Anue Systems, Inc.

Cisco Technology, Inc.

Keysight Technologies Singapore (holdings) Pte. Ltd.

Keysight Technologies Singapore (sales) Pte. Ltd.

Ronald A Pleshek

Patricia A Abkowitz

Charles Albert Webb, Iii

Gregory S Hilton

Keith E Cheney

Himanshu Mahendra Thaker

Arun K Thakkar

Robert C Taylor

Marco J Matchefts

Ramona Boyd

Andrew Spooner

Rachel C Neal

Andrew Morton Spooner

Richard G Jeske

Scott A Harper

Franz J Weller

James P Duke

Systems and methods are disclosed to forward packets not passed by criteria-based filters in packet forwarding systems. The disclosed embodiments include one or more Not Passed By Criteria (NPBC) filters that are defined for input ports along with one or more criteria-based filters, such as for example, Pass by Criteria (PBC) filters and/or Deny by Criteria filters (DBC), that forward packets not passed by these criteria-based filters. NPBC filters include, for example, Pass Unmatched PBC filters associated with PBC filters and configured to forward packets not passed by PBC filters and/or Pass Matched DBC filters associated with DBC filters and configured to forward packets not passed by DBC filters. Using one or more NPBC filters within the disclosed embodiments, packet data that is not being passed along to output ports by the criteria-based filters can be easily passed to one or more designated output ports.

Systems and methods to forward packets not passed by criteria-based filters in packet forwarding systems

Systems and methods are disclosed for unified systems of network tool optimizers (NTOs). A NTO supervisor device controls switch fabric circuitry to interconnect a plurality of NTO member devices so that packets received at a source port for one NTO member device can be output to a destination port for a different NTO member device. The NTO supervisor device is further configured to analyze filters for the NTO member devices and to generate filter rules for forwarding packets among the various NTO member devices using the switch fabric circuitry. Further, additional secondary NTO supervisor devices can also be included within the unified NTO system to further expand the system. As such, a plurality of NTO member devices are managed and controlled by one or more NTO supervisor devices to form a highly scalable and efficient unified NTO system.

Unified systems of network tool optimizers and related methods

Systems and methods are disclosed that allow for improved management and control of packet forwarding in network systems. Network devices and tool optimizers and a related systems and methods are disclosed for improved packet forwarding between network sources and destination tools in a network monitoring environment. The network devices and tool optimizers disclosed can include a graphical user interfaces (GUIs) through which a user can create and modify filters and select associated filter criteria for forwarding packets from input ports to output ports. The network devices and tool optimizers can also automatically generate filter rules and apply them to the appropriate filter engines so that packets are forwarded as desired by the user. The GUI can be configured to provide other features as well.

Filtering path view graphical user interfaces and related systems and methods

Systems and methods are disclosed that allow for improved management and control of packet forwarding in network systems. Network devices and tool optimizers and a related systems and methods are disclosed for improved packet forwarding between input ports and output ports. The input ports and output ports are configured to be connected to source devices and destination devices, for example, network sources and destination tools in a network monitoring environment. The network devices and tool optimizers disclosed can use a packet processing system whereby forwarding behavior is governed by matching packets in parallel against multiple user-specified packet filtering criteria, and by performing forwarding actions associated with all such matching filter criteria. The multi-action packet forwarding can be implemented using hardware configured to directly provide multi-action packet forwarding and/or hardware configured to provide single-packet-forwarding that has been subsequently configured using filter engines to provide multi-action packet forwarding.

Automatic filter overlap processing and related systems and methods

Systems and methods are disclosed that allow for improved management and control of packet forwarding in network systems. Network devices and tool optimizers and a related systems and methods are disclosed for improved packet forwarding between input ports and output ports. The input ports and output ports are configured to be connected to source devices and destination devices, for example, network sources and destination tools in a network monitoring environment. The network devices and tool optimizers disclosed can use superset packet forwarding, such that ingress filter engines are configured with ingress filter rules so as to forward a superset of packets to output ports associated with overlapping filters. Egress filter engines are configured with egress filter rules to then determine which of the superset packets are actually sent out the output ports.

Superset packet forwarding for overlapping filters and related systems and methods

A subtended communication network includes a first node servicing a plurality of first subscribers and having a subtend module and a corresponding first identifier. The first node can store a second identifier corresponding to a second node coupled to the subtend module. The subtended communication network also includes a second node servicing a plurality of second subscribers and having a network interface module and corresponding second identifier. The second node can store the first identifier corresponding to the first node coupled to the network interface module. The subtended communication network further includes a management module coupled to the first node and the second node. The management module can determine a subtending relationship between the first node and the second node by retrieving the first identifier from the second node and the second identifier from the first node.

Method and apparatus for managing a subtended communication network

A system for updating a memory storing configuration information of a network element includes a network element and a network manager coupled to the network element using a communication network. The network manager receives selected configuration information from the network element to update a selected part of the memory if a received state variable does not match a stored state variable.

System for synchronizing configuration information of a network element if received trap sequence number is out-of-sequence

System for updating selected part of configuration information stored in

Growing community of inventors

Austin, TX, United States of America

Ronald A Pleshek