Patents by Inventor Ananda Sathyanarayana
Ananda Sathyanarayana 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: 11916796Abstract: End-to-end data packet flow control is described for an overlay environment of a wide area network. A method includes detecting an active session of a specific application with a source node and a destination node within an overlay environment, detecting a traffic flow from the source node to the destination node associated with the active session, mapping the traffic flow to a dedicated service processing thread of a network services appliance, mapping an identifier to the dedicated service processing thread, and forwarding the traffic flow to the destination node through the dedicated service processing thread by applying the identifier to the traffic flow.Type: GrantFiled: December 23, 2021Date of Patent: February 27, 2024Assignee: Versa Networks, Inc.Inventors: Jayakrishnan Iyer, Chetan Bali, Vignesh Chinnakkannu, Ananda Sathyanarayana, Apurva Mehta
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Publication number: 20230208769Abstract: End-to-end data packet flow control is described for an overlay environment of a wide area network. A method includes detecting an active session of a specific application with a source node and a destination node within an overlay environment, detecting a traffic flow from the source node to the destination node associated with the active session, mapping the traffic flow to a dedicated service processing thread of a network services appliance, mapping an identifier to the dedicated service processing thread, and forwarding the traffic flow to the destination node through the dedicated service processing thread by applying the identifier to the traffic flow.Type: ApplicationFiled: December 23, 2021Publication date: June 29, 2023Applicant: Versa Networks, Inc.Inventors: Jayakrishnan Iyer, Chetan Bali, Vignesh Chinnakkannu, Ananda Sathyanarayana, Apurva Mehta
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Patent number: 9813345Abstract: In general, techniques are described for offloading data transfer statistics from a mobile access gateway. The mobile access gateway comprises a forwarding unit. The forwarding unit comprises a packet forwarding engine (PFE). When the PFE receives a packet, the PFE updates a data transfer statistic based on a quantity of data in the packet. The data transfer statistic is initially stored in a memory of the PFE. The PFE is configured to push the data transfer statistic from the memory of the PFE to a memory of the forwarding unit.Type: GrantFiled: February 1, 2016Date of Patent: November 7, 2017Assignee: Juniper Networks, Inc.Inventors: Gopi Krishna, Jagadish Grandhi, Dinesh Bakiaraj, Sandesh Kumar Sodhi, Ananda Sathyanarayana
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Patent number: 9251535Abstract: In general, techniques are described for offloading data transfer statistics from a mobile access gateway. The mobile access gateway comprises a forwarding unit. The forwarding unit comprises a packet forwarding engine (PFE). When the PFE receives a packet, the PFE updates a data transfer statistic based on a quantity of data in the packet. The data transfer statistic is initially stored in a memory of the PFE. The PFE is configured to push the data transfer statistic from the memory of the PFE to a memory of the forwarding unit.Type: GrantFiled: January 5, 2012Date of Patent: February 2, 2016Assignee: Juniper Networks, Inc.Inventors: Gopi Krishna, Jagadish Grandhi, Dinesh Bakiaraj, Sandesh Kumar Sodhi, Ananda Sathyanarayana
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Patent number: 9036476Abstract: In general, techniques are described for maintaining load balancing after service application. A network device comprising ingress and egress forwarding components and a service card may implement the techniques. An ingress forwarding component receives a packet and, in response to a determination that the service is to be applied to the packet, updates the packet to include an ingress identifier that identifies the ingress forwarding component, thereafter transmitting the updated packet to the service card. The service card applies the service to the updated packet to generate a serviced packet and transmits the serviced packet to the ingress forwarding component identified by the ingress identifier so as to maintain load balancing of packet flows across the plurality of forwarding components. The ingress forwarding component determines a next hop to which to forward the serviced packet and the egress forwarding component forwards the serviced packet to the determined next hop.Type: GrantFiled: September 28, 2012Date of Patent: May 19, 2015Assignee: Juniper Networks, Inc.Inventors: Jagadish Grandhi, Gopi Krishna, Ananda Sathyanarayana, Arun Balasubramanian, Bobby Vandalore
