Infinera Corporation

Oracle International Corporation

Sharfuddin Syed

Abhinava Shivakumar Sadasivarao

Chris Liou

Biao Lu

Loukas Paraschis

Steven Joseph Hand

Rajan Rao

Ping Pan

Radhakrishna Valiveti

How Tung Lim

Vasudha Bhaskara

Anthony Jorgenson

Ashwini Kumar Bhat

Michael Frendo

Jagwinder Singh Brar

Edward Everett Sprague

Sachin Jain

Ashok Kunjidhapatham

Daniel P Murphy

Kannan Raj

Vinay Ravuri

Rajasekar Venkatesan

Parthiban Kandappan

Mohit Misra

Sriram Subramanian

Tjandra Trisno

Balaji Balasubramanian

Christopher Liou

Sri Mohana Satya Srinivas Singamsetty

Sanjoy Bardhan

Vinod Narippatta

Mana Palai

Hao Su

Yatindra Chugh

David Bumstead

Kamran Farshchi

Robert Maher

Lu Biao

Biju Mathew

Balaji Gopalakrishnan

Stu Elby

A method includes receiving client data; extracting overhead data from the client data; mapping the client data into one or more frames, where each of the one or more frames has a frame payload section and a frame overhead section, where the client data is mapped into the one or more frames; inserting the overhead data into the frame overhead section of the one or more frames; transporting the one or more frames across a network by generating a plurality of optical subcarriers carrying the one or more frames; extracting the overhead data from the frame overhead section of the one or more frames; recovering the client data from the one or more frames; inserting the extracted overhead data into the recovered client data to create modified client data; and outputting the modified client data.

Providing access to client overhead while transparently transmitting the client signal over multiple optical subcarriers

Consistent with the present disclosure, a method and related system for secure autonomic optical transport networks are disclosed. The method includes steps for adding a network element in an optical network. The method includes an initial step of verifying, with a new network element, a first identifier certificate from a proxy network element. In a further step, a second identifier certificate from the new network element is verified with the proxy element. A registrar is used for verifying the second identifier certificate from the proxy network element and sending domain specific parameters to the proxy network element for forwarding to the new network element Next, a local certificate is generated on the new network element. The local certificate is derived from a secure module and sent to the proxy network element for forwarding to the registrar. Further, the new network element in the autonomic domain is enrolled, with the registrar. Moreover, the local certificate is signed with the registrar and the signed local certificate is sent to the new network element.

Secure autonomic optical transport networks

A method and system is described. A signal indicative of a failure of a first channel within a plurality of channels of a transmission signal traversing a signal working path in a network is received. The signal working path has a headend node, a tail-end node and an intermediate node. The first channel has a frequency band and a power level prior to failing. The signal working path is associated with a protection path. The protection path includes the intermediate node, optical cross-connects, and a transmitter supplying (ASE) light. The transmitter is activated to supply the ASE light within a frequency band and having a power level corresponding to the frequency band and power level associated with the first channel. The ASE light is supplied to a cross-connect, such that the cross-connect provides a transmission signal including the ASE light.

Framework for handling signal integrity using ASE in optical networks

Methods for, and network elements in, packet or optical transport networks are disclosed, including a network element comprising non-transitory computer readable medium storing computer-executable instructions configured as one or more software agents that when executed with computer hardware: determine a state of the network element, comprising comparing a current state of transient properties of the network element against a predetermined, expected state of the transient properties of the network element; and verify a state of other network elements or paths in the transport network by comparing a current state of one or more network-level constraints of the other network elements or paths against a predetermined, expected state of the one or more network-level constraints on the other network elements or paths. The computer hardware may further positively or negatively acknowledge received instructions to apply a configuration to the network element based on the determination and/or verification.

System and method of use of extensible network element software agents for state and network verifications in packet or optical transport networks

A method of executing in-session encryption verification includes receiving a plurality of client data packets for transmission through a network; receiving one or more test data packets for verifying an encryption device; merging the client data packets and the one or more test packets into a data stream; selecting security parameters for each packet in the data stream based on a corresponding packet type; encrypting each packet in the data stream using the encryption device and the corresponding security parameters; and transmitting the data stream comprising encrypted packets through the network. The method also includes decrypting the encrypted packets at a receiving system using congruent techniques.

In-service data plane encryption verification

A telemetry manager receives, from a network server, global data collection information about network components in an optical network device. The global data collection information includes identifiers for network nodes in the network components from which telemetry data are to be collected, and reporting frequency and encoding format for sending collected telemetry data to the network server. The telemetry manager identifies, from the global data collection information, local data collection information specified for a network component, and sends this information to a telemetry agent in the network component. The telemetry manager receives telemetry data generated by a network node of the network component, where the data is provided according to instructions in the local data collection information. The telemetry manager converts the telemetry data from its native format to an encoding format specified by the global data collection information, and sends the encoded telemetry data to the network server.

