Patents by Inventor Rohit Suri
Rohit Suri 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: 10171260Abstract: Techniques are provided to manage how router advertisement messages are forwarded for ultimate wireless transmission in a wireless network. In one embodiment, a multicast router advertisement message intended for a virtual local area network is converted into individual unicast router advertisement messages directed to specific wireless mobile client devices that are part of that virtual local area network. In another embodiment, router advertisement messages are routed between controllers according to the current location of a wireless mobile client device. In still other embodiments, techniques are provided to minimize the volume of the router advertisement messages sent over a wireless network, and to proactively send a unicast router advertisement message to a mobile client device that has performed a handoff, without waiting for a router solicitation message.Type: GrantFiled: June 6, 2016Date of Patent: January 1, 2019Assignee: Cisco Technology, Inc.Inventors: Srinath Gundavelli, Abhijit Choudhury, Rohit Suri, Venkatesh Kanagasabapathy, Bhavannarayana Nelakanti, Sudhir Jain
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Patent number: 9509567Abstract: In one implementation, a wireless network device is automatically accessed and configured through a mobile device. The mobile device receives provisioning data encoded for installation and operation of a network device and decodes the provisioning data to identify at least one access parameter for the network device. The mobile device accesses a wireless network of the network device according to the access parameter. Once access has been established, the mobile device transmits a configuration signal including a network configuration setting through the wireless network to the network device for the installation of the network device. The network device is provisioned based on the network configuration setting.Type: GrantFiled: September 30, 2015Date of Patent: November 29, 2016Assignee: Cisco Technology, Inc.Inventors: Nitya Sundareswaran, Rohit Suri, Keerti Lakshminarayan, Lizhen Lin, Mei Tong, Manjunathaharsha Nagaraju
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Patent number: 9480100Abstract: A controller controls access points (APs) in a network of APs. The controller causes the first AP to establish an Internet Protocol (IP) tunnel with a router connected with a wired network and over which data packets are routed between the wired network and a client device wirelessly connected to the first AP. The controller receives a roam indication that the client device is wirelessly connected with a second AP. In response to the indication, the controller instructs the first AP to maintain the IP tunnel with the router and instructs the second AP to establish an inter-AP tunnel with the first AP in order to route traffic between the wired network and the client device over both the IP tunnel and the inter-AP tunnel.Type: GrantFiled: January 15, 2014Date of Patent: October 25, 2016Assignee: Cisco Technology, Inc.Inventors: Rajesh Pazhyannur, Rohit Suri
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Publication number: 20160285642Abstract: Techniques are provided to manage how router advertisement messages are forwarded for ultimate wireless transmission in a wireless network. In one embodiment, a multicast router advertisement message intended for a virtual local area network is converted into individual unicast router advertisement messages directed to specific wireless mobile client devices that are part of that virtual local area network. In another embodiment, router advertisement messages are routed between controllers according to the current location of a wireless mobile client device. In still other embodiments, techniques are provided to minimize the volume of the router advertisement messages sent over a wireless network, and to proactively send a unicast router advertisement message to a mobile client device that has performed a handoff, without waiting for a router solicitation message.Type: ApplicationFiled: June 6, 2016Publication date: September 29, 2016Inventors: Srinath Gundavelli, Abhijit Choudhury, Rohit Suri, Venkatesh Kanagasabapathy, Bhavannarayana Nelakanti, Sudhir Jain
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Patent number: 9445418Abstract: In one embodiment, a transmitting node may be configured to transmit a wireless advertisement frame over a computer network, wherein the frame includes a source address of a reachable node being advertised, a destination address to which the reachable node is to be advertised, a transmitter address of the transmitting node, and a receiver address of a wireless access point to which the wireless advertisement frame is to be received. Also, the wireless access point may be configured to receive the wireless advertisement frame from the network, and in response, transmit a reflected wireless advertisement frame having the source address of the reachable node, the destination address to which the reachable node is to be advertised, a transmitter address of the access point, and a receiver address that indicates the reflected frame is to be accepted by any appropriate receiver excluding the transmitting node.Type: GrantFiled: September 15, 2015Date of Patent: September 13, 2016Assignee: CISCO TECHNOLOGY, INC.Inventors: Norman W. Finn, Robert O'Hara, Rohit Suri, Joshua Broch
