Dual lane connection to dual redundant avionics networks
First Claim
1. A remote data concentrator (RDC) for an avionics Ethernet network, said RDC comprising:
- a line replaceable unit (LRU) input;
a first processing lane directly coupled to said LRU input, said first processing lane having a first output;
a second processing lane directly coupled to said LRU input, said second processing lane having a second output; and
a processor coupled to said first processing lane and said second processing lane and configured to route data from at least one of said first output and said second output to the Ethernet network, said processor comprising a link coupling said first processing lane with said second processing lane, said link configured to transfer data between said first processing lane and said second processing lane, wherein the first processing lane and the second processing lane process universal data protocol (UDP) messages in parallel, and wherein each processing lane synchronizes a virtual link sequence number for each UDP message transmitted between the first processing lane or the second processing lane and the Ethernet network.
1 Assignment
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Accused Products
Abstract
Apparatus and systems are provided for dual redundant avionics networks wherein a remote data concentrator (RDC) includes, but is not limited to, a line replaceable unit (LRU) input, a first processing lane coupled to the LRU input, a second processing lane coupled to the LRU input, and a processor coupled to the first processing lane and the second processing lane. The first processing lane has a first output. The second processing lane has a second output. The processor has a link coupling the first processing lane with the second processing lane and is configured to route data from at least one of the first output and the second output to an Ethernet. The link is configured to transfer data between the first processing lane and the second processing lane.
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Citations
19 Claims
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1. A remote data concentrator (RDC) for an avionics Ethernet network, said RDC comprising:
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a line replaceable unit (LRU) input; a first processing lane directly coupled to said LRU input, said first processing lane having a first output; a second processing lane directly coupled to said LRU input, said second processing lane having a second output; and a processor coupled to said first processing lane and said second processing lane and configured to route data from at least one of said first output and said second output to the Ethernet network, said processor comprising a link coupling said first processing lane with said second processing lane, said link configured to transfer data between said first processing lane and said second processing lane, wherein the first processing lane and the second processing lane process universal data protocol (UDP) messages in parallel, and wherein each processing lane synchronizes a virtual link sequence number for each UDP message transmitted between the first processing lane or the second processing lane and the Ethernet network. - View Dependent Claims (2, 3, 4)
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5. A dual redundant avionics network comprising:
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a first system data network (SDN) having a first SDN port; a second SDN having a second SDN port; and a remote data concentrator (RDC) end system configured to communicate with said first SDN and said second SDN, said RDC end system comprising; a first processing lane coupled to said first SDN port, said first processing lane having a first line replaceable unit (LRU) input; a second processing lane coupled to said second SDN port, said second processing lane having a second LRU input; and a processor coupled to said first processing lane and said second processing lane, said processor comprising a link coupling said first processing lane with said second processing lane, said link configured to transfer data between said first processing lane and said second processing lane, wherein the first processing lane and the second processing lane process universal data protocol (UDP) messages in parallel, and wherein each processing lane synchronizes a virtual link sequence number for each UDP message transmitted between the processing lane and either the first or the second SDN. - View Dependent Claims (6, 7, 8, 9, 10, 11, 12)
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13. A remote data concentrator (RDC) end system in an Ethernet network, the RDC end system comprising:
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a first port configured to couple to a first network in the Ethernet network; a second port configured to couple to a second network in the Ethernet network; a first processing lane coupled to said first port, said first processing lane comprising; a first input configured to receive input signals; a first output configured to transmit output signals; and a first processing unit coupled to said first input and said first output, said first processing unit configured to control data flow to said first output, to said first port, and from said first input; a second processing lane coupled to said second port, said second processing lane comprising; a second input configured to receive input signals; a second output configured to transmit output signals; and a second processing unit coupling said second input with said second output, said second processing unit configured to control data flow to said second output, to said second port, and from said second input; and a cross-lane bus coupled to said first processing unit and said second processing unit, said cross-lane bus configured to transfer data between said first processing lane and said second processing lane, wherein the data transferred on the cross-lane bus comprises one or more parameters, and wherein responsive to a failure of the first processing lane, the second processing lane transmits the input signals from the second input and sets parameters only available from the first processing lane as invalid. - View Dependent Claims (14, 15, 16, 17, 18, 19)
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Specification