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Patent number: 8953592Abstract: In general, techniques are described for informing services nodes of private network address information in order to apply subscriber-aware services with the services node. In some examples, a services node includes an Authentication, Authorization, and Accounting (AAA) interface to receive a AAA message, wherein the AAA message has been extended from a AAA protocol to specify a private network address of a subscriber device authenticated to an access network by the AAA server and assigned the private network address that is not routable external to the access network. A mapping module associates the public network address of subscriber data traffic with the private network address received by the AAA message. One or more service modules select one or more of a plurality of subscriber policies using the associated private network address and apply services to the subscriber data traffic in accordance with the selected subscriber policies.Type: GrantFiled: September 28, 2012Date of Patent: February 10, 2015Assignee: Juniper Networks, Inc.Inventors: Gopi Krishna, Apurva Mehta, Ananda Sathyanarayana, Bobby Vandalore, Dinesh Bakiaraj, Vignesh Chinnakkannu
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Patent number: 8949413Abstract: In general, techniques are described for selectively applying and reusing filters stored in a router. In one example, a method includes receiving a network access request from a first user. The method also includes selecting a candidate rule group associated with the packet flow, wherein the candidate rule group comprises one or more currently deployed rules of an existing rule group on the computing device that are currently installed within a forwarding plane and are being applied by the forwarding plane to network traffic associated with a second user. The method also includes installing a new rule group comprising the one or more currently deployed rules of the existing rule group and one or more new rules associated with the first user and not currently installed within a forwarding plane. The method also includes applying each rule of the new rule group to network traffic associated with the first user.Type: GrantFiled: June 30, 2011Date of Patent: February 3, 2015Assignee: Juniper Networks, Inc.Inventors: Balamurugan Ramaraj, Gopi Krishna, Ananda Sathyanarayana, Apurva Mehta, Krishna Sankaran, Murtuza Attarwala
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Publication number: 20140092738Abstract: In general, techniques are described for maintaining load balancing after service application. A network device comprising ingress and egress forwarding components and a service card may implement the techniques. An ingress forwarding component receives a packet and, in response to a determination that the service is to be applied to the packet, updates the packet to include an ingress identifier that identifies the ingress forwarding component, thereafter transmitting the updated packet to the service card. The service card applies the service to the updated packet to generate a serviced packet and transmits the serviced packet to the ingress forwarding component identified by the ingress identifier so as to maintain load balancing of packet flows across the plurality of forwarding components. The ingress forwarding component determines a next hop to which to forward the serviced packet and the egress forwarding component forwards the serviced packet to the determined next hop.Type: ApplicationFiled: September 28, 2012Publication date: April 3, 2014Applicant: JUNIPER NETWORKS, INC.Inventors: Jagadish Grandhi, Gopi Krishna, Ananda Sathyanarayana, Arun Balasubramanian, Bobby Vandalore
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Publication number: 20140092899Abstract: In general, techniques are described for informing services nodes of private network address information in order to apply subscriber-aware services with the services node. In some examples, a services node includes an Authentication, Authorization, and Accounting (AAA) interface to receive a AAA message, wherein the AAA message has been extended from a AAA protocol to specify a private network address of a subscriber device authenticated to an access network by the AAA server and assigned the private network address that is not routable external to the access network. A mapping module associates the public network address of subscriber data traffic with the private network address received by the AAA message. One or more service modules select one or more of a plurality of subscriber policies using the associated private network address and apply services to the subscriber data traffic in accordance with the selected subscriber policies.Type: ApplicationFiled: September 28, 2012Publication date: April 3, 2014Applicant: JUNIPER NETWORKS, INC.Inventors: Gopi Krishna, Apurva Mehta, Ananda Sathyanarayana, Bobby Vandalore, Dinesh Bakiaraj, Vignesh Chinnakkannu
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Patent number: 8576841Abstract: In general, techniques are described for encoding port ranges. In one example, a method includes generating an encoded value that represents a specified port range including a first element storing an identifier that identifies a frequently occurring port range stored in an associative data structure of most frequently occurring port ranges, a second element storing an index that represents a dynamically-learned port range specifying at least a part of the specified port range, the dynamically-learned port range represented in a tree-structure of dynamically-learned port ranges and identified by the index, and applying, by a forwarding plane of the computing device, one or more filters associated with the encoded value to a packet that specifies a port included in the specified port range.Type: GrantFiled: June 30, 2011Date of Patent: November 5, 2013Assignee: Juniper Networks, Inc.Inventors: Balamurugan Ramaraj, Gopi Krishna, Ananda Sathyanarayana, Apurva Mehta, Murtuza Attarwala
