Patents Assigned to Extreme Networks
  • Patent number: 9716615
    Abstract: A network comprises a plurality of switches coupled in a ring topology, wherein each adjacent pair of switches in the plurality of switches forms a multiple link aggregation group interswitch connection therebetween and forms a ring resiliency protocol logical node. A first switch in a first adjacent pair of the plurality of switches is coupled via a first link to a second switch in a second adjacent pair of the plurality of switches, and a third switch in the first adjacent pair is coupled via a second link to a fourth switch in the second adjacent pair. In the event of a failure of the first link, a packet flow to be transmitted from the first switch over the first link is redirected from the first switch to the third switch for transmission over the second link to the fourth switch.
    Type: Grant
    Filed: April 16, 2013
    Date of Patent: July 25, 2017
    Assignee: Extreme Networks, Inc.
    Inventors: Donald B. Grosser, Shankara Ramamurthy
  • Patent number: 9706426
    Abstract: A method, a controller, and a network provide Visible Light Communications Personal Area Network (VPAN) and Wireless Local Area Network (WLAN) interworking and mobility management systems and methods. The method includes receiving data traffic from both a Wireless Local Area Networking (WLAN) domain and a Visible Light Communications (VLC) domain, uniquely identifying, in a controller, a device in both the WLAN domain and the VLC domain as a same device using an addressing scheme associated with both the WLAN domain and the VLC domain, wherein the device is configured to operate in both the WLAN domain and the VLC domain, and providing data traffic to the device via one of the WLAN domain and the VLC domain based on a plurality of factors.
    Type: Grant
    Filed: November 18, 2013
    Date of Patent: July 11, 2017
    Assignee: EXTREME NETWORKS, INC.
    Inventors: Jeelan Poola, Somesh Agrawal, Prasad K, Sundaresan Sundaram
  • Patent number: 9632995
    Abstract: Assisting a user to navigate through a performance of a task, the task including a plurality of sub-tasks. Two or more of the sub-tasks are serially presented on a graphical user interface. Each of the two or more sub-tasks is displayed in a respective area of the graphical user interface. For each of the two or more sub-tasks, the user is enabled to perform the sub-task by entering information into the respective area of the sub-task as the sub-task is presented. While the two or more sub-tasks are being presented, a sub-task list of items is displayed to the user on the graphical user interface. Each item represents a respective one of the plurality of sub-tasks. Displaying the sub-task list includes displaying, within at least one of the items, information corresponding to the sub-task represented by the at least one item.
    Type: Grant
    Filed: November 20, 2003
    Date of Patent: April 25, 2017
    Assignee: EXTREME NETWORKS, INC.
    Inventors: Brian Stanley Locke, Gail M. Breck, David Alexander Brousseau, Ronald S. Fitzpatrick, Jr., Paul Playdon, Kiet H. Tran, Kevin Allen White
  • Patent number: 9584393
    Abstract: A function is provided in a network system for policy-based dynamic mirroring for network traffic. The function monitors events, topology and status of the network and installs, enables, selects or changes traffic mirrors associated with the operation of one or more devices of the network. The mirror policies are established based on network polices and/or rules. The mirror policies and the enablement, installation, selection or changing of them are based on multiple criteria. The function provides for the selection of traffic to mirror, how much of it to mirror, where to mirror it and when to stop the mirroring. The function may be established in network entry devices as well as core switching devices of the network. The function can select portals for the mirroring activity and can secure the mirroring.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: February 28, 2017
    Assignee: Extreme Networks, Inc.
    Inventors: David Kjendal, Markus Nispel, Richard Graham
  • Patent number: 9576270
    Abstract: A system and related method for the exchange of information, data and instructions between one or more network administrators and one or more network infrastructure devices via one or more media exchanges. Devices are managed using a social media agent including a session agent that translates media messages into network device content and vice versa while maintaining context. Particular media interfaces may be selected for messaging dependent upon the particular message to be exchanged. Shorthand may be used to facilitate messaging through media of interest.
    Type: Grant
    Filed: May 7, 2012
    Date of Patent: February 21, 2017
    Assignee: Extreme Networks, Inc.
