Mesh network bridges making operable spanning tree protocol and line fault backup protocol in optimized forwarding environment
First Claim
1. A mesh network bridge having a plurality of mesh-connecting ports to interconnect a plurality of bridges including an own bridge and other bridges as a mesh network, comprising:
- a packet transmitter/receiver which reciprocally transmits and receives packets between the plurality of bridges through the plurality of mesh-connecting ports;
a shortest path constructing unit which constructs the shortest path between the plurality of bridges through the packet transmitter/receiver; and
a STP processing unit which executes STP processing to activate a spanning tree protocol (STP) for attaching redundancy to the mesh network with the shortest path constructed between the plurality of bridges by the shortest path constructing unit.
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Accused Products
Abstract
A plurality of mesh-connecting ports interconnect a plurality of bridges including an own bridge and other bridges as a mesh network. A packet transmitter/receiver reciprocally transmits and receives packets between the plurality of bridges through the mesh-connecting ports. A shortest path constructing unit constructs the shortest path between the bridges through the packet transmitter/receiver. An STP processing unit, with the shortest path constructed between the bridges by the shortest path constructing unit, executes STP processing for activating the spanning tree protocol (STP) to provide redundancy to the mesh network. A backup processing unit, with the shortest path constructed between the bridges, continuously leaves in the mesh domain a first mesh network bridge detected a line fault, and executes the backup processing to active a back up protocol for forming a backup route in such a manner that the packet reaches a second mesh network bridge that has become unreachable by the line fault, through a third mesh bridge connected with the second mesh network bridge.
94 Citations
20 Claims
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1. A mesh network bridge having a plurality of mesh-connecting ports to interconnect a plurality of bridges including an own bridge and other bridges as a mesh network, comprising:
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a packet transmitter/receiver which reciprocally transmits and receives packets between the plurality of bridges through the plurality of mesh-connecting ports;
a shortest path constructing unit which constructs the shortest path between the plurality of bridges through the packet transmitter/receiver; and
a STP processing unit which executes STP processing to activate a spanning tree protocol (STP) for attaching redundancy to the mesh network with the shortest path constructed between the plurality of bridges by the shortest path constructing unit. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A mesh network bridge comprising a plurality of mesh-connecting ports for interconnecting a plurality of bridges including an own bridge and other bridges as a mesh network, comprising:
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a packet transmitter/receiver which reciprocally transmits and receives packets between the plurality of bridges through the plurality of mesh-connecting ports;
a shortest path constructing unit which constructs the shortest path between the plurality of bridges through the packet transmitter/receiver; and
a backup processing unit which executes backup processing to activate a backup protocol for forming a backup route in such a manner that, with the shortest path constructed between the plurality of bridges by the shortest path constructing unit, a first mesh network bridge detected a line fault is continuously left in a mesh domain, and a second mesh network bridge rendered unreachable of a packet by the line fault is reached the packet through a third mesh network bridge connected to the second mesh network bridge. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A mesh network bridge having a plurality of mesh-connecting ports to connect a plurality of bridges including an own bridge and other bridges as a mesh network, comprising:
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a packet transmitter/receiver which reciprocally transmits and receives packets between the plurality of bridges through the plurality of mesh-connecting ports;
a shortest path constructing unit which constructs the shortest path between the plurality of bridges through the packet transmitter/receiver;
a STP processing unit which executes STP processing to activate a spanning tree protocol (STP) for attaching redundancy to the mesh network with the shortest path constructed between the plurality of bridges by the shortest path constructing unit; and
a backup processing unit which executes backup process to activate a backup protocol for forming a backup route in such a manner that, with the shortest path constructed between the plurality of bridges by the shortest path constructing unit, a first mesh network bridge detected a line fault is continuously left in a mesh domain, and a second mesh network bridge rendered unreachable of a packet by the line fault is reached the packet through a third mesh network bridge connected to the second mesh network bridge. - View Dependent Claims (19, 20)
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Specification