Avoiding unnecessary RSVP-based preemptions
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United States of America Patent
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Apr 30, 2013
Grant Date -
Mar 25, 2010
app pub date -
Nov 16, 2009
filing date -
May 20, 2005
priority date (Note) -
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status (Latency Note)
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Abstract
In one embodiment, a path request message for a new data flow is received at a network node. The path request message indicates resources needed to accommodate the new data flow. The resources needed to accommodate the new data flow are compared to an amount of available resources at the network node. Provided there are sufficient available resources at the network node to accommodate the new data flow, the resources needed to accommodate the new data flow are associated with a held resources state. Subsequently, a reservation request message is received at the network node. The reservation request message requests resources for the new data flow. A determination is made that the requested resources correspond to resources associated with the held resources state. The requested resources are removed from the held resources state and reserved for the new data flow.
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