and power domain resource partitioning between neighbor small cells whereby these cells can execute the resource partitioning, without resorting to a centralized management system, simply by periodically sharing topology-related and interference related information with one another. Such a scheme allows resource partitioning to be executed in real-time as more small cells are deployed into the network.

Interface between base stations for topology discovery to enable coordinated resource usage

Controllers in a Software Defined Network (SDN) automatically discover and authenticate each other as part of the control plane operations, without any need for manual configuration of other controllers. The new capability of such controllers is based on Controller-Advertisement messages transferred between controllers in the same or different SDNs. In doing so, multiple controllers can be used for load sharing, improved reliability under failure of a controller by enabling seamless take over and recovery. Moreover, controllers can cooperate to enable end-to-end services to work across multiple SDNs. Controller-Advertisement messages are also used to check the health statuses of discovered controllers in the same or different SDNs.

Automatic discovery of multiple controllers in Software Defined Networks (SDNs)

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Istanbul, Turkey

Melih Karaman