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Patent number: 9397847Abstract: Techniques are provided to manage how router advertisement messages are forwarded for ultimate wireless transmission in a wireless network. In one embodiment, a multicast router advertisement message intended for a virtual local area network is converted into individual unicast router advertisement messages directed to specific wireless mobile client devices that are part of that virtual local area network. In another embodiment, router advertisement messages are routed between controllers according to the current location of a wireless mobile client device. In still other embodiments, techniques are provided to minimize the volume of the router advertisement messages sent over a wireless network, and to proactively send a unicast router advertisement message to a mobile client device that has performed a handoff, without waiting for a router solicitation message.Type: GrantFiled: February 4, 2014Date of Patent: July 19, 2016Assignee: Cisco Technology, Inc.Inventors: Srinath Gundavelli, Abhijit Choudhury, Rohit Suri, Venkatesh Kanagasabapathy, Bhavannarayana Nelakanti, Sudhir Jain
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Publication number: 20160020954Abstract: In one implementation, a wireless network device is automatically accessed and configured through a mobile device. The mobile device receives provisioning data encoded for installation and operation of a network device and decodes the provisioning data to identify at least one access parameter for the network device. The mobile device accesses a wireless network of the network device according to the access parameter. Once access has been established, the mobile device transmits a configuration signal including a network configuration setting through the wireless network to the network device for the installation of the network device. The network device is provisioned based on the network configuration setting.Type: ApplicationFiled: September 30, 2015Publication date: January 21, 2016Inventors: Nitya Sundareswaran, Rohit Suri, Keerti Lakshminarayan, Lizhen Lin, Mei Tong, Manjunathaharsha Nagaraju
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Publication number: 20160007349Abstract: In one embodiment, a transmitting node may be configured to transmit a wireless advertisement frame over a computer network, wherein the frame includes a source address of a reachable node being advertised, a destination address to which the reachable node is to be advertised, a transmitter address of the transmitting node, and a receiver address of a wireless access point to which the wireless advertisement frame is to be received. Also, the wireless access point may be configured to receive the wireless advertisement frame from the network, and in response, transmit a reflected wireless advertisement frame having the source address of the reachable node, the destination address to which the reachable node is to be advertised, a transmitter address of the access point, and a receiver address that indicates the reflected frame is to be accepted by any appropriate receiver excluding the transmitting node.Type: ApplicationFiled: September 15, 2015Publication date: January 7, 2016Inventors: Norman W. Finn, Robert O'Hara, Rohit Suri, Joshua Broch
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Patent number: 9173115Abstract: In one implementation, a wireless network device is automatically accessed and configured through a mobile device. The mobile device receives provisioning data encoded for installation and operation of a network device and decodes the provisioning data to identify at least one access parameter for the network device. The mobile device accesses a wireless network of the network device according to the access parameter. Once access has been established, the mobile device transmits a configuration signal including a network configuration setting through the wireless network to the network device for the installation of the network device. The network device is provisioned based on the network configuration setting.Type: GrantFiled: July 30, 2013Date of Patent: October 27, 2015Assignee: Cisco Technology, Inc.Inventors: Nitya Sundareswaran, Rohit Suri, Keerti Lakshminarayan, Lizhen Lin, Mei Tong, Manjunathaharsha Nagaraju
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Patent number: 9148299Abstract: In one embodiment, a transmitting node may be configured to transmit a wireless advertisement frame over a computer network, wherein the frame includes a source address of a reachable node being advertised, a destination address to which the reachable node is to be advertised, a transmitter address of the transmitting node, and a receiver address of a wireless access point to which the wireless advertisement frame is to be received. Also, the wireless access point may be configured to receive the wireless advertisement frame from the network, and in response, transmit a reflected wireless advertisement frame having the source address of the reachable node, the destination address to which the reachable node is to be advertised, a transmitter address of the access point, and a receiver address that indicates the reflected frame is to be accepted by any appropriate receiver excluding the transmitting node.Type: GrantFiled: June 17, 2014Date of Patent: September 29, 2015Assignee: CISCO TECHNOLOGY, INC.Inventors: Norman W. Finn, Robert O'Hara, Rohit Suri, Joshua Broch
