Patents by Inventor Snigdho C. Bardalai
Snigdho C. Bardalai has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 10425252Abstract: Systems and methods are disclosed including a method comprising: receiving, with a controller having a computer processor, a preservation status input from a user indicative of whether or not to preserve a virtual local area network (VLAN) tag in a header of a data packet transmitted within an Ethernet local area network (E-LAN), the VLAN tag identifying at least one of customer information and service provider information for the data packet in the E-LAN, wherein the E-LAN comprises network devices having physical ports and is configured to allow multiple customers use of an individual physical port; determining a scalable network-wide service configuration model having multiple predetermined rules for automatically configuring the physical ports of the network devices for the E-LAN based on the preservation status input from the user; and configuring automatically, with the controller, the physical ports of the network devices using the predetermined rules of the configuration model.Type: GrantFiled: April 8, 2016Date of Patent: September 24, 2019Assignee: Infinera Corp.Inventors: Iftekhar Hussain, Snigdho C. Bardalai, Krish Verma, Murugan Rajagopal
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Patent number: 10320510Abstract: 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.Type: GrantFiled: March 29, 2011Date of Patent: June 11, 2019Assignee: Infinera CorporationInventors: Snigdho C. Bardalai, Rajan Rao, Ashok Kunjidhapatham, Khuzema Pithewan, Biao Lu, Ping Pan, Radhakrishna Valiveti
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Patent number: 9705822Abstract: A network device includes shelf controllers and interface unit controllers. An interface unit controller, of the interface unit controllers, is configured to receive a message from a different network device; determine whether a session exists for the message; identify a shelf controller, of the shelf controllers, based on the session when the session exists for the message; select the shelf controller, to receive the message, based on a load or mapping of the shelf controller when the session does not exist for the message; and transmit the message to the shelf controller. The shelf controller is configured to program a connection via a data plane of the network device.Type: GrantFiled: June 28, 2011Date of Patent: July 11, 2017Assignee: Infinera CorporationInventor: Snigdho C. Bardalai
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Publication number: 20160301630Abstract: Systems and methods are disclosed including a method comprising: receiving, with a controller having a computer processor, a preservation status input from a user indicative of whether or not to preserve a virtual local area network (VLAN) tag in a header of a data packet transmitted within an Ethernet local area network (E-LAN), the VLAN tag identifying at least one of customer information and service provider information for the data packet in the E-LAN, wherein the E-LAN comprises network devices having physical ports and is configured to allow multiple customers use of an individual physical port; determining a scalable network-wide service configuration model having multiple predetermined rules for automatically configuring the physical ports of the network devices for the E-LAN based on the preservation status input from the user; and configuring automatically, with the controller, the physical ports of the network devices using the predetermined rules of the configuration model.Type: ApplicationFiled: April 8, 2016Publication date: October 13, 2016Inventors: Iftekhar Hussain, Snigdho C. Bardalai, Krish Verma, Murugan Rajagopal
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Patent number: 9246625Abstract: In particular embodiments, providing wavelength connectivity information to a network includes establishing wavelength connectivity information for a network node of the network. The network node comprises link pairs, where a link pair has an input link and an output link. The wavelength connectivity information describes a set of available wavelengths between an input link and an output link. The wavelength connectivity information is inserted into an advertisement, and the advertisement is sent to at least a subset of the network nodes of the network in real time.Type: GrantFiled: April 25, 2008Date of Patent: January 26, 2016Assignee: Fujitsu LimitedInventors: Snigdho C. Bardalai, Abinder S. Dhillon
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Patent number: 8989181Abstract: A method for multicasting data packets is provided. The method includes preparing multiple point to point connections between a root node and multiple destination nodes to establish point to multipoint connections. The method also includes receiving, at an intermediate node which is operatively connected to the root node and a plurality of the destination nodes, a data packet from the root node. In addition, the method includes determining whether the received data packet is a multicast data packet and generating a plurality of the data packets by copying the received data packet if the received data packet is a multicast data packet. Furthermore, the method includes forwarding the copied data packets to a plurality of the destination nodes.Type: GrantFiled: October 30, 2007Date of Patent: March 24, 2015Assignee: Fujitsu LimitedInventors: Shantnu Sharma, Snigdho C. Bardalai, Edward Alton Harbin
