At&t Intellectual Property I, LP

At+t Corp.

Gomathi Ramachandran

Leonard Ciavattone

Alfred C Morton, Jr

Yaakov Kogan

Gangaji Maguluri

Kevin L D'Souza

William R Halloran

Network performance management includes identifying a location of a test unit, providing a test protocol to the test unit over a network, and transmitting a stream of data packets to the test unit. The network performance management also includes identifying, via the location of the test unit, a transmission path of network elements through which the stream of packets flows. The network performance management further includes tracking measurements associated with the stream of data packets transmitted to the test unit and return data packets received from the test unit. The measurements are tracked for segments associated with each of the network elements in the transmission path.

Methods, systems, and computer program products for monitoring network performance

A method, device, and program for determining states in a flow of packets are provided. A flow of transmitted packets is received. When the difference between the sequence number of the arriving packet and the next expected sequence number is equal to zero and when the TTL number of the arriving packet is equal to the TTL number of the previous packet, there is a stable state beginning with the first of the consecutively received packets. If a difference between the sequence number of an arriving packet and a next expected sequence number is greater than 1, or TTL of the arriving packet is not equal to the TTL number of the previous packet, there is a not stable state. Time between end of one stable state and start of the next stable state is the hole, and the states and holes correlate to events for analysis of the network.

Method, device, and computer program product for detecting and encoding states for accurate measurement

Monitoring of customer bandwidth demand is accomplished by comparing mean access router uplink utilization to a prescribed threshold value that is computed based upon granular measurements of uplink utilization. This provides an indication of whether customer demand is met with a statistical level of confidence. Further, the actually measured access router uplink utilization can be used to make a predictive assessment of whether to provision a new customer on the access router without adversely affecting existing customers.

Method for monitoring and meeting customer bandwidth demand in operational IP data networks

Unavailable customer bandwidth in a connectionless IP network ( ) is determined by first measuring network accessibility and network continuity (in Defects Per Million) via an accessibility measurement instrumentation device ( ) and a continuity measurement instrumentation device ( ). The accessibility and continuity measurements are combined via a mechanism ( ) to yield a service unavailability measure that is then compared to a threshold value, representing the applicable customer unavailable bandwidth specified under an service level agreement specification ( ). If the actual service unavailability exceeds the allowable unavailable customer bandwidth under the service level agreement, then an event correlation device ( ) will correlate the service unavailability measure with network fault and performance alarm information from network alarms ( ) to establish a root cause. Once the route cause is established, a trouble ticket system ( ) generates a trouble ticket to facilitate network restoration.

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Holmdel, NJ, United States of America

Gomathi Ramachandran