Systems and methods for mesh restoration in networks due to intra-node faults
AssigneeCiena Corporation
InventorsChoudhury A. Al Sayeed, Dominic Richens
Life of this patent
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Abstract
Systems and methods are in a node in a network utilizing a control plane for triggering mesh restoration due to intra-node faults, and include monitoring at least one channel at a degree at a plurality of degrees associated with the node; detecting a fault on the at least one channel, wherein the fault is an intra-node fault upstream of the degree; and transmitting a channel fault indicator downstream of the fault to at least one downstream node along a path of the faulted channel, wherein restoration is triggered based on the channel fault indicator.
Claims27
A method implemented in a node in a network utilizing a control plane for triggering mesh restoration due to an intra-node fault, the method comprising:
- monitoring at least one channel at a degree at a plurality of degrees associated with the node;
- detecting a fault on the at least one channel, wherein the fault is an intra-node fault upstream of the degree;
- and
- transmitting a channel fault indicator downstream of the fault to at least one downstream node along a path of the faulted channel, wherein restoration is triggered based on the channel fault indicator,
- wherein the fault is an intra-node fault that affects degree-to-degree connectivity and comprises any of a fiber fault, a power failure on a shelf or on active components of an associated degree, and a loss of communication with a control plane processor, and
- wherein the channel fault indicator includes information related to the intra-node fault to identify the intra-node fault by the control plane.
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An apparatus disposed in a node in a network utilizing a control plane for triggering mesh restoration due to an intra-node fault, the apparatus comprising:
- circuitry configured to monitor at least one channel at a degree of a plurality of degrees associated with the node;
- circuitry configured to detect a fault on the at least one channel, wherein the fault is an intra-node fault upstream of the degree;
- and
- circuitry configured to cause transmission of a channel fault indicator downstream of the fault to at least one downstream node along a path of the faulted channel, wherein restoration is triggered based on the channel fault indicator,
- wherein the fault is an intra-node fault that affects degree-to-degree connectivity and comprises any of a fiber fault, a power failure on a shelf or on active components of an associated degree, and a loss of communication with a control plane processor, and
- wherein the channel fault indicator includes information related to the intra-node fault to identify the intra-node fault by the control plane.
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An apparatus disposed in a node in a network utilizing a control plane for triggering mesh restoration due to an intra-node fault, the apparatus comprising:
- circuitry configured to monitor at least one channel at a degree of a plurality of degrees associated with the node;
- circuitry configured to detect a fault on the at least one channel, wherein the fault is an intra-node fault upstream of the degree;
- circuitry configured to cause transmission of a channel fault indicator downstream of the fault to at least one downstream node along a path of the faulted channel, wherein restoration is triggered based on the channel fault indicator;
- circuitry configured to receive a second channel fault indicator from an upstream node for a second channel;
- and
- circuitry configured to cause transmission of the second channel fault indicator downstream of the second fault to at least one remaining downstream node along a path of the second faulted channel and suppressing a subsequent channel fault indicator from the node.
Dependencies are inferred from the claim text.