System and methods for providing a network path verification protocol
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United States of America Patent
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Issued Date -
Nov 23, 2006
app pub date -
May 23, 2005
filing date -
May 23, 2005
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A path verification protocol (PVP) which enumerates a series of messages sent to a set of nodes, or routers, along a network path identifies connectivity and transmission characteristic attributes by defining, implementing, and analyzing path verification messages (PVMs) in a VPN environment. Typical VPN environments are characterized by service level agreements (SLAs) between service providers which specify particular service level and/or bandwidth level guarantees, typically in terms of megabits per second (MB/s) or other qualitative transfer criteria. Such guarantees are often expressed in contractual terms as Quality of Service (QoS) criteria. Configurations herein provide a mechanism for determination of paths and/or routes that satisfy a QoS or other delivery speed/bandwidth guarantee. Such a mechanism may therefore be employed to perform routing decisions for QoS based traffic. Further, such a mechanism is employable to verify QoS levels and related attributes related to contractual terms between service providers and customers.
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