E-spring (G.8032) interworking to provide access protection
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United States of America Patent
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Nov 19, 2013
Grant Date -
Mar 31, 2011
app pub date -
Sep 29, 2010
filing date -
Sep 29, 2009
priority date (Note) -
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Abstract
A method of enabling a resilient interface between a first node and a G.8032 Ethernet ring. A Link Aggregation Group (LAG) comprising respective links is provided between the first node and at least two ring nodes of the Ethernet ring. An aggregation function is instantiated at the first node, for distributing subscriber traffic to the links of the LAG in a conventional manner. A first one of the ring nodes is designated as Active, and each of the other ones of the ring nodes are designated as Inactive. At each Inactive ring node, a logical block is imposed on its respective link of the LAG, such that subscriber traffic between the first node and the Ethernet ring is routed by the aggregation function only through the respective link between the first node and the Active ring node.
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