Auto-negotiation monitor system, repeating-transmission apparatus, and auto-negotiation monitor method used therefor
First Claim
1. An auto-negotiation monitor system for transferring local-area-network signals between opposing switches via at least one repeating-transmission apparatus and monitoring the at least one repeating-transmission apparatus and the opposing switches by a monitor apparatus, wherein the repeating-transmission apparatus comprises:
- a code discrimination block that receives the local-area-network signal transmitted from each of the opposing switches and determines whether or not a predetermined code for auto-negotiation exists by monitoring the local-area-network signal, where the auto-negotiation is performed for establishing connection between the opposing switches; and
an alarm unit for determining which of the opposing switches transmitted the predetermined auto-negotiation code that arrived earlier than the other, where the code discrimination block determines that the predetermined auto-negotiation code exists, and notifying the monitor apparatus of the determination result, as an alarm.
1 Assignment
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Accused Products
Abstract
Where each of switches opposed to each other detects optical-signal shutoff or optical-signal deterioration on the reception side of its port, the switch brings a link of the port down and outputs an auto-negotiation configuration code, as an LAN signal. Upon receiving the LAN signal transmitted from the switch, a repeating-transmission apparatus transmits the transmitted signal to an auto-negotiation monitor. The auto-negotiation monitor performs code analysis for the transmitted LAN signal. Where the auto-negotiation monitor detects that the transmitted LAN signal is the auto-negotiation configuration code, it notifies a monitor apparatus that “The switch detects a failure and the link is down.”, as an alarm.
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Citations
13 Claims
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1. An auto-negotiation monitor system for transferring local-area-network signals between opposing switches via at least one repeating-transmission apparatus and monitoring the at least one repeating-transmission apparatus and the opposing switches by a monitor apparatus,
wherein the repeating-transmission apparatus comprises: -
a code discrimination block that receives the local-area-network signal transmitted from each of the opposing switches and determines whether or not a predetermined code for auto-negotiation exists by monitoring the local-area-network signal, where the auto-negotiation is performed for establishing connection between the opposing switches; and
an alarm unit for determining which of the opposing switches transmitted the predetermined auto-negotiation code that arrived earlier than the other, where the code discrimination block determines that the predetermined auto-negotiation code exists, and notifying the monitor apparatus of the determination result, as an alarm. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A repeating-transmission apparatus that is provided between opposing switches for repeating and transferring a local-area-network signal and that is monitored by a monitor apparatus, with the opposing switches, the repeating-transmission apparatus comprising:
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a code discrimination block that receives the local-area-network signal transmitted from each of the opposing switches and determines whether or not a predetermined code for auto-negotiation exists by monitoring the local-area-network signal, where the auto-negotiation is performed for establishing connection between the opposing switches, and an alarm unit for determining which of the switches transmitted the predetermined auto-negotiation code that arrived earlier than the other, where the code discrimination block determines that the predetermined auto-negotiation code exists, and notifying the monitor apparatus of the determination result, as an alarm. - View Dependent Claims (8, 9, 10, 11)
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12. An auto-negotiation monitor method for transferring local-area-network signals between opposing switches opposed to each other via at least one repeating-transmission apparatus and monitoring the repeating-transmission apparatus and the opposing switches by a monitor apparatus, the auto-negotiation monitor method comprising the steps of:
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receiving the local-area-network signal transmitted from each of the opposing switches, determining whether or not a predetermined code for auto-negotiation performed for establishing connection between the opposing switches exists by monitoring the transmitted local-area-network signal, determining which of the opposing switches transmitted the predetermined auto-negotiation code that arrived earlier than the other, where the existence of the predetermined auto-negotiation code is determined, and notifying the monitor apparatus of the determination result, as an alarm. - View Dependent Claims (13)
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Specification