    Inventors: Vala Afshar, Leo Lam, Douglas Hyde, Jamie Woodhead, Michael Lam, Richard Graham
  • Patent number: 9525486
    Abstract: A network, a Visible Light Communications (VLC) controller, and a method relate to a network architecture splitting frame processing functionality between Light Fidelity (LiFi) Access Points (APs) and a VLC controller or virtualized controller. In such configurations, the LiFi APs are so-called thin devices that may be widely deployed through an infrastructure to concurrently provide illumination and network access via VLC protocols such as IEEE 802.15.7 or variants thereof.
    Type: Grant
    Filed: November 18, 2013
    Date of Patent: December 20, 2016
    Assignee: Extreme Networks, Inc.
    Inventors: Jeelan Poola, Somesh Agrawal, Prasad K, Sundaresan Sundaram
  • Patent number: 9455934
    Abstract: Systems, mechanisms, apparatuses, and methods are disclosed for forwarding Inter-Switch Connection (ISC) frames in a Network-to-Network Interconnect (NNI) topology, for example, via a network switch which includes a first physical switch port to receive a physical switch link from a second network switch; logic to implement a first logical ISC and a second logical ISC? connection to the second network switch via the physical switch link; a second physical switch port to receive an interface connection from a third network switch; and switch forwarding logic to forward frames received at the first network switch to the second network switch via the logical ISC or logical ISC? based on whether or not the physical switch link is part of an active topology upon which the network switch operates or is not part of the active topology upon which the network switch operates. Other embodiments are disclosed.
    Type: Grant
    Filed: October 7, 2014
    Date of Patent: September 27, 2016
    Assignee: Extreme Networks, Inc.
    Inventor: Stephen R. Haddock
  • Patent number: 9407455
    Abstract: Embodiments disclosed herein provide redundant connectivity between an Ethernet Automatic Protection Switching (EAPS) access network and a Virtual Private LAN Service (VPLS) network. A first VPLS node is provided to function as an EAPS controller node. A second VPLS node is provided to function as an EAPS partner node. The first and second VPLS nodes are linked by a pseudowire and an EAPS shared-link. Additional EAPS nodes are also provided. The additional EAPS nodes are linked to each other and one of the additional EAPS nodes is designated as a master node. Links are also established between the VPLS nodes and the EAPS nodes such that one or more EAPS rings are formed. Each EAPS ring includes the shared-link between the first and second VPLS nodes. The EAPS rings are monitored to detect link failures.
    Type: Grant
    Filed: July 2, 2014
    Date of Patent: August 2, 2016
    Assignee: Extreme Networks, Inc.
    Inventors: Olen L. Stokes, Sunil P. Shah, Arnel Lim
  • Patent number: 9391803
    Abstract: Systems, mechanisms, apparatuses, and methods are disclosed for dynamically tagging VLANs. For example, in one embodiment such means include: means for receiving a packet having identified therein a source Media Access Control (MAC) address and a Virtual Local Area Network (VLAN) Identifier, wherein the VLAN identifier corresponds to a VLAN which is non-existent on a network switch; means for modifying the packet received to include two VLAN tags, a first VLAN tag corresponding to the VLAN identifier identified within the packet received and a second VLAN tag, distinct from the first; means for determining no forwarding database entry exists for the modified packet; and means for creating the VLAN on the network switch to handle received packets tagged with the VLAN identifier.
    Type: Grant
    Filed: November 18, 2014
    Date of Patent: July 12, 2016
    Assignee: Extreme Networks, Inc.
    Inventors: Donald B. Grosser, Shankara Ramamurthy
  • Patent number: 9385942
    Abstract: A system for providing at least one node of an n-node multi-switch link aggregation group (MLAG) includes a packet forwarding device for receiving a packet destined for at least one n-node MLAG, n being an integer greater than 2. The packet forwarding device includes a packet forwarding database for storing packet forwarding rules for the at least one n-node MLAG. The packet forwarding device further includes a processing element for forwarding, blocking forwarding of, or redirecting the packet in accordance with one of the packet forwarding rules defined for the n-node MLAG group in the packet forwarding database.
    Type: Grant
    Filed: April 30, 2014
    Date of Patent: July 5, 2016
    Assignee: Extreme Networks, Inc.
