Infinera Corporation

Brixham Solutions Ltd.

K.mizra LLC

Ciena Corporation

Global Innovation Aggregators, Llc.

Ping Pan

Richard Dennis Gitlin

Rajan Rao

Biao Lu

Radhakrishna Valiveti

Sri Mohana Satya Srinivas Singamsetty

Khuzema Pithewan

Satyajeet Singh Ahuja

Sharfuddin Syed

Jan Bialkowski

Abhinava Shivakumar Sadasivarao

Ann Gui

Anthony Jorgenson

Maneesh Jain

Ralph Hofmeister

Chris Liou

Edward Everett Sprague

Snigdho Chandra Bardalai

Ashok Kunjidhapatham

Paul Nathan Freeman

Iftekhar Hussain

Ravi Tangirala

Christopher Liou

Hon Tat Ho

Bhavesh Nisar

Michael Frendo

Qin Wan

Raghu Arja

A method includes, at a node associated with a multiprotocol label switching system (MPLS) network, identifying information associated with an application flow based on one or more unencapsulated packet headers of the application flow or based on an ingress data stream that includes the application flow. The method further includes, in response to identifying the information, and based on stored data that maps application flows with psuedowires, determining a number of pseudowires corresponding to paths through the MPLS network, where the stored data indicates, for a sending device application, a distributed mapping of the application flow via at least one of the number of psuedowires, and communicating data related to the sending device application via at least one of the number of pseudowires.

Application wire

A method includes, at a node associated with a multiprotocol label switching system (MPLS) network, identifying information associated with an application flow based on one or more unencapsulated packet headers of the application flow or based on an ingress data stream that includes the application flow. The method further includes, in response to identifying the information, and based on stored data that maps application flows with pseudowires, determining a number of pseudowires corresponding to paths through the MPLS network, where the stored data indicates, for a sending device application, a distributed mapping of the application flow via at least one of the number of pseudowires, and communicating data related to the sending device application via at least one of the number of pseudowires.

A method, comprises measuring, by circuitry of a computer system, a first bandwidth of data traffic of a transport path over a time period, the transport path passing through a plurality of nodes and conforming to a protocol using a number of time slots to allocate a second bandwidth to the transport path. The method further includes passing a signal, from the computer system to at least one of the nodes of the transport path, the signal including at least one instruction that when executed by circuitry of the at least one node causes a change to the number of time slots allocated to the transport path.

Method to re-provision bandwidth in P-OTN network based on current traffic demand

Data is transferred from a plurality of ingress application flows over an MPLS network. Application flow control information is identified from the unencapsulated headers of the ingress data streams and a flow parameter is appended to the header stack. Application outbound load balancing identifies multiple equal cost network bound paths and utilizes application flow parameters to distribute data streams over a plurality of pseudowires without exceeding predetermined thresholds.

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

A method and node are disclosed. In the method, circuitry of a first node generates a link state advertising message including bandwidth information indicative of unreserved number of optical channel data unit containers for a plurality of different types of signals supported by an interface of the first node. The link state advertising message is transmitted from the first node to a plurality of second nodes within a mesh network.

TE-link bandwidth model of ODU switch capable OTN interfaces

Transferring data over a network includes identifying an application flow and mapping the application flow to a network bound connection.

A switch node provided with a switch, an input interface and an output interface. The input interface is adapted to couple to a first communication link to receive a first TDM frame having a user payload field containing a first user data from the first communication link, and a frame overhead field containing a first identification. The input interface is configured to validate the first identification in the frame overhead field and reject the first TDM frame responsive to the first identification being invalid, and to forward the first user data to the switch responsive to the first identification being valid. The output interface is adapted to couple to a second communication link. The output interface is configured to receive the first user data from the switch, and to generate a second TDM frame having a second user payload field containing the first user data, and a second frame overhead field containing a second identification that is different from the first identification. The output interface is also configured to transmit the second TDM frame onto the second communication link.

Misconnection avoidance on networks

A method for detecting the liveliness and synchronizing the control-plane and data-plane on protecting connections in a shared mesh network environment through methods for probing the protecting connection conditions by sending in-band messages; and synchronization of control plane and data plane by using LSP-ping messages on the protecting connections.

Supporting OAM on protecting connections in shared mesh protection environment

Providing protection to network traffic includes sending a Pseudowire protection configuration parameter for configuring a standby Pseudowire between a source node and a destination node, receiving a Pseudowire configuration acknowledgement indicating whether the Pseudowire protection configuration parameter has been accepted by the destination node, and in the event that the Pseudowire protection configuration parameter has been accepted by the destination node, using the standby Pseudowire, wherein the standby Pseudowire's configured based at least in part on the Pseudowire protection configuration parameter.

Pseudowire protection using a standby pseudowire

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

Data is transferred. A data packet associated with an application flow is received. A Pseudowire label is determined based at least in part on an application header associated with the data packet. The data packet is encapsulated with the Pseudowire label. The data packet is transferred over a Pseudowire using the Pseudowire label.

Global IP-based service-oriented network architecture

Communicating is disclosed. A first communication associated with a first mechanism for configuring a pseudo-wire is received. The first communication is transformed into a second communication, where the second communication is associated with a second mechanism for configuring a pseudo-wire. The second communication is transmitted, where a pseudo-wire that is configured using the second communication is associated with (1) a first node that is configured to support the first mechanism and (2) a second node that is configured to support the second mechanism.

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San Jose, CA, United States of America

Ping Pan