Virtual private networks within a packet network having a mesh topology
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United States of America Patent
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Apr 29, 2008
Grant Date -
May 5, 2005
app pub date -
Oct 29, 2003
filing date -
Oct 29, 2003
priority date (Note) -
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status (Latency Note)
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Abstract
A method of creating virtual private networks within a packet network having a mesh topology. A flexible virtual private network is established based upon a topology calculated at each member node. The network is set up using label switched paths between adjacent member nodes according to the topology. The topology may be a ring or a tree. A virtual ring is created as a closed-loop sequence of label switched paths established between a set of member nodes. The closed-loop sequence of label switched paths is established by the member nodes as each member node connects to its neighbours on the virtual ring. The virtual ring may expand by adding member nodes and may contract by removing member nodes. A member node's position on the virtual ring may be established using a sortable value.
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