Software defined networking systems and methods via a path computation and control element

Patent metadata

Field	Value
Publication number	US-9509728-B2
Application number	US-201414579265-A
Country	US
Kind code	B2
Filing date	Dec 22, 2014
Priority date	Oct 5, 2012
Publication date	Nov 29, 2016
Grant date	Nov 29, 2016

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.

First claim

What is claimed is:

1. A Software Defined Networking (SDN) method implemented in a Path Computation Element (PCE) in a network, the SDN method comprising:
receiving a request for a connection in the network from an application that does not have a detailed view of the network;
computing a path for the connection responsive to the request, wherein the PCE has up-to-date knowledge of network topology and available bandwidth in the network; and
requesting a Path Computation Clien…

Assignees

• Ong Lyndon Y
• Ciena Corp

Inventors

• Ong Lyndon Y

Classifications

• H04L45/42

  Electricity · mapped topic

• H04L45/44

  Electricity · mapped topic

• H04L41/12 Primary

  Electricity · mapped topic

• H04L65/1069 Primary

  Electricity · mapped topic

• H04L41/40

  Electricity · mapped topic