Network monitoring system, monitored controller, and monitoring controller
First Claim
1. A network monitoring system which employs a plurality of monitoring stations to observe status of controllers on an ATM network, comprising:
- (a) a monitored controller being observed by said plurality of monitoring stations, comprising connection set-up means for establishing a point-to-multipoint connection over the ATM network, and status message transmission means for transmitting status messages through the point-to-multipoint connection upon detection of a status change in said monitored controller;
(b) a broadcast unit which broadcasts the status messages through the point-to-multipoint connection; and
(c) a plurality of monitoring controllers coupled to the plurality of monitoring stations, each being a destination of the point-to-multipoint connection, and each comprising status message format conversion means for converting the status messages received from said broadcast unit to a format suitable for the monitoring station being coupled thereto.
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Abstract
A network monitoring system which alleviates workloads imposed on network devices being monitored, reduces network traffic, improves the quality of data transmission, and increases the efficiency of monitoring activities. The system comprises a connection set-up unit which establishes a point-to-multipoint connection between a network device to a plurality of monitoring stations. This point-to-multipoint connection passes through a broadcast unit that serves as a branching point of multiple connections. A status message transmission unit, disposed in the network device, transmits status messages over the point-to-multipoint connection when a status change is detected in the network device. The broadcast unit distributes these messages toward a plurality of monitoring stations in the system. Before reaching the destinations, the status messages are subjected to a status message format conversion unit so as to make their data format suitable for the recipient monitoring stations.
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Citations
15 Claims
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1. A network monitoring system which employs a plurality of monitoring stations to observe status of controllers on an ATM network, comprising:
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(a) a monitored controller being observed by said plurality of monitoring stations, comprising connection set-up means for establishing a point-to-multipoint connection over the ATM network, and status message transmission means for transmitting status messages through the point-to-multipoint connection upon detection of a status change in said monitored controller;
(b) a broadcast unit which broadcasts the status messages through the point-to-multipoint connection; and
(c) a plurality of monitoring controllers coupled to the plurality of monitoring stations, each being a destination of the point-to-multipoint connection, and each comprising status message format conversion means for converting the status messages received from said broadcast unit to a format suitable for the monitoring station being coupled thereto. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A monitored controller being observed by a plurality of monitoring stations in a network monitoring system for an ATM network, comprising:
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connection set-up means for establishing a point-to-multipoint connection on the ATM network to reach the plurality of monitoring stations via a broadcast unit; and
status message transmission means for transmitting status messages through the point-to-multipoint connection upon detection of a status change in the monitored controller. - View Dependent Claims (9, 10, 11, 12)
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13. A monitoring controller coupled to a monitoring station in a network monitoring system for an ATM network, comprising:
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status message reception means for receiving status messages sent from a plurality of network devices being monitored, through a point-to-multipoint connection established on the ATM network;
status message format conversion means for convening the status messages received by said status message reception means to a format suitable for the monitoring station being coupled thereto; and
status message transmission means for transmitting to the monitoring station the status messages converted by said status message format conversion means. - View Dependent Claims (14, 15)
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Specification