Hewlett-packard Development Company, L.P.

Hewlett-packard Company

David M Rhodes

Kam Chooi Wong

Srikanth Natarajan

Darren D Smith

Anthony Paul Michael Walker

James D Mundo

Peter C Zwetkof

Russell Huonder

John J Szlendak

David H Rosenberg

Router misconfiguration diagnosis is disclosed. A notification of a routing failure between a first node and a second node is received. A first interface associated with the first node is identified, and a second interface associated with the second node is identified. A first management information value and a second management information value, specific to a routing protocol, are determined. Matching status is determined between the first and second management information values. A diagnostic message is generated responsive to the notification.

Router misconfiguration diagnosis

A method and system for reducing fault analysis times in a network having a plurality of pollable objects. Poll responses are received from pollable objects, priorities are assigned to each received poll response in accordance with one or more of a received poll response value, a pollable object status and a type of pollable object, and the assigned priorities are processed and to determine any fault locations, wherein a pollable object with a higher priority is processed before a second pollable object with a lower priority. A status manager is operable to receive poll responses from one or more of the pollable objects, a status analyzer is operable to assign, in conjunction with one or more analyzers, priorities to each received poll response in accordance with the received poll response value, a pollable object status and a type of pollable object, and analyzers coupled the status analyzer use the assigned priorities and the corresponding received poll responses to determine a fault location.

Priority-based network fault analysis

A method and system for locating a fault in a network. According to the system, an address analyzer and interface analyzer of a network manager of the network detect that there is a failure associated with a node of the network, a node analyzer of the network manager determines if the node responds to a poll, and if the node does not respond to the poll, a neighbor analyzer of the network manager models the failure, further comprising determining a number and a polling of a plurality of neighbor nodes of the node and assigning the fault in accordance with the number and the polling of the plurality of neighbor nodes According to the method, in response to a node having one or more of one or more addresses and one or more interfaces that fail to respond to a poll, polling the node and polling a plurality of neighbor nodes of the node and assigning the fault in accordance with the polling of the node and a number and the polling of the plurality of neighbor nodes.

Method and system for network fault analysis

A method for tracking the remaining useful life of a magnetic data storage tape. The tape is checked to determine if it is formatted so that an indication of the cumulative number of end-to-end passes performed on the tape can be maintained on the tape. The indication of the number of passes is initialized if the tape has not been previously written, and is maintained to reflect the number of end-to-end passes that have been performed on the tape. That information is then ultimately transferred to the user in a descriptive form that indicates the amount of use incurred by the tape with respect to the recommended useful life of the tape, as recommended by the tape manufacturer in terms of the total number of end-to-end passes performed on the tape.

Tracking the remaining useful life of a magnetic data storage tape

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Loveland, CO, United States of America

David M Rhodes