Extreme Networks Patent Grants

System and method for prevention of denial of service attacks for hosted network address translator

Granted: November 14, 2017
Patent Number: 9819745
To determine the correct media stream to latch onto, the system and method uses a hashing algorithm to uniquely identify a legitimate media stream. A first invite message is received at a Session Border Controller (SBC) to establish a communication session. For example a Session Initiation Protocol (SIP) INVITE is received. The first invite message comprises a first hash of a fingerprint. For example, the hash may be a hashed session key. A media message is received that contains the…

Access network dual path connectivity

Granted: November 7, 2017
Patent Number: 9813257
A transport network employs dual homing to an access network to provide connectivity from multiple network switches. Dual homing is a mechanism by which an access network employs pair of switches in the transport network as if it were connecting to a single device. Conventional arrangements for defining multiple paths from a transport network to an access network suffer from the shortcomings of potential routing loops, increased hops to the access network, and inability or inconsistency…

Shortest path bridging (SPB) configuration of networks using client device access of remote

Granted: November 7, 2017
Patent Number: 9813291
Implementations relate to configuration of networks using client device access of a remote server. In some implementations, a method includes requesting a management server from an end device for shortest path bridging (SPB) configuration information for the end device to communicate on an SPB network, where the end device communicates with the management server over a non-SPB connection. The SPB configuration information is received from the management server, and the SPB configuration…

Device and related method for establishing network policy based on applications

Granted: November 7, 2017
Patent Number: 9813447
A function is provided in a network system for adjusting network policies associated with the operation of network infrastructure devices of the network system. Network policies are established on network devices including packet forwarding devices. The network has a capability to identify computer applications associated with traffic running on the network. A network policy controller of the network is arranged to change one or more policies of one or more network devices based on…

Visible light communications personal area network controller and access point systems and methods

Granted: October 31, 2017
Patent Number: 9806811
A network, a Visible Light Communications controller (120), and a method relate to a network architecture splitting frame processing functionality between Light Fidelity Access Points (130) and the Visible Light Communications controller or a virtualized controller. In such configurations, the Light Fidelity Access Points are so-called thin devices that may be widely deployed through an infrastructure to concurrently provide illumination and network access via Visible Light…

mDNS support in unified access networks

Granted: October 31, 2017
Patent Number: 9806945
Methods, systems and computer readable media for mDNS support in unified access networks are described.

Layer 3 (L3) best route selection rule for shortest path bridging multicast (SPBM) networks

Granted: October 31, 2017
Patent Number: 9806989
A method, apparatus and computer program product for providing a best route selection rule is presented. A determination is made at a first edge router, whether a second edge router in a network advertises a first BMAC address and at least one other BMAC address When the second edge router advertises only a first BMAC address, then the first BMAC address is used in a routing table for a Layer 3 (L3) next hop for a route. When the second edge router advertises more than one BMAC address,…

Method of reducing traffic loss when bringing up a switch within a multi chassis switch cluster without using dedicated intra cluster links

Granted: October 31, 2017
Patent Number: 9806998
A method, apparatus and computer readable medium for reducing traffic loss when bringing up a switch within a multi chassis switch cluster without using dedicated intra cluster links is presented. A first network device in a cluster discovers at least one path to a second network device in the cluster, wherein the cluster utilizes at least one virtual IST between the first network device and the second network device. The first network device starts an Inter Switch Trunk (IST)…

Captive portal systems, methods, and devices

Granted: October 10, 2017
Patent Number: 9787502
Embodiments of the present technology provide out-of-band captive portal devices, networks, and methods. An example of a method includes executing a redirection of a client request for network access to a captive portal login, initiating an association between the wireless controller and the client, receiving authentication credentials of client from the captive portal login, negotiating a change of authorization with a wireless controller in accordance with RFC 5176 protocol, wherein…

Secure management of host connections

Granted: October 3, 2017
Patent Number: 9779222
An access gateway monitors a communication session to a first host for commands entered by a user. For example, commands entered in a command line terminal by the user. When a command is received, the access gateway receives information about an effect caused by the command on the first host. The access gateway determines if the effect results in an attempt to establish a communication session between the first host and a second host. For example, to copy files from the second host. In…

Power controlled network devices for security and power conservation

Granted: August 29, 2017
Patent Number: 9749959
The present invention provides method and systems for activating or deactivating network devices by managing the power of the network device. By controlling the power for network devices, the size and coverage of the network can be adjusted to meet the needs for the current usage. This can be particularly advantageous in wireless networks where multiple wireless access points may be provided to provide coverage during peak usage but present the additional security concern of the network…

Methods and systems for selectively processing virtual local area network (VLAN) traffic from different networks while allowing flexible VLAN identifier assignment

Granted: August 22, 2017
Patent Number: 9742588
Methods and systems for selectively processing VLAN traffic from different networks while allowing flexible VLAN identifier assignment are disclosed. According to one aspect, a layer 2 switch includes a virtual switch identifier data structure that associates a VLAN identifier extracted from a layer 2 frame and a port identifier corresponding to a port on which a frame is received with a virtual switch identifier. The virtual switch identifier is used to select a per-virtual-switch data…

Apparatus and method for network ring resiliency, availability and performance

Granted: July 25, 2017
Patent Number: 9716615
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…

Systems and methods for visible light communications personal area network and wireless local area network interworking

Granted: July 11, 2017
Patent Number: 9706426
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…

Method and apparatus for navigating through a task on a computer

Granted: April 25, 2017
Patent Number: 9632995
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…

Device and related method for dynamic traffic mirroring policy

Granted: February 28, 2017
Patent Number: 9584393
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…

System and related method for management of devices of a network system via social media interfaces

Granted: February 21, 2017
Patent Number: 9576270
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.…

Visible light communications personal area network controller and access point systems and methods

Granted: December 20, 2016
Patent Number: 9525486
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.

Forwarding inter-switch connection (ISC) frames in a network-to-network interconnect topology

Granted: September 27, 2016
Patent Number: 9455934
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…

Redundant Ethernet automatic protection switching access to virtual private LAN services

Granted: August 2, 2016
Patent Number: 9407455
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…