Method and apparatus for measuring one-way delay at arbitrary points in network

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United States of America Patent

PATENT NO 7519006
SERIAL NO

10797520

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Abstract

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Timestamps are inserted into trace packet expiration messages to identify delay in a network. A Time To Live (TTL) value in the trace packet is varied to intentionally cause an intermediate node in the network to discard the trace packet and send back the packet expiration message. The intermediate node sending the packet expiration message inserts a time value in the message indicating when the intermediate node received the trace packet. The time value is then used to determine the time required for the trace packet to reach the intermediate node.

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Patent Owner(s)

  • CISCO TECHNOLOGY, INC.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Wing, Daniel G San Jose , US 107 1714

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