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Patent number: 8880699Abstract: Providing a service includes establishing service parameter values for a service, where a service parameter value describes a metric of the service. The service parameter values are mapped to first network parameter values operable to configure a first wide area network port for a first transport mechanism. The service is provided over the first transport mechanism. The service parameter values are mapped to second network parameter values operable to configure a second wide area network port for a second transport mechanism. The service is provided over the second transport mechanism.Type: GrantFiled: October 20, 2005Date of Patent: November 4, 2014Assignee: Fujitsu LimitedInventors: David M. Colven, Li-Chang J. Lin, Snigdho C. Bardalai, Abed M. Jaber
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Patent number: 8446841Abstract: In particular embodiments, a network element filters information sent to a neighboring network element. In the embodiments, the core network element may determine whether the neighboring network element is an edge network element or a core network element. If the neighboring network element is an edge network element, the core network element may set a filter, remove traffic engineering information according to the filter, and send the remaining information to the neighboring network element.Type: GrantFiled: November 24, 2008Date of Patent: May 21, 2013Assignee: Fujitsu LimitedInventors: Abinder S. Dhillon, Michael D. White, Fredrick S. Gruman, Sanjay Gera, Snigdho C. Bardalai
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Publication number: 20130003753Abstract: A network device includes shelf controllers and interface unit controllers. An interface unit controller, of the interface unit controllers, is configured to receive a message from a different network device; determine whether a session exists for the message; identify a shelf controller, of the shelf controllers, based on the session when the session exists for the message; select the shelf controller, to receive the message, based on a load or mapping of the shelf controller when the session does not exist for the message; and transmit the message to the shelf controller. The shelf controller is configured to program a connection via a data plane of the network device.Type: ApplicationFiled: June 28, 2011Publication date: January 3, 2013Applicant: INFINERA CORPORATIONInventor: Snigdho C. BARDALAI
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Patent number: 8180219Abstract: In particular embodiments, providing signal reachability information to a network includes establishing signal reachability information at a network node of the network. The signal reachability information describes attributes that affect reachability of an optical signal. The signal reachability information is inserted into an advertisement, and the advertisement is sent to network nodes of the network.Type: GrantFiled: April 25, 2008Date of Patent: May 15, 2012Assignee: Fujitsu LimitedInventors: Snigdho C. Bardalai, Abinder S. Dhillon, Sanjay Gera, Taichi Ueki, Hideaki Sugiya, Vibha Sarin
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Publication number: 20120082455Abstract: 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.Type: ApplicationFiled: March 29, 2011Publication date: April 5, 2012Inventors: Snigdho C. Bardalai, Rajan Rao, Ashok Kunjidhapatham, Khuzema Pithewan, Biao Lu, Ping Pan, Radhakrishna Valiveti
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Patent number: 8041218Abstract: In particular embodiments, setting up a circuit in a network includes establishing by control plane logic that planning pre-conditions for planning a circuit have been satisfied, and initiating the planning of the circuit. The control plane logic establishes that reservation pre-conditions for reservation of a resources for the circuit have been satisfied and initiates the reservation of the resources for the circuit. The control plane logic establishes that activation pre-conditions for activation of the circuit have been satisfied and initiates the activation of the circuit.Type: GrantFiled: April 25, 2008Date of Patent: October 18, 2011Assignee: Fujitsu LimitedInventors: Snigdho C. Bardalai, Sanjay Gera, Richard L. Colter, Fredrick S. Gruman, Michael D. White
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Patent number: 7907549Abstract: Modeling a ring network of a network system includes creating a ring object that models the ring network. The network system includes a network element that has components. The ring object includes provisioning properties, where a provisioning property describes configuring a component to become a member of the ring network. A component is associated with the ring object to allow the component to become a member of the ring network, where the associated component is allowed to receive packets communicated by the ring network. The ring object is stored at memory of the network element.Type: GrantFiled: July 14, 2005Date of Patent: March 15, 2011Assignee: Fujitsu LimitedInventors: David M. Colven, Li-Chang J. Lin, Snigdho C. Bardalai, Abed M. Jaber
