Patent•
Intelligent communications network tap port aggregator
07 Mar 2006-
TL;DR: In this article, a number of device interface terminals for receiving network feeds, a tap structure coupled with device interfaces, the tap structure configured to monitor the second network feeds and to aggregate the network feeds into an aggregated network feed, a monitor interface terminal coupled to the tap structures for providing the aggregated data to a network monitor, and a display coupled with the tap and configured to display selected network parameters corresponding to network feeds.
Abstract: Intelligent network tap port aggregators for use in monitoring a network and methods for use therein are presented including: a number of device interface terminals for receiving network feeds; a tap structure coupled with device interface terminals, the tap structure configured to monitor the second network feeds and to aggregate the network feeds into an aggregated network feed; a monitor interface terminal coupled to the tap structure for providing the aggregated network feed to a network monitor; and a display coupled to the tap structure and configured to display selected network parameters corresponding to the network feeds. In some embodiments, the intelligent network tap port aggregator also includes: a network controller coupled with the tap structure for providing communication between the tap structure and a number of managing devices; and a managing device interface coupled with the network controller for providing Internet access to the network controller.
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Patent•
31 May 2006TL;DR: In this paper, a network tap device that is configured for operation in a copper Gigabit Ethernet communications network using a power-over-Ethernet (POE) electrical supply is disclosed.
Abstract: A network tap device that is configured for operation in a copper Gigabit Ethernet communications network using a power-over-Ethernet (“POE”) electrical supply is disclosed. In one embodiment, a network tap device powered by a POE supply is disclosed, comprising first and second network ports that are configured with receptacles for receiving communication cables. The communication cables are configured to carry both data signals and the POE supply to and from the network tap device. The network tap device further includes first and second tap ports that connect with additional communication cables to a monitoring device. The network tap device also includes control and regulation circuitry that is configured to receive the POE supply from the communication cables via the network ports and to enable components of the network tap device to be operated by the POE supply.
75 citations
Patent•
21 Oct 2014TL;DR: In this article, a system and method for observing and controlling a programmable network via higher layer attributes is described, which includes one or more collectors, a network manager, and a PN element.
Abstract: A system and method for observing and controlling a programmable network via higher layer attributes is disclosed. According to one embodiment, the system includes one or more collectors, a network manager, and a programmable network element. The one or more collectors are configured to receive network traffic data from a plurality of network elements and extract metadata from the network traffic data. The network manager is configured to receive metadata from the one or more collectors. The network manager identifies a network control objective for the network, identifies a programmable parameter of the programmable network element to achieve the network control objective, and programs the programmable network element. The network manager further determines whether the network control objective is met after programming the programmable network element and applies a control loop based on the network control objective to program the programmable network element.
53 citations
Patent•
31 May 2006TL;DR: In this paper, a network tap device array capable of being powered by a power-over-Ethernet (POE) supply is presented, which enables data from multiple nodes in a communications network to be tapped and forwarded to a plurality of monitoring devices.
Abstract: A network tap device array capable of being powered by a power-over Ethernet (“POE”) supply is disclosed. The array enables data from multiple nodes in a communications network to be tapped and forwarded to a plurality of monitoring devices. In one embodiment the network tap device array includes a chassis that is configured to receive a plurality of network tap devices that are each powered by a POE supply. Each network tap device includes network ports for receiving and transmitting network data via communication cables and tap ports for forwarding the tapped network data to the monitoring device. In another embodiment, a sub-chassis includes a plurality of network tap devices and an aggregator that aggregates tapped data from each of the tap devices. The aggregator then forwards the aggregated data to the monitoring device. The sub-chassis can be included in a chassis that is configured to receive multiple populated chassis.
45 citations
Patent•
01 Jul 2005
TL;DR: In this article, the authors proposed an active response network tap for use in monitoring a network consisting of a first device interface terminal, a second device interface terminals, a first monitor interface terminals and a second monitor interface terminal.
Abstract: An active response network tap for use in monitoring a network comprises a first device interface terminal, a second device interface terminal, a first monitor interface terminal, and a second monitor interface terminal. A tap structure is coupled to the first device interface terminal, second device interface terminal, first monitor interface terminal and second monitor interface terminal. A memory is coupled to the tap structure and configured to store data. In one aspect, the tap structure is configured to communicate full-duplex traffic between the tap structure and a monitor device coupled to a monitor interface terminal. In another aspect, the tap structure is configured to insert data from a monitor coupled to the first monitor interface into the traffic between the first device and the second device. Advantages of the invention include the ability to provide monitor access to a network while also supporting communication with other network devices.
41 citations
Patent•
16 Jan 2009TL;DR: In this article, a real-time statistic information monitoring unit, an alert condition setting unit for alerting one or more conditions regarding the information collected from the traffic collecting device in real time, and an alert managing/notifying unit for generating an alert regarding traffic between the network and the access network based upon one or multiple alert conditions.
Abstract: A network traffic analyzing device accurately analyzes traffic of a communications network. The traffic analysis device includes a real time statistic information setting/managing unit for collecting information regarding communication data between a primary network and an access network from a traffic collecting device in real time. The device also includes a real time statistic information monitoring unit, an alert condition setting unit for alerting one or more conditions regarding the information collected from the traffic collecting device in real time, and an alert managing/notifying unit for generating an alert regarding traffic between the network and the access network based upon one or more alert conditions.
