Patents Assigned to Extreme Networks
  • Traffic Deduplication in a Visibility Network
    Publication number: 20190149437
    Abstract: Techniques for implementing traffic deduplication in a visibility network are provided. According to one embodiment, a packet broker of the visibility network can receive a control or data packet replicated from a core network. The packet broker can then apply a first stage deduplication process in which the packet broker attempts to deduplicate the control or data packet based on one or more interfaces of the core network from which the control ot data packet originated, and apply a second stage deduplication process in which the packet broker attempts to deduplicate the control or data packet based on the content (e.g., payload) of the control or data packet.
    Type: Application
    Filed: October 1, 2018
    Publication date: May 16, 2019
    Applicant: Extreme Networks, Inc.
    Inventors: Deepak Hegde, Shailender Sharma, Rakesh Varimalla
  • Route lookup resolution
    Patent number: 10277421
    Abstract: Methods and systems for routing connections between federated enterprises are provided. More particularly, user location information is stored as part of a first directory accessible to a federation broker. Location information obtained in association with a requested connection is used by the federation broker to access a second directory containing the locations of points of presence within the enterprise that includes the target communication device.
    Type: Grant
    Filed: October 31, 2011
    Date of Patent: April 30, 2019
    Assignee: Extreme Networks, Inc.
    Inventors: Mahalingam Mani, David Ahrens
  • Automated Mirroring and Remote Switch Port Analyzer (RSPAN) Functions Using Fabric Attach (FA) Signaling
    Publication number: 20190109902
    Abstract: A method and apparatus for automated mirroring is presented. A network device running as a Fabric Attach (FA) server configured to mirror traffic to a Remote Switch Port Analyzer (RSPAN) Virtual Local Area Network (VLAN), issues an FA Type Length Value (TLV) on its uplink to the FA server. The TLV includes a request to associate said RSPAN VLAN with a Service Identifier (I-SID) used to carry mirror traffic in a network. The network device sends the mirrored traffic on the RSPAN VLAN on its uplink to the FA server. The network device signals the I-SID into the network, and detects receive interest in the I-SID. The network device delivers the mirrored traffic to devices that expressed a receive interest in the mirrored traffic.
    Type: Application
    Filed: October 8, 2018
    Publication date: April 11, 2019
    Applicant: Extreme Networks, Inc.
    Inventors: Srikanth Keesara, Venkat Dabbara, Parthiv Shrimankar, Robert Lee
  • Software-based packet broker
    Patent number: 10243813
    Abstract: Techniques for implementing a software-based packet broker in a visibility network are provided. According to one embodiment, the software-based packet broker can comprise a network device and a cluster of one or more processing nodes. The network device can receive a control or data packet replicated from a core network and forward the control or data packet to the cluster of one or more processing nodes. At least one processing node in the cluster can then execute, in software, one or more packet processing functions on the control or data packet, where the one or more packet processing functions are operable to determine an egress port of the network device through which the control or data packet should be forwarded to a probe/tool of the visibility network for analysis.
    Type: Grant
    Filed: July 8, 2016
    Date of Patent: March 26, 2019
    Assignee: Extreme Networks, Inc.
    Inventors: Deepak Hegde, Shailender Sharma, Rakesh Varimalla, Vedam Jude Pragash, Shubharanjan Dasgupta
  • Device and related method for dynamic traffic mirroring
    Patent number: 10212224
    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: October 26, 2015
    Date of Patent: February 19, 2019
    Assignee: Extreme Networks, Inc.
    Inventors: David Kjendal, Markus Nispel, Ernie Eaton, Richard Graham, Jeffrey Haskell
  • Enabling configuration in networks
    Patent number: 10193748
    Abstract: Embodiments generally relate to enabling configuration in networks. In one embodiment, a method includes receiving a message from an edge configuration device, wherein the message contains shortest path bridging (SPB) configuration information. The method also includes performing an intermediate system-to-intermediate system (IS-IS) configuration in response to receiving the message.
    Type: Grant
    Filed: September 30, 2013
    Date of Patent: January 29, 2019
    Assignee: Extreme Networks, Inc.
    Inventors: Zenon Kuc, Roger Lapuh, Karthik Gopalakrishnan, Paul Unbehagen, John Mead, Greg Landry
  • System and related method for management of devices of a network system via social media interfaces
    Patent number: 10193848
    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: January 19, 2017
    Date of Patent: January 29, 2019
    Assignee: Extreme Networks, Inc.
    Inventors: Vala Afshar, Leo Lam, Douglas Hyde, Jamie Woodhead, Michael Lam, Richard Graham
  • Apparatus and method for multicast data packet forwarding
    Patent number: 10187293
    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: Grant
    Filed: September 22, 2015
    Date of Patent: January 22, 2019
    Assignee: Extreme Networks, Inc.
    Inventors: Donald B. Grosser, Vanitha Neelamegam, Maruthamuthu Palani, Balasubramanian Ramu, Kannan Selvaraj
  • Authentication of client devices in networks
    Patent number: 10142342
    Abstract: Implementations relate to authentication of end devices in networks. In some implementations, a method includes receiving identity information at an edge configuration device from an end device via a connection, where the identity information identifies the end device or one or more users associated with the end device. A request is sent from the edge configuration device to an access control server connected to the network in response to receiving the identity information, where the request requests authentication for the end device. Authentication is received at the edge configuration device from the access control server for the end device to connect to a network connected to the edge configuration device.