    Inventors: Donald B. Grosser, Jr., Shankara Ramamurthy
  • Patent number: 9256636
    Abstract: A function is provided for identifying computer applications running on a network. Information obtained from frames having content associated with computer applications is examined and compared to information stored on the network. The stored information is obtained from a plurality of mechanisms including computer application signatures. An application identification engine of the function compares examined content with the known application information and determines an indication of the likely computer application associated with the examined frames. The determination output may include a level of confidence in the accuracy of the determination. The function includes an application programming interface to allow the introduction into the engine of custom mechanisms for application identification. The different mechanisms may be weighted. The function may be provided in one or more devices of the network including a standalone appliance.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: February 9, 2016
    Assignee: Extreme Networks, Inc.
    Inventors: Michael Rash, Patrick Bosa, Richard Graham
  • Patent number: 9252548
    Abstract: Systems and apparatuses are disclosed having a 3×8 stacked RJ45 connector with an integrated LEDs option for a 1U product form factor to provide increased density of an RJ45 connector which utilizes open source and non-proprietary modular connectors in conformity with published standards. For example, in one embodiment such systems and apparatuses include a networking component having therein a connector which includes a plurality of RJ45 jacks arranged into exactly three horizontal rows and a plurality of vertical columns; a printed circuit board to electrically interface with each of the plurality of RJ45 jacks; and a 1× Rack Unit (1U) chassis having the connector and printed circuit board therein, in which at least a portion of the connector extends into a horizontal plane occupied by the printed circuit board. Rack systems and methods are further described for employing such a networking component.
    Type: Grant
    Filed: July 8, 2014
    Date of Patent: February 2, 2016
    Assignee: Extreme Networks, Inc.
    Inventors: Alice Meng, Unnikrishnan Gangadharan, Marwan Naboulsi, Gavin Richard Cato
  • Publication number: 20160014018
    Abstract: A switching device supports a mixed mode of operation using both layer 2 and layer 3 multicast forwarding tables for multicast forwarding of packets. In the mixed mode of operation the switching device programs multicast forwarding entries in a corresponding layer 2 or layer 3 table depending on a type of protocol to be used for multicast forwarding. The switching device programs multicast forwarding entries in the layer 3 table for multicast packets forwarded using layer 3 routing protocols, and in the layer 2 table for multicast packets forwarded using layer 2 protocols. The switching device converts layer 3 multicast information to layer 2 multicast information before programming multicast forwarding entries in the corresponding layer 2 table.
    Type: Application
    Filed: September 22, 2015
    Publication date: January 14, 2016
    Applicant: EXTREME NETWORKS, INC.
    Inventors: Donald B. Grosser, Vanitha Neelamegam, Maruthamuthu Palani, Balasubramanian Ramu, Kannan Selvaraj
  • Patent number: 9230213
    Abstract: A function is provided for effectively identifying computer applications running on a network. The function receives information related to frames of packets moving through the network. The information is compared to known information about computer applications. The known information is obtained from a plurality of mechanisms, including the option of obtaining it through custom mechanisms. The comparison information is scored for each of the plurality of mechanisms and those scores are combined to establish a single score indicative of the likely computer application associated with the received frames. One or more mathematical operations can be used to combine the scores. The mechanisms may be weighted for likely accuracy and the score that is established may include with it an indication of the level of confidence in that score. One or more of the plurality of mechanisms may be used to weight others of the types of mechanisms.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: January 5, 2016
    Assignee: Extreme Networks, Inc.
    Inventors: Michael Rash, Patrick Bosa, Richard Graham
  • Patent number: 9189317
    Abstract: A method comprising detecting an problem with a software product, capturing debugging information corresponding to the detected problem, searching for the detected problem in a repository of a set of known issues corresponding to the software product to identify a root cause of the detected problem. If the detected problem is a known issue in the set of known issues corresponding to the software product, automatically applying a corresponding solution to the detected problem. If the detected problem is not a known issue in the set of known issues corresponding to the software product, analyzing the user input describing an occurrence of the problem with the software product, as well as the captured debugging information. Based on the analysis, the repository of the set of known issues is updated to include the detected problem as a new known issue and a corresponding solution to the detected problem.
