公开(公告)号：US11570039B2

公开(公告)日：2023-01-31

申请号：US17209636

申请日：2021-03-23

申请人： Extreme Networks, Inc.

发明人： Donagh Horgan ,  Abdul Razak ,  Giacomo Bernardi

IPC分类号： H04L41/0631

摘要： Provided herein are systems and methods for determining relationships between events occurring in networks. Notifications describing events occurring in networks can be received and processed to determine groups of network event types. A root-cause network can be generated based on the events, with the nodes of the root-cause network representing different event types and the edges of the root-cause network indicating directional, causal relationships between the nodes. A received network event can be processed to determine potential causes of the received network event based on the root-cause network and other events received by the network.

公开(公告)号：US20220255844A1

公开(公告)日：2022-08-11

申请号：US17360048

申请日：2021-06-28

申请人： Extreme Networks, Inc.

发明人： Gautam KHERA ,  Constantin BARCARU

IPC分类号： H04L12/733 ,  H04L12/717 ,  H04L12/721

摘要： Disclosed herein are system, method, and computer program product aspects for multiple instance Intermediate System to Intermediate System (IS-IS or ISIS) for a multi-area fabric. A network area in a multi-area fabric includes one or more network nodes and a boundary node shared with an other network area of the multi-area fabric outside of the network area. The boundary node can include a first ISIS instance associated with the network area and a second ISIS instance associated with the other network area. The second ISIS instance can be configured to pass information associated with the other network area to the first ISIS instance.

公开(公告)号：US20220255843A1

公开(公告)日：2022-08-11

申请号：US17360041

申请日：2021-06-28

申请人： Extreme Networks, Inc.

发明人： Gautam KHERA ,  Constantin BARCARU

IPC分类号： H04L12/733 ,  H04L12/717 ,  H04L12/721

摘要： Disclosed herein are system, method, and computer program product aspects for multiple instance Intermediate System to Intermediate System (IS-IS or ISIS) for a multi-area fabric. A network area in a multi-area fabric includes one or more network nodes and a boundary node shared with an other network area of the multi-area fabric outside of the network area. The boundary node can include a first ISIS instance associated with the network area and a second ISIS instance associated with the other network area. The second ISIS instance can be configured to pass information associated with the other network area to the first ISIS instance.

公开(公告)号：US20220086067A1

公开(公告)日：2022-03-17

申请号：US17537160

申请日：2021-11-29

申请人： Extreme Networks, Inc.

发明人： Donald B. Grosser ,  Chun Zhang ,  Patrick A. Bosa ,  Markus Nispel

IPC分类号： H04L12/26 ,  H04L12/24

摘要： Systems and methods are disclosed herein for monitoring health of each switch of a plurality of switches on a network by selectively mirroring packets transmitted by each switch of the plurality of switches. In some embodiments, control circuitry generates a plurality of mirroring parameters, each mirroring parameter comprising an instruction to mirror a respective type of packet. The control circuitry transmits the plurality of mirroring parameters to each switch of the plurality of switches on the network, and receives, from a switch, a packet that was mirrored by the switch according to a mirroring parameter of the plurality of mirroring parameters. The control circuitry determines the respective type of the packet, executes an analysis of contents of the packet based on the respective type of the packet, and determines a health of the switch based on results of the analysis.

公开(公告)号：US11133990B2

公开(公告)日：2021-09-28

申请号：US16401106

申请日：2019-05-01

申请人： Extreme Networks, Inc.

发明人： Norival Figueira ,  Shyamsundar Pullela ,  Alan Amrod

IPC分类号： H04L12/24 ,  H04L12/26

摘要： A system and method for providing a dynamic comparative network health analysis of a network environment, the method comprising: obtaining dynamic and static network environment parameters of a plurality of network environments; creating network environment profiles of each network environment of the plurality of network environments based on the dynamic and static network environment parameters; performing comparative analysis of network environment profiles of a first network environment of the plurality of network environments with network environment profiles of a second network environment of the plurality of network environments to generate a comparative analysis; based on the comparative analysis, determining whether to reconfigure the first network environment or create a new network environment; if it is determined to reconfigure the first network environment, generating a remedial plan for the first network environment; if it is determined to create a new network environment, generating a new plan for the new network environment.