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Patent number: 7856018Abstract: Establishing a point-to-multipoint path includes establishing a first label switched path from a source to a first destination, where the first label switched path is represented by a first label set comprising first node-label pairs. A second label switched path is established from the source to a second destination, where the second label switched path is represented by a second label set comprising second node-label pairs. One or more of the second node-label pairs are equivalent to one or more of the first node-label pairs. The first label set and the second label set are combined to establish the point-to-multicast path.Type: GrantFiled: May 12, 2008Date of Patent: December 21, 2010Assignee: Fujitsu LimitedInventors: Krishna M. Ayanampudi, Snigdho C. Bardalai
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Publication number: 20100104281Abstract: According to one embodiment, regeneration information indicating the optical reachability of a set of regeneration nodes is managed. Candidate paths from a source node to a destination node are calculated according to the regeneration information. The destination node is optically reachable from the source node along a candidate path. At least one candidate path is selected from the candidate paths.Type: ApplicationFiled: October 29, 2008Publication date: April 29, 2010Inventors: Abinder S. Dhillon, Snigdho C. Bardalai, Sanjay Gera, Fredrick S. Gruman, Vibha Sarin
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Patent number: 7706306Abstract: Generating a path inventory for a communication network includes sending a path message through a sequence of nodes of the communication network. The sequence of nodes comprises an initiating node, a set of intermediate nodes, and a terminating node. The path message is sent from the initiating node, through the set of intermediate nodes, to the terminating node. The path message sent from the initiating node may not have a specified destination address. The following is repeated for each node of the set of intermediate nodes: establishing a next node subsequent to the each node, and gathering path information about the next node in the path message. The path message is received at the terminating node, and the path information is recorded in a return message.Type: GrantFiled: March 31, 2006Date of Patent: April 27, 2010Assignee: Fujitsu LimitedInventors: Snigdho C. Bardalai, Richard J. Dunsmore
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Publication number: 20100054153Abstract: In particular embodiments, a network element filters information sent to a neighboring network element. In the embodiments, the core network element may determine whether the neighboring network element is an edge network element or a core network element. If the neighboring network element is an edge network element, the core network element may set a filter, remove traffic engineering information according to the filter, and send the remaining information to the neighboring network element.Type: ApplicationFiled: November 24, 2008Publication date: March 4, 2010Applicant: Fujitsu Network Communications, Inc.Inventors: Michael D. White, Fredrick S. Gruman, Sanjay Gera, Snigdho C. Bardalai, Abinder S. Dhillon
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Publication number: 20090279544Abstract: Establishing a point-to-multipoint path includes establishing a first label switched path from a source to a first destination, where the first label switched path is represented by a first label set comprising first node-label pairs. A second label switched path is established from the source to a second destination, where the second label switched path is represented by a second label set comprising second node-label pairs. One or more of the second node-label pairs are equivalent to one or more of the first node-label pairs. The first label set and the second label set are combined to establish the point-to-multicast path.Type: ApplicationFiled: May 12, 2008Publication date: November 12, 2009Applicant: Fujitsu Network Communications, Inc.Inventors: Krishna M. Ayanampudi, Snigdho C. Bardalai
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Publication number: 20090269065Abstract: In particular embodiments, setting up a circuit in a network includes establishing by control plane logic that planning pre-conditions for planning a circuit have been satisfied, and initiating the planning of the circuit. The control plane logic establishes that reservation pre-conditions for reservation of a resources for the circuit have been satisfied and initiates the reservation of the resources for the circuit. The control plane logic establishes that activation pre-conditions for activation of the circuit have been satisfied and initiates the activation of the circuit.Type: ApplicationFiled: April 25, 2008Publication date: October 29, 2009Applicant: Fujitsu LimitedInventors: Snigdho C. Bardalai, Sanjay Gera, Richard L. Colter, Fredrick S. Gruman, Michael D. White
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Publication number: 20090269060Abstract: In particular embodiments, providing wavelength connectivity information to a network includes establishing wavelength connectivity information for a network node of the network. The network node comprises link pairs, where a link pair has an input link and an output link. The wavelength connectivity information describes a set of available wavelengths between an input link and an output link. The wavelength connectivity information is inserted into an advertisement, and the advertisement is sent to at least a subset of the network nodes of the network in real time.Type: ApplicationFiled: April 25, 2008Publication date: October 29, 2009Applicant: Fujitsu LimitedInventors: Snigdho C. Bardalai, Abinder S. Dhillon