    Type: Grant
    Filed: March 17, 2011
    Date of Patent: November 17, 2015
    Assignee: Extreme Networks, Inc.
    Inventor: Venkadesan Marimuthu
  • Patent number: 9172627
    Abstract: A function is provided in a network system for the dynamic mirroring of network traffic for a variety of purposes including the identification of characteristics of the traffic. Multiple criteria are established for when, what and where to mirror the traffic. The criteria include what frames of traffic to mirror, what portions of the selected frames to mirror, one or more portals through which to mirror the selected frames, a destination for the mirroring and the establishment of a mirror in a device to carry out the mirroring. The criteria may also include when to stop the mirroring. The mirroring instructions can be changed based on the detection of a triggering event, such as authentication, device type or status, ownership of an attached function attached to the device, flow status, but not limited to that. The function may be established in one or more devices of the network.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: October 27, 2015
    Assignee: Extreme Networks, Inc.
    Inventors: David Kjendal, Markus Nispel, Ernie Eaton, Richard Graham, Jeffrey Haskell
  • Patent number: 9166884
    Abstract: A method is provided for a network location service in which one or more packet forwarding devices in the network collect and maintain location data for the devices/users currently connected to a network. The data is maintained locally in each packet forwarding device and may be provided on demand to a network/business application, such as emergency 911 services or a location-based security or personalization system. The location data is provided in real-time or near real-time using an in-band channel communication and/or over the Internet using a standard transport protocol, such as HTTP/S and SOAP web services.
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: October 20, 2015
    Assignee: EXTREME NETWORKS, INC.
    Inventors: Nick G. Suizo, Wolfgang Lochner, Anil Villait, Raj Nagarajan
  • Patent number: 9154372
    Abstract: A user is enabled to edit a table defining a view of a network object database, for example, a MIB. The user can select from among a plurality of network object types and select from among a plurality of columns of the table. At least one column of the table is specified by the user and edited to represent a network object type specified by the user. The view definition can be extracted from the application and transported to another device where it can be edited and/or viewed using a suitable application. Such portable view definition may be defined as part of a document, for example, a document formatted in accordance with a markup language, such as XML. Such document may include information for requesting objects to populate the view, which may be used to construct requests (e.g., SNMP requests) to retrieve objects from one or more network devices.
    Type: Grant
    Filed: July 25, 2003
    Date of Patent: October 6, 2015
    Assignee: EXTREME NETWORKS, INC.
    Inventors: James P. Richmond, Steven Charles Bir, David Scott Grieve, Brian Stanley Locke, Christopher McClain, Daniel Timothy Murphy
  • Patent number: 9143437
    Abstract: A switching device receives a data packet and searches for a layer 3 multicast destination address specified in a header of the received data packet in a layer 3 multicast forwarding database table. The switch searches for a corresponding port list in a layer 3 egress table if the layer 3 multicast destination address is found. However, if the layer 3 multicast destination address is not found, the switch searches for a layer 2 destination address specified in header of the received data packet in a layer 2 multicast forwarding database table, and the switch searches for a port list in a layer 2 egress table if the layer 2 destination address is found. If neither the layer 3 or layer 2 destination address is found in the searches, the switch discards or floods the received data packet out all ports of the switching device.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: September 22, 2015
    Assignee: Extreme Networks, Inc.
    Inventors: Donald B. Grosser, Vanitha Neelamegam, Maruthamuthu Palani, Balasubramanian Ramu, Kannan Selvaraj
  • Patent number: 9116660
    Abstract: A novel midplane is shaped with voids through which a dataplane connection is made between components on one side of the midplane and components on the opposite side of the midplane. The voids in the novel midplane offer numerous advantages in the design of network devices, including improved cooling performance, minimizing rack unit space and maximizing interface density, improved signal integrity allowing greater bandwidth through elimination of midplane signaling connections, improved upgradability of orthogonal direct connectors with little or no impact on the midplane or chassis, and proper alignment between the components of the dataplane.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: August 25, 2015
    Assignee: EXTREME NETWORKS, INC.
    Inventors: Christopher A. Widmann, John Kruszewski, Richard Leath, Alice Meng