SOFTWARE DEFINED NETWORKING SYSTEMS AND METHODS VIA A PATH COMPUTATION AND CONTROL ELEMENT
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Abstract
Software Defined Networking systems and methods are described via a Path Computation and Control Element (PCCE) that is based in part on a Path Computation Element (PCE). A common, simple interface is designed based on an existing PCE interface that allows a centralized entity (i.e., a Path Computation and Control Element or PCCE) to control the initiation of new connections or tunnels and by default to manage the state of these connections or tunnels once established. In particular, the systems and methods create an extension to the PCE architecture to allow a centralized application or applications to control the creation, rerouting and deletion of connections within a network.
12 Citations
39 Claims
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1-19. -19. (canceled)
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20. A Software Defined Networking (SDN) method implemented in a Path Computation Element (PCE) in a network, the SDN method comprising:
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receiving a request for a connection in the network; computing a path for the connection responsive to the request; and requesting a Path Computation Client (PCC) establish the connection on the path, through a control plane of the network. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28)
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29. A Path Computation Element (PCE) in a network configured for Software Defined Networking (SDN), the PCE comprising:
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a network interface; a processor coupled to the network interface; and memory storing instructions that, when executed, cause the processor to receive a request for a connection in the network, compute a path for the connection responsive to the request, and request a Path Computation Client (PCC) establish the connection on the path, through a control plane of the network. - View Dependent Claims (30, 31, 32, 33, 34, 35, 36, 37)
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38. A network configured for Software Defined Networking (SDN) utilizing a Path Computation Element (PCE), the network comprising:
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a plurality of network elements communicatively coupled therebetween; a control plane operating between the plurality of network elements; and the Path Computation Element configured to receive a request for a connection in the network, compute a path for the connection responsive to the request, and request a Path Computation Client (PCC) establish the connection on the path, through a control plane of the network. - View Dependent Claims (39)
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Specification