RESIZING A PATH IN A CONNECTION-ORIENTED NETWORK
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United States of America Patent
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Issued Date -
Jan 16, 2014
app pub date -
Apr 18, 2011
filing date -
Feb 16, 2011
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
An existing path in a connection-oriented network requires resizing from a first size to a second size. Nodes exchange control plane signalling with other nodes which advertises available resources on links between nodes. A node on the existing path receives a request to establish a path capable of being resized to the second size. The node determines, using information acquired by the control plane signalling with other nodes, a new path between nodes capable of supporting the second size. The node signals to establish the new path and switches traffic from the existing path to the new path. The node causes the new path to be resized to the second size. Nodes exchange control plane signalling with other nodes which advertises whether a link supports resizing, such as OSPF-TE advertisements.
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