Streaming telemetry for optical network devices

Methods and systems for determining data transport paths through data transport subnetworks include a method for receiving, by circuitry of a computer system, a service request message from an edge node coupled with the circuitry of the computer system, the service request message including information indicative of: a first unique identifier of an ingress port of a first core node, the first core node being within a transport subnetwork; a second unique identifier of an egress port of a second core node within the transport subnetwork; and a requested transport path bandwidth. The method further comprises determining, by the circuitry of the computer system, a transport path through the transport subnetwork between the first core node and the second core node based on the service request message; and forming the transport path between the ingress port of the first core node and the egress port of the second core node.

Methods and systems for determining data transport paths through data transport

Methods and systems are disclosed for storing, in a non-transitory memory device, multi-layer network information comprising at least one of link availability, bandwidth availability, priority levels for paths in a multi-layer network, path status in the multi-layer network, and status for network elements in the multi-layer network; receiving, via at least one input component, a message from a network element in the network comprising information indicative of a failure of a working path in the network; determining, automatically, based at least in part on the multi-layer network information, an alternate path for transmission of the data traffic through the network; and transmitting, via at least one output component, at least one signal comprising configuration instructions to at least one optical line module, the configuration instructions directing the optical line module to switch and select the data traffic using the alternate path.

Multi layer network resiliency with software defined orchestration

A software defined network, in accordance with some examples of the disclosure, may be used to optimizing traffic across a multi-layer inter-exchange for applications like automated private peering by incorporating packet switching along with OTN and/or optical switching into a converged system. Participants in private peering may have ports into the multi-layer inter-exchange, some to the L2 fabric which supports multi-tenant peering and some to the L1 or L0 fabric for higher-performance private peering.

Systems and methods for multilayer peering

Methods and systems are disclosed for providing a signaling protocol to enable a bi-directional point-to-point Ethernet Virtual Circuits (EVC) to be configured between any two network elements, as part of a network infrastructure. The bi-directional EVC is established by configuration of a source network element and a destination network element, and defines a bi-directional data path across the network infrastructure therebetween. The EVC may include one or more network elements over which the data path may traverse. The methods and systems disclosed may be applied to linear, ring and mesh network topologies.

End-to-end provisioning of Ethernet Virtual Circuits

Apparatuses are disclosed including a node having a switch for communicating traffic from input interface to output interface; and a control module, located proximate to the input interface, output interface and switch, comprising a communication interface configured to connect to a third communication link external to the node and having a processor accessing network node configuration information and being configured to compute a path to a destination node through the output interface with the network node configuration information and also configured to be switched from a first state in which the processor provides first instructions to the switch to configure the switch to communicate the traffic from the input interface to the output interface, to a second state in which the processor provides second instructions, received via the communication interface, to the switch to configure the switch to communicate traffic from the input interface to the output interface.

Management and control of software defined networking enabled open transport networks

Systems and methods are disclosed including a computer system, comprising a software defined networking configuration manager having a processor computing and provisioning paths through an optical transport network for multiple switch nodes to be provisioned as head end nodes, the processor managing and interpreting data indicative of managed entities within the optical transport network to create a first network Sub-Network Connection (SNC) for a first customer, and a second network SNC for a second customer, the first network SNC being representative of a first graphical illustration of a state of first resources within the transport network that are allocated to the first customer, and the second network SNC being representative of a second graphical illustration of a state of second resources within the transport network that are allocated to the second customer.

Multi layer, multi vendor, multi domain, applications for software defined networking enabled networks

A method for receiving, by circuitry of an optical node adapted for wavelength multiplexing and wavelength switching, a signal over OSC comprising overhead information indicative of status of at least one of an optical layer in an OTN; wherein the signal utilizes OC-N frame format comprising a first STS frame, a second STS frame, and a third STS frame, the STS frames having a format wherein the information is assigned to a number of bits designated for OAM information, wherein the bits are assigned to bytes within a transport overhead portion of the STS frame format within the OC-N frame format; terminating, by circuitry of the optical node, the signal at the optical node; and notifying, by circuitry of the optical node, software of the status of the optical layer in the OTN.

Optical layer status exchange over OSC-OAM method for ROADM networks

The present invention provides a system, apparatus and method for providing point-to-point inter-chassis connections within chassis systems and/or network nodes. Multi-chassis systems within a network employ a protocol wherein a peer discovery process is initiated and the discovered neighbors are authentically verified before establishing an active state between point-to-point inter-chassis links.

Multi-chassis interconnect

Growing community of inventors

San Jose, CA, United States of America

Sharfuddin Syed