    Type: Grant
    Filed: March 12, 2015
    Date of Patent: November 27, 2018
    Assignee: Extreme Networks, Inc.
    Inventors: John Seligson, Zenon Kuc, John Mead
  • Configuration of rules in a network visibility system
    Patent number: 10129088
    Abstract: Aspects of the present disclosure enable a router controller to maintain a default rules table indicating allocation of IP addresses (of GTP packets) to respective output ports. In an embodiment, the router controller receives information indicating the respective tunnel endpoint IP addresses of a control session and a data session of a user. The router controller is configured to determine whether such IP addresses of the control session and the data session(s) are allocated to the same output port. If the IP addresses of the control session and the data session are not allocated to the same output port, router controller is configured to generate a dynamic rule to force packets of both the control session and the data session to the same output port.
    Type: Grant
    Filed: October 30, 2015
    Date of Patent: November 13, 2018
    Assignee: Extreme Networks, Inc.
    Inventors: Shailender Sharma, Rakesh Varimalla
  • Automatic configuration of endpoint communication devices to set up a VOIP network
    Patent number: 10104134
    Abstract: Implementations relate to automatic configuration of endpoint communication devices to set up a communication network such as a VOIP network. In some implementations, a method includes a server receiving an extension request for device extension from an endpoint communications device connected to a communication network, mapping an identifier for the endpoint communications device to a device extension, and transmitting the device extension to the endpoint communications device.
    Type: Grant
    Filed: May 25, 2017
    Date of Patent: October 16, 2018
    Assignee: Extreme Networks, Inc.
    Inventors: Sounak Sinha, Subhankar Dey
  • Automated mirroring and remote switch port analyzer (RSPAN)/encapsulated remote switch port analyzer (ERSPAN) functions using fabric attach (FA) signaling
    Patent number: 10097633
    Abstract: A method and apparatus for automated mirroring is presented. A network device running as a Fabric Attach (FA) server configured to mirror traffic to a Remote Switch Port Analyzer (RSPAN) Virtual Local Area Network (VLAN), issues an FA Type Length Value (TLV) on its uplink to the FA server. The TLV includes a request to associate said RSPAN VLAN with a Service Identifier (I-SID) used to carry mirror traffic in a network. The network device sends the mirrored traffic on the RSPAN VLAN on its uplink to the FA server. The network device signals the I-SID into the network, and detects receive interest in the I-SID. The network device delivers the mirrored traffic to devices that expressed a receive interest in the mirrored traffic.
    Type: Grant
    Filed: January 29, 2016
    Date of Patent: October 9, 2018
    Assignee: Extreme Networks, Inc.
    Inventors: Srikanth Keesara, Venkat Dabbara, Parthiv Shrimankar, Robert Lee
  • Dynamic templates for virtualized systems
    Patent number: 10089097
    Abstract: Methods, systems and computer readable media for dynamic templates for virtualized systems are described. A method for initially deploying a virtualized can include receiving a selection indicating a dynamic template, and installing a base configuration using base configuration information obtained from the dynamic template. The method can also include traversing a hierarchy within the dynamic template and installing one or more sub-level configurations according to the hierarchy. The method can further include stopping the traversing and installing when a termination condition is reached.
    Type: Grant
    Filed: September 30, 2015
    Date of Patent: October 2, 2018
    Assignee: Extreme Networks, Inc.
    Inventors: Nishant Krishna, Seetharam V Rao, Kalaiyarasan Periasamy, Navaneethan Marichetty
  • Traffic deduplication in a visibility network
    Patent number: 10091075
    Abstract: Techniques for implementing traffic deduplication in a visibility network are provided. According to one embodiment, a packet broker of the visibility network can receive a control or data packet replicated from a core network. The packet broker can then apply a first stage deduplication process in which the packet broker attempts to deduplicate the control or data packet based on one or more interfaces of the core network from which the control or data packet originated, and apply a second stage deduplication process in which the packet broker attempts to deduplicate the control or data packet based on the content (e.g., payload) of the control or data packet.
    Type: Grant
    Filed: July 8, 2016
    Date of Patent: October 2, 2018
    Assignee: Extreme Networks, Inc.
    Inventors: Deepak Hegde, Shailender Sharma, Rakesh Varimalla
  • Self adapting driver for controlling datapath hardware elements
    Patent number: 10084613
    Abstract: A self adapting driver for controlling datapath hardware elements uses a generic driver and a configuration library to create a set of data structures and methods to map information provided by applications to physical tables. A set of virtual tables is implemented as an interface between the applications and the generic driver. The generic driver uses the configuration library to determine a mapping from the virtual tables to the physical tables. A virtual table schema definition is parsed to create the configuration library, such that changes to the physical infrastructure may be implemented as changes to the virtual table schema definition without adjusting the driver code. Thus automatically generated creation of generic packet forwarding drivers is able to be implemented through the use of a configuration language that defines the meaning of the information stored in the virtual tables.