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Publication number: 20150201451Abstract: A controller controls access points (APs) in a network of APs. The controller causes the first AP to establish an Internet Protocol (IP) tunnel with a router connected with a wired network and over which data packets are routed between the wired network and a client device wirelessly connected to the first AP. The controller receives a roam indication that the client device is wirelessly connected with a second AP. In response to the indication, the controller instructs the first AP to maintain the IP tunnel with the router and instructs the second AP to establish an inter-AP tunnel with the first AP in order to route traffic between the wired network and the client device over both the IP tunnel and the inter-AP tunnel.Type: ApplicationFiled: January 15, 2014Publication date: July 16, 2015Applicant: Cisco Technology, Inc.Inventors: Rajesh Pazhyannur, Rohit Suri
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Patent number: 8971289Abstract: In one embodiment, a method includes receiving a packet from a source wireless device at a second switch, the source wireless device previously associated with a first switch and roamed to and associated with the second switch, wherein a point of presence for the source wireless device is maintained at the first switch, inserting into the packet a direction indicator, and forwarding the packet from the second switch to the first switch, the direction indicator identifying the packet as being transmitted towards the point of presence for the source wireless device to prevent a forwarding loop. An apparatus is also disclosed.Type: GrantFiled: May 24, 2011Date of Patent: March 3, 2015Assignee: Cisco Technology, Inc.Inventors: Vipul Shah, Bhanu Gopalasetty, Navindra Yadav, Sudhir K. Jain, Rohit Suri
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Publication number: 20150038129Abstract: In one implementation, a wireless network device is automatically accessed and configured through a mobile device. The mobile device receives provisioning data encoded for installation and operation of a network device and decodes the provisioning data to identify at least one access parameter for the network device. The mobile device accesses a wireless network of the network device according to the access parameter. Once access has been established, the mobile device transmits a configuration signal including a network configuration setting through the wireless network to the network device for the installation of the network device. The network device is provisioned based on the network configuration setting.Type: ApplicationFiled: July 30, 2013Publication date: February 5, 2015Applicant: Cisco Technology, Inc.Inventors: Nitya Sundareswaran, Rohit Suri, Keerti Lakshminarayan, Lizhen Lin, Mei Tong, Manjunathaharsha Nagaraju
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Publication number: 20140293941Abstract: In one embodiment, a transmitting node may be configured to transmit a wireless advertisement frame over a computer network, wherein the frame includes a source address of a reachable node being advertised, a destination address to which the reachable node is to be advertised, a transmitter address of the transmitting node, and a receiver address of a wireless access point to which the wireless advertisement frame is to be received. Also, the wireless access point may be configured to receive the wireless advertisement frame from the network, and in response, transmit a reflected wireless advertisement frame having the source address of the reachable node, the destination address to which the reachable node is to be advertised, a transmitter address of the access point, and a receiver address that indicates the reflected frame is to be accepted by any appropriate receiver excluding the transmitting node.Type: ApplicationFiled: June 17, 2014Publication date: October 2, 2014Inventors: Norman W. Finn, Robert O'Hara, Rohit Suri, Joshua Broch
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Patent number: 8774077Abstract: In one embodiment, a wireless access point receives a wireless advertisement frame having a source address field that indicates a reachable node being advertised, a destination address field that indicates a destination to which the reachable node is to be advertised, a transmitter address field that indicates a transmitting node from which the wireless advertisement frame is received, and a receiver address field that indicates the access point. The wireless access point then transmits a reflected wireless advertisement frame having a source address field that indicates the reachable node, a destination address field that indicates the destination, a transmitter address field that indicates the wireless access point, and a receiver address field that indicates both a plurality of receivers the reflected wireless advertisement frame is to be accepted by, and a node that is to be excluded from accepting the reflected wireless advertisement frame.Type: GrantFiled: August 20, 2012Date of Patent: July 8, 2014Assignee: Cisco Technology, Inc.Inventors: Norman W. Finn, Robert O'Hara, Rohit Suri, Joshua Broch
