Method and device for medium-redundant operation of a terminal in a network
First Claim
1. A method for media-redundant operation of a terminal in a network, comprising:
- automatically monitoring, via a first transmission device in the terminal, which is connected to a media access controller for the terminal, a connection which is formed between the first transmission device and a network component via a first connecting medium;
producing, from the first transmission device, a failure signal if no connection or a faulty connection is found via the connecting medium during automatic monitoring of the connection, andas a reaction to the failure signal,deactivating the first transmission device via a control device which is connected to the first transmission device;
activating, via the control device, a further transmission device, which is connected to the media access controller for the terminal, with a sound physical connection being reproduced between the terminal and the network via a further connecting medium, andsending an electronic failure message by means of the further transmission device via the further connecting medium to the network for registration of the further transmission device, wherein the further network components in the network analyze the failure message and adapt their MAC address addressing tables on the basis of the failure message in such a way that data packets which are addressed to the terminal are passed on to the further connecting medium.
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Accused Products
Abstract
The invention relates to a method and device for medium-redundant operation of a terminal in a network. The device comprises: a first transmission device (6) of a physical bit transmission plane which is connected to a network component (9) via a first connection medium (8) disposed between the first transmission device (6) and a network component (9) and which can produce an error signal during automatic monitoring of link to the network component (9) if no physical link or if a defective link to the network component (9) exists; another transmission device (7) on the physical bit transmission plane, which is connected to the network (4) via another connection medium (10); and a control device (5) which is connected to the first transmission device (6) and the other transmission device (7) in order to deactivate the first transmission device (6) as a reaction to the error signal therefrom, enabling activation of the other transmission device (7) and enabling an electronic error telegram to be sent to the network (4) via the other connection medium (10) by means of the other transmission device (7). The invention also relates to a method for operating said device.
14 Citations
34 Claims
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1. A method for media-redundant operation of a terminal in a network, comprising:
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automatically monitoring, via a first transmission device in the terminal, which is connected to a media access controller for the terminal, a connection which is formed between the first transmission device and a network component via a first connecting medium; producing, from the first transmission device, a failure signal if no connection or a faulty connection is found via the connecting medium during automatic monitoring of the connection, and as a reaction to the failure signal, deactivating the first transmission device via a control device which is connected to the first transmission device; activating, via the control device, a further transmission device, which is connected to the media access controller for the terminal, with a sound physical connection being reproduced between the terminal and the network via a further connecting medium, and sending an electronic failure message by means of the further transmission device via the further connecting medium to the network for registration of the further transmission device, wherein the further network components in the network analyze the failure message and adapt their MAC address addressing tables on the basis of the failure message in such a way that data packets which are addressed to the terminal are passed on to the further connecting medium. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method for media-redundant operation of a terminal in a network comprising:
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automatically monitoring, via a first transmission device in the terminal, which is connected to a media access controller for the terminal, a connection which is formed between the first transmission device and a network component via a first connecting medium; producing, from the first transmission device, a failure signal if no connection or a faulty connection is found via the connecting medium during automatic monitoring of the connection, and as a reaction to the failure signal, deactivating the first transmission device via a control device which is connected to the first transmission device; activating, via the control device, a further transmission device, which is connected to the media access controller for the terminal, with a sound physical connection being reproduced between the terminal and the network via a further connecting medium, and sending an electronic failure message by means of the further transmission device via the further connecting medium to the network for registration of the further transmission device wherein the network component analyzes the failure message and adapts its MAC address addressing table for the media access controller for the terminal such that data packets which are addressed to the terminal are passed on to the further connecting medium. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. An apparatus for media-redundant operation of a terminal in a network comprising:
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a transmission device, which is connected to a media access controller for the terminal, in a physical bit transmission layer, with the first transmission device connected to the network component via a connecting medium which is arranged between the first transmission device and a network component, and, during automatic monitoring of a connection to the network component via the connecting medium, producing a failure signal if there is no physical connection or a faulty physical connection to the network component; a further transmission device, which is connected to the media access controller for the terminal, in the physical bit transmission layer, with the further transmission device connected to the network via a further connecting medium; and a control device which is connected to the first transmission device and to the further transmission device and, as a reaction to the failure signal, deactivates the first transmission device, activates the further transmission device, and sends an electronic failure message via the further connecting medium by means of the further transmission device into the network, wherein the failure message contains information that, upon analysis by the further network components in the network, causes the further network components to adapt their MAC address addressing tables on the basis of the failure message in such a way that data packets which are addressed to the terminal are passed on to the further connecting medium. - View Dependent Claims (16, 17, 18, 19, 20, 21, 22, 23, 24, 30)
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25. An apparatus for media-redundant operation of a terminal in a network comprising:
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a transmission device, which is connected to a media access controller for the terminal, in a physical bit transmission layer, with the first transmission device connected to the network component via a connecting medium which is arranged between the first transmission device and a network component, and, during automatic monitoring of a connection to the network component via the connecting medium, producing a failure signal if there is no physical connection or a faulty physical connection to the network component; a further transmission device, which is connected to the media access controller for the terminal, in the physical bit transmission layer, with the further transmission device connected to the network via a further connecting medium; and a control device which is connected to the first transmission device and to the further transmission device and, as a reaction to the failure signal, deactivates the first transmission device, activates the further transmission device, and sends an electronic failure message via the further connecting medium by means of the further transmission device into the network, wherein the failure message contains information that, upon analysis by the network component, causes the network component to adapt its MAC address addressing table for the terminal in such a way that data packets which are addressed to the terminal are passed on to the further connecting medium. - View Dependent Claims (26, 27, 28, 29, 31, 32, 33, 34)
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Specification