G.8032 ethernet multiple fault recovery mechanisms
First Claim
1. A method, comprising:
- detecting a failure on both ports of a major ring at a network element that has an interconnecting sub-ring terminating thereon, wherein the failure is a single event that simultaneously causes a failure on both ports, and wherein both ports are contained in a same module and the failure affects the same module;
causing a block at an associated sub-ring termination port of the interconnecting sub-ring responsive to the failure on both the ports of the major ring; and
monitoring the failure and clearing the block responsive to a recovery of one or both ports from the failure.
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Accused Products
Abstract
A method, network element, and network provide detecting a failure on both ports of a major ring at a network element that has an interconnecting sub-ring terminating thereon; causing a block at an associated sub-ring termination port of the interconnecting sub-ring responsive to the failure on both the ports of the major ring; and monitoring the failure and clearing the block responsive to a recovery of one or both ports from the failure. The method, network, and network element include G.8032 multiple concurrent or simultaneous fault recovery mechanisms that traffic being transported between an interconnected major ring and a sub-ring to be successfully delivered in the event of dual concurrent faults on the major ring.
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Citations
19 Claims
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1. A method, comprising:
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detecting a failure on both ports of a major ring at a network element that has an interconnecting sub-ring terminating thereon, wherein the failure is a single event that simultaneously causes a failure on both ports, and wherein both ports are contained in a same module and the failure affects the same module; causing a block at an associated sub-ring termination port of the interconnecting sub-ring responsive to the failure on both the ports of the major ring; and monitoring the failure and clearing the block responsive to a recovery of one or both ports from the failure. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A network element, comprising:
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a west major ring port and an east major ring port each associated with a major ring; a sub-ring termination port associated with a sub-ring interconnected with the major ring; and circuitry configured to; detect a failure affecting both the west major ring port and the east major ring port, wherein the failure is a single event that simultaneously causes a failure on both the west major ring port and the east major ring port, and wherein both the west major ring port and the east major ring port are contained in a same module and the failure affects the same module; cause a block at the sub-ring termination port; and monitor the failure and clear the block responsive to a recovery of one or both of the west major ring port and the east major ring port from the failure. - View Dependent Claims (8, 9, 10, 11, 12, 13)
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14. A network, comprising:
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a major ring comprising a first interconnection node and a second interconnection node; and a sub-ring interconnected to the major ring through the first interconnection node and the second interconnection node; wherein, responsive to a multiple concurrent failure at one of the first interconnection node and the second interconnection node affecting traffic between the major ring and the sub-ring, the one of the first interconnection node and the second interconnection node is configured to cause a block on a port terminating the sub-ring, wherein the failure is a single event that simultaneously causes the multiple concurrent failure of two ports at a same node, and wherein the two ports are contained in a same module and the failure affects the same module. - View Dependent Claims (15, 16, 17, 18, 19)
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Specification