Infinera Corporation

Cisco Technology, Inc.

Other

Madhukar Anand

Ramesh Subrahmaniam

Sanjoy Bardhan

Radhakrishna Valiveti

Ramesh Iyer

Varun A Shah

Hasmit S Grover

Jahnavi Chandra Prasad

Balaji Balasubramanian

Paul Wells

Stuart D Elby

Sachet Ashok Shukla

Soumya Roy

Methods, devices, and systems for mapping transport segment labels to packet network endpoints using a mapping server. In some implementations, an end point address in an edge domain is received from an edge router, a mapping of one of the end point address to a transport segment label is received from a network device, the mapping is stored in a non-transitory memory device, and the mapping is transmitted to the edge router.

End point mapping service to assist transport segment routing

A method and system for flow tracing for use in a packet-optical network is disclosed herein. A device in the packet-optical network may receive a packet including a header and payload. The device may read intent information from the header, and translate the intent information to generate a device-specific action in an optical layer to provide one or more globally unique identifiers (IDs) associated with the device. The device may execute the device-specific action in the optical layer to generate a response including the globally unique IDs corresponding to the intent, where the response forms part of the flow trace. The device may associate the response with the intent, and encode the response for downstream data forwarding. The device may further add multi-layer proof-of-transit (POT) information to the response that may be used to securely verify the path indicated in the SmartFlow flow trace.

Packet-optical in-band telemetry (POINT) flow tracing and proof-of-transit

Systems, methods, and devices for determining a property of, or isolating a fault in, a transport segment. A packet portion test packet can be transmitted over a packet portion of a transport segment. Packet portion results can be received in response to the packet portion test packet. A transport portion test packet can be transmitted over a transport portion of the transport segment. Transport portion results can be received in response to the transport portion test packet. The packet portion results and the transport portion results can be correlated to generate correlated test results. The correlated test results can be processed to determine the property of, or isolate the fault in, the transport segment.

Transport segment OAM routing mechanisms

A method and system for packet-optical in-band telemetry (POINT) that may be used in a packet-optical network is disclosed herein. An intermediate POINT device may receive a packet including at least a header and a payload at a packet layer. The POINT device may read intent information from the header, and the intent information may indicate a type of telemetry data to be collected. The POINT device may translate the intent information from the packet layer to generate a device-specific action in an optical layer to the type of telemetry data indicated by the intent. The POINT device may execute the device-specific action in the optical layer to generate a response corresponding to the intent, associate the response with the intent, and encode the response in the packet layer for downstream data forwarding.

Packet-optical in-band telemetry (POINT) framework

Systems, methods, and devices for managing latency in a network with a plurality of switches, each switch having client side ports and line side ports. A required bandwidth for each link between connected pairs of the plurality of switches is received. A client-side capacity value for each switch is received. An initial undersubscription factor is calculated based on the required bandwidths and the client-side capacity values. A desired undersubscription factor is calculated for each switch based on the initial undersubscription factor and the client side capacity values. A desired bandwidth is calculated for each link between connected pairs of the plurality of switches based on the required bandwidths and the desired undersubscription factors.

Managing latencies in data center interconnect switches using spare line side bandwidth and multiple paths inside the data center

Systems and methods for verifiable, private and secure omic analysis are provided. Secure multiparty computation techniques can be utilized to enable two parties to perform an omic transaction, such as determining genetic compatibility with one another, by jointly computing a result without either party disclosing their genetic information to the other. Privacy-preserving techniques to ensure authenticity of each party's omic data and metadata are also provided. Personalized matching scores can be computed, in which each party's score is weighted to reflect user preferences associated with the matching analysis.

Systems and methods for verifiable, private, and secure omic analysis

A packet optical network may include a packet optical gateway node that is configured to advertise a segment label to other nodes in the network where the segment label is used by a source node in place of a conventional segment routing label when the source node generates the list of labels included in the header of a data packet while establishing a path through a network. The segment label differs from a conventional segment routing label in that the segment label indicates the L0/L1 device or path as opposed to the L2/L3 device indicated by a conventional segment routing label.

Systems, apparatus, and methods for segment routing of optical signals

Systems and methods for adaptive and automated traffic engineering of data transport services may include learning the demand between devices and data paths based on application workloads, prediction of traffic demand and paths based on the workload history, provisioning and management of data paths (i.e. network links) based on the predicted demand, and real-time monitoring and data flow adaptation. Systems and methods for adaptive and automated traffic engineering of data transport services may also include learning the variation of traffic (data flow in the network) on various links (data paths) of the network topology using historical data (e.g. a minute, an hour, a day, or a week of data), predicting the data flow pattern for a time interval, and provisioning the services to steer data to meet the application requirements and other network wide goals (e.g., load balancing).

System and method for adaptive traffic engineering based on predicted traffic demand

Systems and methods for automatically managing the bandwidth requirements of application workloads may include learning the bandwidth requirements using historical data, predicting the required bandwidth for a time interval and provisions the services to deliver the appropriate bandwidth to the applications. Systems and methods for automatically managing the bandwidth requirements of application workloads may also include monitoring for the actual bandwidth requirements of the applications and adapt dynamically to changing requirements.

System and method for automatic bandwidth management

Systems and methods for discovery of a controller in an OpenFlow network may include using an OpenFlow capable switch to discover the controller without the help of other components, such as DHCP. The link discovery protocol may be configured on the switch and the discovery process may use an out-of-band or an in-band communication. In one example, a link discovery protocol packet is sent out of all ports of a switch that meet the eligibility criteria. The response is guaranteed because of a TTL like mechanism in the packet. Each port on a switch that receives this link discovery protocol packet takes an action depending on its current state.

Systems and methods for discovery of a controller in openflow networks

A link state information correction scheme is implemented by the present disclosure. In one embodiment, the correction scheme is implemented by a reload logic module that cooperates with link state protocol logic configured on a reload routing element (or routing element that has reloaded or hard restarted). The reload logic module is configured to receive a database descriptor message at a reload routing element, where the database descriptor message is received from a neighbor routing element during an adjacency formation. The reload logic module is also configured to determine whether the database descriptor message identifies a stale version of a link state advertisement (LSA), where the LSA is self-originated by the reload routing element. The reload logic module is also configured to generate a new version of the LSA during the adjacency formation.

Technique to minimize traffic loss on a router reload/restart

An example method is provided in accordance with one embodiment and includes identifying distances for a sub-tree of a leaf node of a plurality of leaf nodes in a network. The method can also include applying the distances for the sub-tree of the leaf node to a plurality of root nodes connected to the leaf node. Additionally, the method can include establishing a plurality of shortest path distances for the plurality of root nodes using the distances for the sub-tree.

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Fremont, CA, United States of America

Madhukar Anand