The assignee for this patent application is
Reporters obtained the following quote from the background information supplied by the inventors: "Telecommunications systems, cable television systems and data communication networks use optical networks to rapidly convey large amounts of information between remote points. In an optical network, information is conveyed in the form of optical signals through optical fibers. Optical fibers comprise thin strands of glass capable of communicating the signals over long distances with very low loss. Optical networks often employ redundancies to maximize performance and availability. Such redundancies may include optical unidirectional path switched ring (OUPSR). With OUPSR, an optical signal may be transmitted via two or more optical paths between the same source and destination node. An OUPSR device at the destination may include a photodetector per each path to monitor signals received from the two or more paths. Based on such received signals, the OUPSR device may select one of the signals to be forwarded to a transponder or receiver at the destination node. For example, the OUPSR may determine, based on the photodetector monitoring, whether one of the paths has experienced a loss of signal or 'loss of light.' If a particular path experiences a loss of light, then the OUPSR may select another path to forward to the transponder or receiver. Such selection may be referred to as a 'protection switch.'
"A particular communication network may include a plurality of network elements for carrying Ethernet traffic between two or more clients via a synchronous optical network (SONET), Optical Transport Network (OTN), or another suitable network. End-to-end latency between clients in an OTN or
In addition to obtaining background information on this patent application, VerticalNews editors also obtained the inventors' summary information for this patent application: "In accordance with a particular embodiment of the present disclosure, a network element may include a network-side interface configured to communicatively couple to a network and a controller communicatively coupled to the network-side interface. The controller may be configured to periodically receive one or more messages indicative of a delay for each of a plurality of paths for a network flow between the network element and a second network element, periodically compare the delays for the plurality of paths, and select a path for a network flow from the plurality of paths based on the delays.
"Technical advantages of the present disclosure may be readily apparent to one skilled in the art from the figures, description and claims included herein. The objects and advantages of the embodiments will be realized and achieved at least by the elements, features, and combinations particularly pointed out in the claims.
"It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are not restrictive of the invention, as claimed.
BRIEF DESCRIPTION OF THE DRAWINGS
"For a more complete understanding of the present invention and its features and advantages, reference is now made to the following description, taken in conjunction with the accompanying drawings, in which:
"FIG. 1 is a block diagram illustrating an example optical network, in accordance with embodiments of the present disclosure;
"FIG. 2 illustrates a flow chart of an example method for dynamic selection of a transport path with lowest latency, in accordance with embodiments of the present disclosure;
"FIG. 3 is a block diagram illustrating an example protected network to which the methods and systems of the present disclosure may be applied, in accordance with embodiments of the present disclosure; and
"FIG. 4 is a block diagram illustrating another example protected network to which the methods and systems of the present disclosure may be applied, in accordance with embodiments of the present disclosure."
For more information, see this patent application: Sarwar, Muhammad S.; Putnins,
Keywords for this news article include: Ethernet,
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