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US 6,320,860 B1Granted
Method of providing ATM path switched ring functionality
AssigneeAlcatel
InventorClaude M. Hurlocker
Life of this patent
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Abstract
ATM path switched ring switching is based on a ring segment BIP. An ATM VP ring segment is defined as originating at an ATM VP ring input and terminating at an ATM VP ring output. A ring segment BIP is composed of the path BIP error counts of multiple SONET/SDH paths from the ring segment input to the ring segment output.
Claims2
Selection method for selecting a path in an asynchronous transfer mode (ATM) unidirectional path switched ring, comprising the steps of:
- defining ring segments as different ring paths originating at a same ATM virtual path (VP) ring input and terminating at a same ATM VP ring output wherein a ring segment includes all ring nodes from the ring input to the ring output;
- determining a preferred ring segment according to a criterion that is independent of cell traffic rate;
- and
- at said same ATM VP ring output, group switching all virtual paths which transit this selected ring segment.
1 more element
Dependencies are inferred from the claim text.