公开(公告)号：US20210296755A1

公开(公告)日：2021-09-23

申请号：US17284729

申请日：2019-10-10

申请人： Extreme Networks, Inc.

发明人： Gururaj GOVINDASWAMY

IPC分类号： H01Q1/12 ,  F16B21/02 ,  F16B5/10

摘要： A mounting device configured to be integrated with a network device to facilitate mounting of the network device is disclosed. In an embodiment, the mounting device is a twist-to-lock mounting device configured to be compatible with one or more standard types of ceiling rails, allowing network devices to be mounted in a non-destructive manner without requiring the use of tools.

公开(公告)号：US20210243210A1

公开(公告)日：2021-08-05

申请号：US16778585

申请日：2020-01-31

申请人： Extreme Networks, Inc.

发明人： Giacomo BERNARDI ,  Donagh HORGAN ,  Jeffrey W. HASKELL ,  Markus NISPEL

IPC分类号： H04L29/06

摘要： Disclosed herein are system, method, and computer program product embodiments for providing an anomaly detection system. Some aspects of this disclosure include a method for detecting anomaly in a network device. The method includes determining one or more similarity values between a flow vector corresponding to a flow associated with the network device and one or more flow clusters associated with the network device. The method further includes determining a maximum similarity value as a maximum of the one or more similarity values and comparing the maximum similarity value to a threshold. The method also includes, in response to the maximum similarity value being equal to or greater than the threshold, updating a flow cluster associated with the maximum similarity value. The method also includes, in response to the maximum similarity measure being less than the threshold, detecting the anomaly in the network device.

公开(公告)号：US20210160181A1

公开(公告)日：2021-05-27

申请号：US17164504

申请日：2021-02-01

申请人： Extreme Networks, Inc.

发明人： Shailender SHARMA ,  Rakesh VARIMALLA ,  Sathya Narayana POTTIMURTHY

IPC分类号： H04L12/741 ,  H04L12/715 ,  H04L12/26

摘要： Aspects of the present disclosure provide a suitable architecture for a router controller which configures forwarding rules in a packet router of a network visibility system. In an embodiment, the router controller contains multiple controller blocks, with each controller block to examine a corresponding set of packets and to generate a respective set of forwarding rules for configuring the packet router. The router controller may also contain a switch to receive multiple packets and to forward to each controller block the corresponding set of packets. Each controller block may forward the respective set of forwarding rules to the switch, with the switch in turn configuring the packet router with the respective set of forwarding rules.

公开(公告)号：US11019028B2

公开(公告)日：2021-05-25

申请号：US15870069

申请日：2018-01-12

申请人： EXTREME NETWORKS, INC.

发明人： Srikanth Keesara ,  Bjorn Haas ,  Constantin Barcaru

IPC分类号： H04L29/12

摘要： Systems, methods, and apparatuses are disclosed herein for automatically assigning nicknames in a SPBM network. In some aspects, a first switch of a plurality of switches in the SPBM network is detected as being designated as responsible for assigning nicknames to the plurality of switches. Control circuitry responsively instantiates, at the nick name server, a DHCP service. The control circuitry detects, at the nickname server, a respective other switch of the plurality of switches in the SPBM network, and responsively assigns, using the DHCP service, a respective IP address for the respective other switch. A host portion of the respective IP address is assigned as the nickname for the respective other switch.

公开(公告)号：US11012358B2

公开(公告)日：2021-05-18

申请号：US16867992

申请日：2020-05-06

申请人： Extreme Networks, Inc.

发明人： How T. Lim ,  Lok Y. Hui

IPC分类号： H04L12/745 ,  H04L12/743 ,  H04L12/773 ,  H04L12/741

摘要： Disclosed herein are system, method, and computer program product embodiments for representing a forwarding information base (FIB) in a database. An embodiment operates by organizing forwarding entries of the FIB in a trie data structure. The embodiment determines that a first routing prefix of a first forwarding entry in the trie data structure is a less specific routing prefix than a second routing prefix in a second forwarding entry in the trie data structure based on the first forwarding entry being a parent of the second forwarding entry. The embodiment determines that a first next hop of the first routing prefix is equal to a second next hop of the second routing prefix. The embodiment removes the second forwarding entry from the trie data structure. The embodiment then inserts the first forwarding entry into the database based on a prefix length of the first routing prefix.