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Publication number: 20140153473Abstract: Techniques are provided to manage how router advertisement messages are forwarded for ultimate wireless transmission in a wireless network. In one embodiment, a multicast router advertisement message intended for a virtual local area network is converted into individual unicast router advertisement messages directed to specific wireless mobile client devices that are part of that virtual local area network. In another embodiment, router advertisement messages are routed between controllers according to the current location of a wireless mobile client device. In still other embodiments, techniques are provided to minimize the volume of the router advertisement messages sent over a wireless network, and to proactively send a unicast router advertisement message to a mobile client device that has performed a handoff, without waiting for a router solicitation message.Type: ApplicationFiled: February 4, 2014Publication date: June 5, 2014Applicant: Cisco Technology, Inc.Inventors: Srinath Gundavelli, Abhijit Choudhury, Rohit Suri, Venkatesh Kanagasabapathy, Bhavannarayana Nelakanti, Sudhir Jain
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Patent number: 8730960Abstract: Described herein are techniques that provide for the transmission of a multicast stream that can resend frames that were not received using the partial state block acknowledgement mechanism. In an example embodiment, an access point reserves a channel for a transmission opportunity of a sufficient length to allow the sending of multicast data, block acknowledgement request, and receipt of a block acknowledgement. Optionally, the transmission opportunity may be of sufficient length to enable packets that re resent to be sent during the transmission opportunity, thereby preventing other stations on the channel from gaining control of the channel. Alternatively the access point may employ an appropriate backoff between TXOPs to AP prevent (T)DLS traffic to the recipients of the multicast stream. The access point does not send any frames from other queues during the transmission opportunity.Type: GrantFiled: October 25, 2011Date of Patent: May 20, 2014Assignee: Cisco Technology, Inc.Inventors: Brian Donald Hart, Santosh Pandey, Rohit Suri
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Patent number: 8724583Abstract: Techniques are provided herein to support roaming of wireless mobile client devices from one wireless local area network access point device to another wireless local area network access point device. Neighbor discovery messages are received from wireless mobile client devices. A neighbor discovery message specifies a target address for a neighbor discovery function. A response to a neighbor discovery message is sent to a wireless mobile client device such that the response message appears to have been sent by a wireless mobile client device that has an address that corresponds to the target address of the neighbor discovery message.Type: GrantFiled: November 4, 2009Date of Patent: May 13, 2014Assignee: Cisco Technology, Inc.Inventors: Srinath Gundavelli, Abhijit Choudhury, Rohit Suri, Venkatesh Kanagasabapathy, Bhavannarayana Nelakanti, Sudhir Jain
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Patent number: 8687609Abstract: Techniques are provided to manage how router advertisement messages are forwarded for ultimate wireless transmission in a wireless network. In one embodiment, a multicast router advertisement message intended for a virtual local area network is converted into individual unicast router advertisement messages directed to specific wireless mobile client devices that are part of that virtual local area network. In another embodiment, router advertisement messages are routed between controllers according to the current location of a wireless mobile client device. In still other embodiments, techniques are provided to minimize the volume of the router advertisement messages sent over a wireless network, and to proactively send a unicast router advertisement message to a mobile client device that has performed a handoff, without waiting for a router solicitation message.Type: GrantFiled: November 4, 2009Date of Patent: April 1, 2014Assignee: Cisco Technology, Inc.Inventors: Srinath Gundavelli, Abhijit Choudhury, Rohit Suri, Venkatesh Kanagasabapathy, Bhavannarayana Nelakanti, Sudhir Jain
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Patent number: 8675601Abstract: Techniques are provided to enable a support for guest access of devices in a network. At a controller apparatus in a first mobility sub-domain of a network comprising a plurality of mobility sub-domains, a request message containing a request for guest network access for a device is received from a first access switch in the first mobility sub-domain. The controller apparatus forwards the request message to a guest controller. At a tunneling endpoint apparatus in the first mobility sub-domain, a tunnel is established to the guest controller to carry traffic between the device and the guest controller. Traffic for the device passes in a tunnel between the first access switch and the tunneling endpoint apparatus in the first mobility sub-domain, through the tunneling endpoint apparatus in the first mobility sub-domain and in the tunnel between the routing apparatus in the first mobility sub-domain and the guest controller.Type: GrantFiled: May 17, 2010Date of Patent: March 18, 2014Assignee: Cisco Technology, Inc.Inventors: Patrice Calhoun, Abhijit Choudhury, Rohit Suri, Sudhir Jain, Ranganatha Marathe, Bhanu Gopalasetty, Navindra Yadav, Sreenivasulu Mondem