    Type: Grant
    Filed: September 27, 2012
    Date of Patent: September 25, 2018
    Assignee: Extreme Networks, Inc.
    Inventor: Hamid Assarpour
  • Enhanced access security gateway
    Patent number: 10084797
    Abstract: A first login request of a user is received from a first login window. The first login request comprises a login name, a user identifier, and a challenge. The challenge is generated and received from a second login request to a product in a second login window. The user copies and pastes the challenge into the first login window. A central control system determines if the login name and the user identifier are valid. If the login name and user identifier are valid, a response to the challenge is generated based a private key and is displayed in the first login window. The response to the challenge is copied from the first login window and pasted as part of a second step the second login process. The second login process verifies the response to the challenge using a public key to allow the user access to the product.
    Type: Grant
    Filed: October 3, 2016
    Date of Patent: September 25, 2018
    Assignee: Extreme Networks, Inc.
    Inventors: Rifaat Shekh-Yusef, William T. Walker
  • Self-testing of services in an access point of a communication network
    Patent number: 10075361
    Abstract: A technique for self-testing of services in an access point of a communication network includes providing a table that has a mapping between a service test, packets to be sent for testing, and packets that should be received in response to the testing, emulating and marking the test packets to be sent, placing the marked test packets in an Rx queue, processing the test packets normally by the access point to provide response packets and marking these response packets, delivering the marked response packets to a Rx queue, retrieving the marked response packets from the Rx queue, and comparing the service test response packets to the list of packets that should have been received in the response to the testing in order to validate that service on the access point.
    Type: Grant
    Filed: July 15, 2011
    Date of Patent: September 11, 2018
    Assignee: Extreme Networks, Inc.
    Inventors: Senthilraj Shanmugavadivel, Anil Kaushik, Raj Kiran
  • Automated mirroring and remote switch port analyzer (RSPAN)/ encapsulated remote switch port analyzer (ERSPAN) functions using fabric attach (FA) signaling
    Patent number: 10075522
    Abstract: A method and apparatus for automated mirroring is presented. In a particular embodiment of a method for automated mirroring, a Network Device running as a Fabric Attach (FA) Server receives an FA Type Length Value (TLV) from an Access Device running as a FA proxy or client. The Access Device is configured to mirror traffic to a Remote Switch Port Analyzer (RSPAN) Virtual Local Area Network (VLAN). The TLV includes a request to associate the RSPAN VLAN with a Service Identifier (I-SID) used to carry mirror traffic in a network. The method includes wherein the FA server receives the mirrored traffic on the RSPAN VLAN. The FA Server signals the I-SID into the network, and detects receive interest in the I-SID. The FA Server delivers the mirrored traffic to devices that expressed a receive interest in the mirrored traffic.
    Type: Grant
    Filed: January 29, 2016
    Date of Patent: September 11, 2018
    Assignee: Extreme Networks, Inc.
    Inventors: Srikanth Keesara, Venkat Dabbara, Parthiv Shrimankar, Robert Lee
  • Ruled-based network traffic interception and distribution scheme
    Patent number: 10069764
    Abstract: Using a hash function, an L2/L3 switch can produce an FID for a data packet. The L2/L3 switch can select, from among potentially several stored VLAN flooding tables, a particular VLAN flooding table that is associated with a particular VLAN on which the data packet is to be carried. The rows of the particular VLAN flooding table can specify different combinations of the particular VLAN's egress ports. The L2/L3 switch can locate, in the particular VLAN flooding table, a particular row that specifies the FID. The L2/L3 switch can read, from the particular row, a specified subset of the egress ports that are associated with the particular VLAN. The L2/L3 switch can transmit copies of the data packet out each of the egress ports specified in the subset, toward analytic servers connected to those egress ports.
    Type: Grant
    Filed: February 6, 2017
    Date of Patent: September 4, 2018
    Assignee: Extreme Networks, Inc.
    Inventors: Xiaochu Chen, Ivy Pei-Shan Hsu, Eswara Chinthalapati, Sanjeev Chhabria
  • Automatically grouping, authenticating, and provisioning access points using cloud-based management of WLAN infrastructure
    Patent number: 10063417
    Abstract: Disclosed herein are systems and methods for automatically grouping, authenticating, and provisioning access points using cloud-based management of wireless-local-area-network (WLAN) infrastructure. In an embodiment, a given site has a master access point that is manually configured with an organization-and-site-specific master-access-point configuration for providing service in a WLAN. Additional access points installed for operation transmit self-identifying messages to neighboring access points. Each access point compiles information about its neighbor access points in access-point neighbor lists. The access-point neighbor lists are received and used by a cloud-based WLAN-management service to identify the associated master access point and to provision unauthenticated access points using the correct organization-and-site-specific master-access-point configuration.
    Type: Grant
    Filed: September 3, 2015
    Date of Patent: August 28, 2018
    Assignee: Extreme Networks, Inc.
    Inventors: Jeelan Basha Poola, Davis Kochery, Dominic Velikakath Peter