Viavi Solutions Inc.

Agilent Technologies, Inc.

Jds Uniphase Corporation

Samuel M Bauer

Michael Stevens

Canning Hsueh

Paul Kingsley

John Michael Page

Alistair Scott

John P Mcintire

James P Quan

A method of storing log entries of events from a plurality of network elements in a communication network, comprising the steps of: a) receiving log entries at a control processor of events from a plurality of different elements positioned, the log entries grouped into threads based on a common purpose; b) converting each log entry into a compact log record in a logging module, and c) storing the compact log records in a first memory buffer in random access memory (RAM) forming a first log file.

High speed logging system

A method of collecting information about a plurality of test devices connected in a network is provided. The method includes: identifying routable network addresses within a plurality of the network addresses, and sending discovery packets to the plurality of routable network addresses, receiving responses from the test devices, obtaining the information about the test devices, and storing the information so as to associate, for each of the test devices, the test-device information with at least one of the routable network addresses. The routable network addresses are stored in non-volatile memory for repeated use in re-discovery of the test devices in the network.

Method of collecting information about test devices in a network

A method of providing topology information about a network to a topology manager is disclosed. The network includes a plurality of sensors each having a sensor ID, and the method includes performing the following steps at each of the plurality of sensors: receiving a stream of packets and identifying a topology trace packet in the stream of packets, wherein the topology trace packet has a destination address and an ID of a previous sensor, including the sensor ID in the topology trace packet, sending the topology trace packet to the destination address, forming a report message so as to include the sensor ID, the previous sensor ID, sending the report to the topology manager; and, providing network addresses of adjacent nodes to the topology manager.

Method and system for collecting topology information

Systems and methods for managing communication in an IP network between a server and a probe that does not maintain an IP address by selectively restricting which IP addresses that are identified as active in the network may be borrowed for the probes. Restriction of IP addresses may include a black list to exclude specific IP addresses, a white list from which IP addresses can be drawn or both. This permits control over which IP addresses may be borrowed by probes, reducing false alarms, alerts or other network concerns caused by unexpected IP traffic on a particular IP address in the network.

Selective IP address allocation for probes that do not have assigned IP addresses

A method of monitoring packet traffic is provided. The method includes: at a first access point, capturing portions of traffic packets passing therethrough separated by time intervals; encapsulating the portions of traffic packets thereby forming encapsulated packets and adding timestamps to the encapsulated packets so as to preserve the portions of traffic packets and information related to the time intervals; transmitting the encapsulated packets over a network; decapsulating the encapsulated packets so as to obtain replay packets and the capture timestamp, wherein the replay packets include the portions of the traffic packets; and, transmitting the replay packets separated by the time intervals, wherein the timestamps are used to reproduce the time intervals so as to imitate the traffic packets passing through the first access point.

Method for time aware inline remote mirroring

A method of monitoring packet traffic is provided. The method includes: at a first access point, capturing portions of traffic packets passing therethrough separated by time intervals; encapsulating the portions of traffic packets thereby forming encapsulated packets and adding timestamps to the encapsulated packets so as to preserve the portions of traffic packets and information related to the time intervals; transmitting the encapsulated packets over a network; decapsulating the encapsulated packets so as to obtain replay packets and the capture timestamps, wherein the replay packets include the portions of the traffic packets; and, transmitting the replay packets separated by the time intervals, wherein the timestamps are used to reproduce the time intervals so as to imitate the traffic packets passing through the first access point.

In one embodiment, a computer-implemented method for graphically indicating a progress of multiple parts of a task involves 1) dividing the task, as a whole, into a plurality of work units, and 2) as the task is executed, and for each of the work units, separately indicating, via a graphical user interface, whether work was performed for each task part during each work unit. Other embodiments are also disclosed.

Method and apparatus for graphically indicating the progress of multiple parts of a task

A system and method to test voice quality over a call path on a packet based network. A call signaling path is established between a first voice quality tester (VQT) and a second VQT. The call signaling path includes one among multiple call signaling stacks, each operating according to a particular call signaling protocol. By using a graphical user interface (GUI), a user can select the call signaling stack to be used, and change between call signaling stacks in real time.

Method of switching between multiple call signaling protocol stacks in a voice quality tester and apparatus using same

Methods and devices for evaluating audio quality in a network are described. First and second audio samples are compared. The first audio sample includes a reference signal that is transmitted through a path on the network. The second audio sample includes the reference signal after it has traveled the path and is received. In addition, network performance while the reference signal travels the path is monitored. The results of the comparison are correlated with network performance statistics derived from the monitoring.

Methods and devices for correlating audio sample comparisons and network performance statistics

A system and method is provided for rendering data indicative of delays associated with enabling and/or disabling an analog-to-digital conversion system employed by a telephony communication network. The system of the present invention utilizes a display device and an interface manager. The interface manager receives data indicative of power levels at various frequencies and times of signals received by a transceiver that is communicating via the conventional telephony communication network. The interface manager then renders a graphical display via the display device based on the received data. The graphical display may include clusters, in which each of the clusters is associated with a particular range of power levels. By analyzing the clusters, a user can determine the delays associated with enabling and/or disabling the analog-to-digital conversion system. The graphical display may also include indicators that may be used to determine the foregoing delays.

Growing community of inventors

Colorado Springs, CO, United States of America

Samuel M Bauer