Abstract: The present invention relates to a packet switch and a packet switching method. An example embodiment of the present invention comprises at least three network ports, at least one instrument port, a mux-switch, a packet switch fabric, and an address table. The embodiment updates the address table to include the source address of each ingress packet of each network port and associate the source address with that network port. The mux-switch routes the ingress packet traffic of each network port according to the identity of the network port so that at least a copy of the packet traffic of one of the network ports is routed to an instrument port. The packet switch fabric routes the packets from the instrument ports to the network ports according the destination address of the packet and the identity of the network port that is associated with the destination address as recorded in the address table.

Abstract: A first instrument port of a packet switch appliance is connected to a first data storage device. A second port is configured as a first network port. A first meta-data tag is created for a first block of packets received through the first network port. The first block is sent to the first data storage device through the first instrument port. The first meta-data tag or copy is sent to the first data storage device and/or a storage management server. A second instrument port of the packet switch appliance is connected to a second data storage device. A second meta-data tag is created for a second block of packets received through the first network port. The second block is sent to the second data storage device through the second instrument port. The second meta-data tag or copy is sent to the second data storage device and/or the storage management server.

Abstract: A device for processing data being optically transmitted via a LRM connection includes an optical splitter for splitting an input signal into a first output signal and a second output signal, the optical splitter having an operating wavelength with a value that is between 1260 nm and 1355 nm, wherein the optical splitter has an input end for receiving the input signal, a first output end for outputting the first output signal, and a second output end for outputting the second output signal.

Abstract: A packet switch appliance includes a plurality of ports. One of the plurality of ports is configured to operate as a network port connected to a packet-switching network. Another of the plurality of ports is configured to operate as a first instrument port connected to a network instrument. To filter packets, one or more packets or copies of packets received through the first network port are examined prior to the packets or copies of packets being sent out the first instrument port to determine a current state of a state-based protocol, which includes a plurality of potential states. A filter is created or modified for the first network port or the first instrument port based on the determined current state of the state-based protocol.

Abstract: The present invention relates to a packet switch and a packet switching method. An example embodiment of the present invention comprises at least three network ports, at least one instrument port, a mux-switch, a packet switch fabric, and an address table. The embodiment updates the address table to include the source address of each ingress packet of each network port and associate the source address with that network port. The mux-switch routes the ingress packet traffic of each network port according to the identity of the network port so that at least a copy of the packet traffic of one of the network ports is routed to an instrument port. The packet switch fabric routes the packets from the instrument ports to the network ports according the destination address of the packet and the identity of the network port that is associated with the destination address as recorded in the address table.

Abstract: A graphical user interface is provided for displaying network analysis. Included is a plurality of tabs selectable by a user. Also included is a plurality of windows each associated with one of the tabs and adapted for displaying a different aspect of a network analysis. In use, the windows are each displayed upon the selection of the associated tab.

Abstract: The present invention relates to a packet switch and a packet switching method. An example embodiment of the present invention comprises at least three network ports, at least one instrument port, a mux-switch, a packet switch fabric, and an address table. The embodiment updates the address table to include the source address of each ingress packet of each network port and associate the source address with that network port. The mux-switch routes the ingress packet traffic of each network port according to the identity of the network port so that at least a copy of the packet traffic of one of the network ports is routed to an instrument port. The packet switch fabric routes the packets from the instrument ports to the network ports according the destination address of the packet and the identity of the network port that is associated with the destination address as recorded in the address table.

Abstract: The present invention relates to a packet switch and a packet switching method. An example embodiment of the present invention comprises at least three network ports, at least one instrument port, a mux-switch, a packet switch fabric, and an address table. The embodiment updates the address table to include the source address of each ingress packet of each network port and associate the source address with that network port. The mux-switch routes the ingress packet traffic of each network port according to the identity of the network port so that at least a copy of the packet traffic of one of the network ports is routed to an instrument port. The packet switch fabric routes the packets from the instrument ports to the network ports according the destination address of the packet and the identity of the network port that is associated with the destination address as recorded in the address table.

Abstract: The present invention relates to a packet switch and a packet switching method. An example embodiment of the present invention comprises at least three network ports, at least one instrument port, a mux-switch, a packet switch fabric, and an address table. The embodiment updates the address table to include the source address of each ingress packet of each network port and associate the source address with that network port. The mux-switch routes the ingress packet traffic of each network port according to the identity of the network port so that at least a copy of the packet traffic of one of the network ports is routed to an instrument port. The packet switch fabric routes the packets from the instrument ports to the network ports according the destination address of the packet and the identity of the network port that is associated with the destination address as recorded in the address table.

Abstract: Channels in an optical network that carry optical signals are evaluated using signal characteristics and suitable channels are compared to identify the channels that represent a single conversation using matching criteria. In another aspect, only channels that carry optical signals representing conversations of interest are compared.

Abstract: A graphical user interface is provided for displaying network analysis. Included is a plurality of tabs selectable by a user. Also included is a plurality of windows each associated with one of the tabs and adapted for displaying a different aspect of a network analysis. In use, the windows are each displayed upon the selection of the associated tab.

Abstract: A system, method and computer program product are provided for ascertaining the location of an access point in a wireless network. Initially, a strength of a radio frequency signal of an access point of a wireless network is monitored at a position utilizing a wireless network analyzer. Next, the wireless network analyzer is moved about the position. The foregoing operations may be repeated to allow the location of the access point to be ascertained based on the monitored strength of the radio frequency signal.

Abstract: A graphical user interface is provided for displaying network analysis including a window including a plurality of gauges selected from the group consisting of a first gauge for indicating a number of packets specified by the network analysis, a second gauge for indicating a network utilization specified by the network analysis, and a third gauge for indicating a number of errors specified by the network analysis.

Abstract: A method, system and computer program product for analyzing link failure in a network is described, wherein a protocol analyzer captures handshake protocol frames exchanged by two nodes attempting to establish a physical link. The captured handshake protocol frames ordered sets are displayed to the user in a merged, time-ordered list, and the information contained in the frames is decoded and displayed. If an attempt to establish a link fails, the symptoms of the failure and a possible diagnosis are identified and displayed. The user is thereby provided with a complete, understandable picture of the events leading up to the link failure, and with symptoms and possible cause of the link failure.

Abstract: A system and method for identifying and analyzing active channels in an asynchronous transfer mode (ATM) network. The system and method open a plurality of ATM network channels during a time period; automatically monitor each of the plurality of open channels to identify any active channels from among the open channels; and automatically identify the type of traffic transmitted on the open channels. By systematically identifying the active channels in the ATM network, the ATM network analysis device can further analyze the traffic on the active channels. The present invention includes at least three functions: network data detection and capture, active channel determination, and ATM Application Layer (AAL) service type categorization. A network data detector and identifier (DDI) performs the functions of network data detection and capture. The DDI connects to an ATM network and captures, copies, and repeats cells transmitted on the network and copies cells of interest to the DDI for further analysis.

Abstract: A system and method for identifying and analyzing active channels in an asynchronous transfer mode (ATM) network. The system and method monitor an ATM network signal channel to identify setup, connect, and release messages which permit identification of active switched virtual circuits and the service type used for that active virtual circuit's traffic. The system and method also possess the simultaneous ability to open a plurality of ATM network channels during a time period; to automatically monitor each of the plurality of open channels to identify any active channels from among the open channels; and to automatically identify the type of traffic transmitted on the open channels. By systematically identifying the active channels in the ATM network, the ATM network analysis device can further analyze the traffic on the active channels.