Patents Assigned to Aruba Networks
-
Patent number: 7948953Abstract: According to one embodiment of the invention, a method comprises advertising services by a first wireless device. The services are provided by different basic service sets, each basic service set having the same service set identifier (SSID). Thereafter, one of the basic service sets is selected.Type: GrantFiled: December 19, 2005Date of Patent: May 24, 2011Assignee: Aruba Networks, Inc.Inventors: Keerti G. Melkote, Pradeep J. Iyer
-
Patent number: 7885217Abstract: According to one embodiment of the invention, a method comprises determining whether a non-unicast message is to be transmitted by a transmitting device, which may involve a setting a Delivery Traffic Indicator Map (DTIM) Interval value to reflect a longer periodicity than associated with a Listen Interval. After such determination, the non-unicast message may be converted into one or more unicast messages for transmission.Type: GrantFiled: March 22, 2007Date of Patent: February 8, 2011Assignee: Aruba Networks, Inc.Inventors: Pradeep Iyer, John Richard Taylor
-
Patent number: 7885602Abstract: Providing network security includes detecting network traffic associated with an ad hoc network that includes a first station and a second station, and preventing data sent by the first station from reaching the second station.Type: GrantFiled: October 6, 2006Date of Patent: February 8, 2011Assignee: Aruba Networks, Inc.Inventors: Nicholas Kelsey, Christopher Waters
-
Patent number: 7855963Abstract: According to one embodiment of the invention, a method for controlling capacity of a wired or wireless network with varying bandwidth capacity is described. First, dynamic conditions associated with the data flow are measured. These dynamic conditions influence a bandwidth capacity for the data flow. Next, the capacity is estimated in order to adjust the data flow based on the estimated capacity per the measured dynamic conditions.Type: GrantFiled: December 21, 2006Date of Patent: December 21, 2010Assignee: Aruba Networks, Inc.Inventors: Subbu Ponnuswamy, Partha Narasimhan
-
Publication number: 20100277368Abstract: Multi-pattern transmission of wireless frames. A digital device contains a transmitter feeding an electronically steerable antenna system where the radiation pattern produced by the antenna system may be selected. Different antenna radiation patterns are used in transmitting a first portion of a wireless frame and a second portion of a wireless frame in a wireless digital network. In one embodiment, a first portion of a wireless frame is transmitted using a wide radiation pattern while the second portion of the frame is transmitted using a second radiation pattern. Switching among radiation patterns in the electronically steerable antenna system may be accomplished by switching between antenna types, such as an omnidirectional antenna for the wide pattern, and beam-steered or sectorized antennas for the second radiation pattern. Beam-forming and/or phasing approaches may also be used. The first and second portions of the frame may be transmitted at different power levels.Type: ApplicationFiled: April 29, 2009Publication date: November 4, 2010Applicant: Aruba Networks, Inc.Inventor: Subburajan Ponnuswamy
-
Publication number: 20100281180Abstract: Initiating peer-to-peer tunnels between clients in a mobility domain. Client traffic in a mobility domain normally passes from the initiating client to an access node, and from the access node through a tunnel to a controller, and then through another tunnel from the controller to the destination access node, and the destination client. When initiated by the controller, the access nodes establish a peer-to-peer tunnel for suitable client traffic, bypassing the “slow” tunnels through the controller with a “fast” peer-to-peer tunnel. Traffic through this “fast” tunnel may be initiated once the tunnel is established, or traffic for the “fast” tunnel may be queued up until traffic has completed passing through the “slow” tunnel. This queue and release process may be bidirectional or unidirectional depending on the traffic. Completion of slow tunnel traffic may be sensed in a number of ways.Type: ApplicationFiled: April 30, 2009Publication date: November 4, 2010Applicant: Aruba Networks, Inc.Inventor: Pradeep J. Iyer
-
Publication number: 20100272103Abstract: Synchronization of mobile multicast membership in a wireless network. A controller supports one or more wireless access points, each of which supports wireless clients. A Mobility Manager (MM) in the controller monitors wireless client activity. The controller establishes an IGMP proxy which intercepts IGMP messages from wireless clients and handles the IGMP messages on clients' behalf. When a wireless client wishes to join a multicast, the client's IGMP join message is intercepted by the controller IGMP proxy, and the controller IGMP proxy joins the multicast for the client. The Mobility Manager observes the actions of the IGMP proxy. If a client moves from its home agent (HA) controller to a different foreign agent (FA) controller, the Mobility Manager in the FA controller locates the Mobility Manager in the HA controller and receives information on the client including information on any multicast streams the client is receiving.Type: ApplicationFiled: April 24, 2009Publication date: October 28, 2010Applicant: Aruba Networks, Inc.Inventors: Shankar Kambat Ananthanarayanan, Ravinder Verma