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Publication number: 20130007257Abstract: In general, techniques are described for selectively applying and reusing filters stored in a router. In one example, a method includes receiving a network access request from a first user. The method also includes selecting a candidate rule group associated with the packet flow, wherein the candidate rule group comprises one or more currently deployed rules of an existing rule group on the computing device that are currently installed within a forwarding plane and are being applied by the forwarding plane to network traffic associated with a second user. The method also includes installing a new rule group comprising the one or more currently deployed rules of the existing rule group and one or more new rules associated with the first user and not currently installed within a forwarding plane. The method also includes applying each rule of the new rule group to network traffic associated with the first user.Type: ApplicationFiled: June 30, 2011Publication date: January 3, 2013Applicant: JUNIPER NETWORKS, INC.Inventors: Balamurugan Ramaraj, Gopi Krishna, Ananda Sathyanarayana, Apurva Mehta, Krishna Sankaran, Murtuza Attarwala
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Publication number: 20130003727Abstract: In general, techniques are described for encoding port ranges. In one example, a method includes generating an encoded value that represents a specified port range including a first element storing an identifier that identifies a frequently occurring port range stored in an associative data structure of most frequently occurring port ranges, a second element storing an index that represents a dynamically-learned port range specifying at least a part of the specified port range, the dynamically-learned port range represented in a tree-structure of dynamically-learned port ranges and identified by the index, and applying, by a forwarding plane of the computing device, one or more filters associated with the encoded value to a packet that specifies a port included in the specified port range.Type: ApplicationFiled: June 30, 2011Publication date: January 3, 2013Applicant: JUNIPER NETWORKS, INC.Inventors: Balamurugan Ramaraj, Gopi Krishna, Ananda Sathyanarayana, Apurva Mehta, Murtuza Attarwala
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Patent number: 8199753Abstract: Methods, apparatus, and products are disclosed for forwarding frames in a computer network using shortest path bridging (‘SPB’). The network includes multiple bridges, and each edge bridge is assigned a unique service virtual local area network (‘VLAN’) identifier. One of the bridges receives a frame for transmission to a destination node. The received frame includes a service VLAN identifier for the ingress bridge through which the frame entered the network and a customer VLAN identifier. The one bridge identifies an SPB forwarding tree in dependence upon the service VLAN identifier. The SPB forwarding tree specifies a shortest route in the network from the ingress bridge through the one bridge to the other bridges in the network. The one bridge then forwards the received frame to the egress bridge without MAC-in-MAC encapsulation in dependence upon the SPB forwarding tree and the customer VLAN identifier.Type: GrantFiled: June 5, 2009Date of Patent: June 12, 2012Assignee: Juniper Networks, Inc.Inventors: Apurva Mehta, Kumar Mehta, Krishna Sankaran, Rajagopalan Subbiah, Ramanarayanan Ramakrishnan, Bin William Hong, Ananda Sathyanarayana
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Publication number: 20100309912Abstract: Methods, apparatus, and products are disclosed for forwarding frames in a computer network using shortest path bridging (‘SPB’). The network includes multiple bridges, and each edge bridge is assigned a unique service virtual local area network (‘VLAN’) identifier. One of the bridges receives a frame for transmission to a destination node. The received frame includes a service VLAN identifier for the ingress bridge through which the frame entered the network and a customer VLAN identifier. The one bridge identifies an SPB forwarding tree in dependence upon the service VLAN identifier. The SPB forwarding tree specifies a shortest route in the network from the ingress bridge through the one bridge to the other bridges in the network. The one bridge then forwards the received frame to the egress bridge without MAC-in-MAC encapsulation in dependence upon the SPB forwarding tree and the customer VLAN identifier.Type: ApplicationFiled: June 5, 2009Publication date: December 9, 2010Applicant: Juniper Networks, Inc.Inventors: Apurva Mehta, Kumar Mehta, Krishna Sankaran, Rajagopalan Subbiah, Ramanarayanan Ramakrishnan, Bin William Hong, Ananda Sathyanarayana