Ciena

About: Ciena is a company organization based out in Hanover, Maryland, United States. It is known for research contribution in the topics: Signal & Node (networking). The organization has 1259 authors who have published 1557 publications receiving 25989 citations.

Systems and methods for tracking, predicting, and mitigating advanced persistent threats in networks

Abstract: Systems and methods for tracking, predicting, and mitigating Advanced Persistent Threat (APT) attacks in a network include detecting, from monitoring, events related to one or more subscribed entities, wherein the monitoring includes two or more of analyzing traffic flow, analyzing virtual currency transactions, and monitoring information related to the one or more subscribed entities on the Internet; analyzing the events to determine a likelihood of an attack on a specific subscribed entity of the one or more subscribed entities; and causing mitigation of the attack based on the determined likelihood, wherein the mitigation comprises one or more actions in the network relative to the specific subscribed entity.

Optical fiber precision handling tool

Abstract: A metrology frame for holding, transporting and aligning optical fibers while interconnecting optical fibers. The metrology frame includes an elongated rail and a pair of brackets slidably attached to the rail. The brackets are interconnected to a drive mechanism for moving the brackets along the rail. Attached to the brackets are aligning devices that orient and secure the optical fibers that are led from a fiber cassette. The metrology frame allows the optical fibers to be transferred through a series of optical fiber interconnection steps without having to re-secure or re-orient the fibers between the steps.

Method and system for encoding data for transmission over a serial link

Abstract: An exemplary embodiment of the invention is a method for encoding data into a 48B/50B format for transmission over a serial link. A data stream that includes characters is received and segmented into a six-character block. The block of six characters is translated into a 50-bit byte frame in 48B/50B format. A 48-bit word is created from the block of six characters by encoding the characters contained in the block (204). The 48-bit word is scrambled (206) and a 2-bit synchronization sequence is appended (208) to the scrambled 48-bit word. The result is the 50-bit byte frame in 48B/50B format. An alternate embodiment of the present invention includes a method for decoding data from the 48B/50B format.

Multicast systems and methods for segment routing

Abstract: Multicast systems and methods for Segment Routing include receiving, at a node, a multicast packet including an outer label comprising a Multiprotocol Label Switching (MPLS) source node identifier defining a source-rooted broadcast tree and an inner label including a service identifier defining a service specific multicast tree; responsive to the node including a branch point on the source-rooted broadcast tree, popping the outer label, analyzing the inner label to identify active egress ports, pushing back the outer label, and forwarding the multicast packet to the active egress ports; and responsive to the node including point-to-point transit for the source-rooted broadcast tree, forwarding the multicast packet on the source-rooted broadcast tree.

Flexible ethernet client multi-service and timing transparency systems and methods

Abstract: A node configured to support multi-service with Flexible Ethernet (FlexE) includes circuitry configured to receive a client signal, wherein the client signal is different from a FlexE client; and circuitry configured to map the client signal into a FlexE shim. A method, implemented in a node, for supporting multi-service with Flexible Ethernet (FlexE) includes receiving a client signal, wherein the client signal is different from a FlexE client; and mapping the client signal into a FlexE shim.