-
Publication number: 20100275017Abstract: Establishing peer-to-peer tunnels between clients in a mobility domain. In normal operation, clients attached to a network having access nodes connected to a central controller transfer all traffic through the central controller. This traffic is passed using tunnels between the access node and the central controller. Tunnels may be encrypted, and GRE tunnels may be used. A mobility manager operating in the controller tracks access nodes connected to the controller, and clients connected to those access nodes. When the mobility controller recognizes traffic passing between clients in its mobility domain that is eligible for peer-to-peer forwarding, it instructs the access nodes supporting the clients to establish a peer-to-peer tunnel between the nodes, and direct the client traffic through this peer-to-peer tunnel. The peer-to-peer tunnel may be session based, or may be aged.Type: ApplicationFiled: April 24, 2009Publication date: October 28, 2010Applicant: Aruba Networks, Inc.Inventors: Pradeep J. Iyer, Keerti G. Melkote
-
Patent number: 7756126Abstract: According to one embodiment of the invention, a method for providing VLAN mobility that comprises at least two operations. A first operation involves determining whether a unique identifier of the second network device is within an Association listing. The Association listing includes unique identifiers of networks devices associated with the first network device and virtual local area network (VLAN) identifiers for the network devices associated with the first network device. A second operation involves determining if the unique identifier of the second network device is within a Bridge listing if the unique identifier of the second network device is not located within the Association listing.Type: GrantFiled: September 30, 2005Date of Patent: July 13, 2010Assignee: Aruba Networks, Inc.Inventors: Pradeep Iyer, John Richard Taylor
-
Patent number: 7696836Abstract: Improved coupler for Ethernet over twisted pair. An improved coupler has a first common mode choke for connecting an Ethernet PHY to the primary winding of a transformer. The secondary winding of the transformer connects through a second common mode choke for connection to a twisted pair line. In one embodiment, the first common mode choke, transformer, and second common mode choke are placed in the same package. In a second environment, a plurality of choke-transformer-choke units are placed in the same package. In a third embodiment, the plurality of choke-transformer-choke units may be integrated into a connector. Pairs of the second common mode chokes may share cores.Type: GrantFiled: October 30, 2007Date of Patent: April 13, 2010Assignee: Aruba Networks, Inc.Inventors: Thomas Nguyen, Jerry Martinson
-
Patent number: 7688869Abstract: In one embodiment, the invention relates to a serial line circuit that comprises a serial information (SI) bus and at most two isolators interposed between a pair of programmable devices. In the TRANSMIT direction, a first programmable device is configured to multiplex serial data received from a plurality of serial UARTs and to route such data to the second programmable device over the SI bus and through a first isolator. In the RECEIVE direction, the second programmable device is configured to sample data from a plurality of serial interconnects and to route the sampled data to the first programmable device. The sampled data is routed over the SI bus and through a second isolator. The data transmission over the SI bus is in accordance with a proprietary serial transmission protocol described below.Type: GrantFiled: February 19, 2004Date of Patent: March 30, 2010Assignee: Aruba Networks, Inc.Inventors: Joel F. Adam, Jerry Martinson
-
Patent number: 7627002Abstract: In one embodiment, the invention relates to utilization of a single interconnect to support the transmission of data, power and serial control information to an access point. The interconnect comprises at least three and perhaps four twisted pairs such as a CAT-5 cable.Type: GrantFiled: September 9, 2002Date of Patent: December 1, 2009Assignee: Aruba Networks, Inc.Inventors: Merwyn B. Andrade, Kent H. Headrick
-