41 citations
References
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Patent•
29 Jul 2003TL;DR: In this article, the authors proposed an improved apparatus for a radio communication system having a multiplicity of mobile transceiver units selectively in communication with a plurality of base transceivers which, in turn, communicate with one or more host computers for storage and manipulation of data collected by bar code scanners.
Abstract: Improved apparatus for a radio communication system having a multiplicity of mobile transceiver units selectively in communication with a plurality of base transceiver units which, in turn, communicate with one or more host computers for storage and manipulation of data collected by bar code scanners or other collection means associated with the mobile transceiver units. A network controller and an adapter which has a simulcast and sequential mode provide selective interface between host computers and base transceivers. A scheme for routing data through the communication system is also disclosed wherein the intermediate base stations are organized into an optimal spanning-tree network to control the routing of data to and from the RF terminals and the host computer efficiently and dynamically. Additionally, redundant network and communication protocol is disclosed wherein the network utilizes a polling communication protocol which, under heavy loaded conditions, requires that a roaming terminal wishing to initiate communication must first determine that the channel is truly clear by listing for an entire interpoll gap time. In a further embodiment, a criterion used by the roaming terminals for attaching to a given base station reduces conflicts in the overlapping RF regions of adjacent base stations.
445 citations
Patent•
07 Jan 1992
TL;DR: In this paper, a field programmable gate array (FPGA) consisting of routing and logic blocks (RLBs) and segmented routing channels is described, where each RLB is configurable to perform both logic functions and routing functions.
Abstract: A field programmable gate array (FPGA) comprising routing and logic blocks (RLBs) and segmented routing channels is disclosed. Each RLB is configurable to perform both logic functions and routing functions. A plurality of forwardly propagating RLBs (FPRLBs) and a plurality of backwardly propagating RLBs (BPRLBs) intermesh with one another to form a two-dimensional checkerboard array. Each column of the RLB array comprises a plurality of FPRLBs and BPRLBs in alternating sequence. Similarly, each row of the RLB array comprises a plurality of FPRLBs and BPRLBs in alternating sequence. The FPRLBs forwardly propagate signals and the BPRLBs backwardly propagate signals. Each FPRLB may receive a plurality of input signals from a plurality of FPRLBs in the preceding leftward column. Moreover, each FPRLB may output a plurality of output signals to a plurality of FPRLBs in the next rightward column. Similarly, each BPRLB may receive a plurality of input signals from a plurality of BPRLBs in the preceding rightward column and transmit a plurality of output signals to a plurality of BPRLBs in the next leftward column. A plurality of vertical segmented routing channels are disposed between the columns of RLBs, the vertical segmented routing channels accessible to the input and output of adjacent columns of RLBs.
368 citations
Patent•
07 Apr 2003
TL;DR: In this article, a system and method is presented for analyzing information in a communication line for unwanted intrusions and for allowing information to be transmitted back into the communication line without disrupting the communication traffic when an intrusion is detected.
Abstract: A system and method is presented for analyzing information in a communication line for unwanted intrusions and for allowing information to be transmitted back into the communication line without disrupting the communication traffic when an intrusion is detected. The system and method includes a security tap connected to a firewall. The security tap is also connected to an intrusion detection device. The intrusion detection device analyzes the information in the communication line for indicia of attempts to compromise the network. When such indicia is detected, the intrusion detection device sends a “kill” data packet back through the security tap and directed back to the communication line to the firewall to instruct the firewall to prevent further communications into the network by the intrusive source. An Ethernet switch or field programmable gate array (FPGA) is incorporated in the security tap to coordinate the transmission of the “kill” data packet to avoid data collisions with data transmissions already existing in the communication line.
286 citations
Patent•
11 Jan 2002
TL;DR: In this paper, a system, method, and computer program product are provided for expert application performance analysis, where an application is monitored and performance data is gathered during the monitoring and a set of metrics is generated based on the performance data.
Abstract: A system, method, and computer program product are provided for expert application performance analysis An application is monitored Performance data is gathered during the monitoring A set of metrics is generated based on the performance data A performance of the application is measured from at least one of a client perspective, a server perspective, and a network perspective using the metrics
277 citations
Patent•
24 Feb 1997
TL;DR: In this paper, a bi-directional network medium monitor including a tap apparatus connected inserted in a network media, including a transceiver and a clock recovery element for each medium and medium monitor connection, is presented.
Abstract: A bi-directional network medium monitor including a tap apparatus connected inserted in a network media, e.g. Fiber Optic (FX) and Twisted Pair (TX), comprising a transceiver and a clock recovery element for each medium and medium monitor connection, and a bi-directional serial data multiplexer which directs the medium data while in the serial data format. Also, the medium monitor may interrupt medium data transfer in either medium direction and insert its data for diagnostic or other network purposes. Thus, the apparatus according to the present invention is operable to monitor a network at the maximum data rates currently used while providing no significantly network data delay.
246 citations