Relay System and Switching Device
First Claim
1. A relay system comprising:
- a first redundancy device made up of a first switching device and a second switching device; and
a second redundancy device made up of a third switching device and a fourth switching device and connected to the first redundancy device,wherein the first switching device and the second switching device each have a first port group made up of one or a plurality of first ports, a second port and a bridge port, the first switching device and the second switching device being connected to each other by a communication line via the bridge ports,the third switching device has a first link with the first port group of the first switching device and has no link with the second switching device,the fourth switching device has a second link with the first port group of the second switching device and has no link with the first switching device, anda communication between the first redundancy device and the second redundancy device is performed through the first link when the first link has no fault, and the communication is performed through the second link when the first link has a fault and the second link has no fault.
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Accused Products
Abstract
A first redundancy device and a second redundancy device connected to the first redundancy device are provided. A third switching device has a first link with a first port group of the first switching device and has no link with the second switching device. A fourth switching device has a second link with a first port group of the second switching device and has no link with the first switching device. Here, a communication between the first redundancy device and the second redundancy device is performed through the first link when the first link has no fault, and the communication is performed through the second link when the first link has a fault and the second link has no fault.
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Citations
13 Claims
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1. A relay system comprising:
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a first redundancy device made up of a first switching device and a second switching device; and a second redundancy device made up of a third switching device and a fourth switching device and connected to the first redundancy device, wherein the first switching device and the second switching device each have a first port group made up of one or a plurality of first ports, a second port and a bridge port, the first switching device and the second switching device being connected to each other by a communication line via the bridge ports, the third switching device has a first link with the first port group of the first switching device and has no link with the second switching device, the fourth switching device has a second link with the first port group of the second switching device and has no link with the first switching device, and a communication between the first redundancy device and the second redundancy device is performed through the first link when the first link has no fault, and the communication is performed through the second link when the first link has a fault and the second link has no fault. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A switching device having a first port group made up of a plurality of first ports, a second port and a bridge port and connected to a different switching device via the bridge port, the switching device comprising:
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a port control unit which controls the first port group to a first state in which transmission and reception are both permitted or a second state in which transmission and reception are both prohibited in accordance with whether the first port group is set to active or standby; a mode retaining unit which retains a first mode or a second mode; and an OAM transmitting unit which transmits a RDI frame serving as one of CCM control frames based on Ethernet OAM from each of the one or the plurality of first ports constituting the first port group controlled to the second state when the first mode is retained, and transmits a CCM control frame in conformity to a standard of Ethernet OAM from each of the one or the plurality of first ports constituting the first port group controlled to the second state when the second mode is retained, wherein the first port group of the switching device is set to the standby when a first port group of the different switching device is set to the active, and the first port group of the switching device is set to the active when the first port group of the different switching device is set to the standby. - View Dependent Claims (12, 13)
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Specification