Publication number: 20090163232Abstract: Extending dual-mode phones using SMS messages. When operating in cellular mode, SMS messages originated by a mobility controller in the enterprise command features such as indicators on the dual-mode phone. SMS messages are received by an agent in the dual-mode phone. A mobility controller connected to the enterprise SIP PBX and voicemail system receives messages for example indicating voicemail status and sends specially formatted SMS messages to the cellular phone to operate indicators. Similarly, the dual-mode phone issues SMS messages to the enterprise mobility controller to request the enterprise PBX perform features such as call conferencing, call pickup, and call pull.Type: ApplicationFiled: July 7, 2008Publication date: June 25, 2009Applicant: Aruba Networks, Inc.Inventors: Ramesh Kondru, Saji Xavier
-
Publication number: 20090156217Abstract: Handover of a call to a dual-mode phone from cellular to Wi-Fi. When handing over a call mediated by a mobility controller to a dual-mode phone and switching the call from a cellular to a Wi-Fi call, the mobility controller initates a Wi-Fi connection to the dual mode phone. When the Wi-Fi connection is established, and with the cellular connection through the mobility controller still in place, the mobility controller starts a timer with a predetermined value and the dual-mode phone initiates release of the cellular connection. When the timer expires, the mobility controller switches the call from the cellular connection to the Wi-Fi connection.Type: ApplicationFiled: December 12, 2007Publication date: June 18, 2009Applicant: Aruba Networks, Inc.Inventor: Rajneesh Bajpai
-
Publication number: 20090113535Abstract: Services in a network device are added through providing virtual environments. Virtualization allows services based on other platforms or architectures to be run with minimum modification and in a secure manner. Connecting services to the host through a stateful firewall allows dynamic integration, and passes only traffic of interest to the service. Virtualization allows services written for different instruction architectures to be supported. Multiple virtualized environments each supporting a service may be run.Type: ApplicationFiled: October 30, 2007Publication date: April 30, 2009Applicant: Aruba Networks, Inc.Inventors: John Taylor, Randy Chou, Pradeep Iyer, Dave Logan
-
Patent number: 7525943Abstract: In general, one embodiment of the invention relates to a method of operation where the type of an incoming Media Access Control (MAC) frame is initially determined. Based on such determination, the MAC frame is processed locally at an access point if the MAC frame is one of a first group of MAC frames. Otherwise, the MAC frame is processed remotely at a switch communicatively coupled to the access point.Type: GrantFiled: April 4, 2005Date of Patent: April 28, 2009Assignee: Aruba Networks, Inc.Inventors: Pradeep J. Iyer, Partha Narasimhan, Keerti G. Melkote, John Taylor
-
Publication number: 20090082034Abstract: The present invention comprises a system and method for determining an estimated position of a wireless mobile client device operating in a communications environment covered by a wireless local area network. The received signal strength of the wireless mobile client device is measured by one or more access points serving devices in the communications environment. In a preferred embodiment, the error between the received signal strength measured by the access points and the expected received signal strength at a plurality of locations in the communications environment is calculated. The location of the device is determined from the error.Type: ApplicationFiled: September 26, 2008Publication date: March 26, 2009Applicant: Aruba Networks, Inc.Inventors: Gordon P. Gray, Anthony G. Burke
-
Patent number: 7414995Abstract: In general, one embodiment of the invention is a radio access point (RAP) system adapted to a wired network. The RAP system comprises a radio access point and a switch coupled together by an interconnect. The radio access point includes components to digitally sample a detected, wireless analog signal thereby producing digital data. The digital data is placed into a frame for transmission over the interconnect. The switch includes a radio access point (RAP) component that recovers the digital data from the frame transmitted over the interconnect. The RAP component processes the digital data to recover media access control (MAC) frames containing data for subsequent transmission over the wired network.Type: GrantFiled: September 9, 2002Date of Patent: August 19, 2008Assignee: Aruba Networks, Inc.Inventors: Keerti G. Melkote, Pankaj S. Manglik, Joel F. Adam
-
Patent number: D604724Type: GrantFiled: July 30, 2007Date of Patent: November 24, 2009Assignee: Aruba Networks, Inc.Inventors: Lor John Vorreiter, Jeffrey L. Pochop, Jr., Jonathan Burke
-
Patent number: D627345Type: GrantFiled: January 29, 2009Date of Patent: November 16, 2010Assignee: Aruba Networks, Inc.Inventors: Gururaj Govindasamy, Jonathan Burke, Kenneth Mak, Thomas Nguyen, Jeffrey L. Pochop, Jr.