Method of constructing the path information of a network management system
First Claim
1. A method of constructing a path in a network management system which collects data held by network elements constituting a network, uses this data to construct path information specifying a path which exists in the network, and manages the path information, said method comprising the steps of:
- transmitting a path-trace transmission value from an originating network element, which is a starting point of a path, to the next network element in response to transition to a in-service state, said path-trace transmission value having;
(1) an identifier of the originating network element;
(2) an identifier of an originating facility; and
(3) an identifier of a network element which transmits the path-trace transmission value;
changing in a network element that has received this path-trace transmission value, the identifier of (3) above to its own identifier and transmitting the resulting path-trace transmission value to the next network element;
similarly transmitting a path-trace transmission value from succeeding network elements up to a network element at an end point;
holding in each network element, as path-information constructing data, cross-connect information for specifying an incoming-side facility and an outgoing-side facility of the network element and the path-trace transmission value that has been received;
transmitting the path-information constructing data from each network element to the network management system in response to a request from the network management system; and
constructing in the network management system, path information using the cross-connect information and the path-trace transmission value contained in path-information constructing data that has been collected.
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Abstract
A network management system performs management by constructing path information which specifies a path existing in the network. An originating network element transmits a path-trace transmission value to the next network element in the network, the path-trace transmission value having (1) an identifier of the originating network element, (2) an identifier of an originating facility, and (3) an identifier of a network element which transmits the path-trace transmission value. The network element changes the identifier in (3) above to its own identifier and transmits the path-trace transmission value to the next network element. Succeeding network elements similarly transmit a path-trace transmission value up to a network element at an end point. Each network element holds cross-connect information for specifying an incoming-side facility and an outgoing-side facility of the network element and the path-trace transmission value that has been received, and transmits them to the network management system. The network management system constructs path information using the cross-connect information and the path-trace transmission value contained in path-information constructing data that has been collected.
64 Citations
7 Claims
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1. A method of constructing a path in a network management system which collects data held by network elements constituting a network, uses this data to construct path information specifying a path which exists in the network, and manages the path information, said method comprising the steps of:
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transmitting a path-trace transmission value from an originating network element, which is a starting point of a path, to the next network element in response to transition to a in-service state, said path-trace transmission value having; (1) an identifier of the originating network element; (2) an identifier of an originating facility; and (3) an identifier of a network element which transmits the path-trace transmission value; changing in a network element that has received this path-trace transmission value, the identifier of (3) above to its own identifier and transmitting the resulting path-trace transmission value to the next network element; similarly transmitting a path-trace transmission value from succeeding network elements up to a network element at an end point; holding in each network element, as path-information constructing data, cross-connect information for specifying an incoming-side facility and an outgoing-side facility of the network element and the path-trace transmission value that has been received; transmitting the path-information constructing data from each network element to the network management system in response to a request from the network management system; and constructing in the network management system, path information using the cross-connect information and the path-trace transmission value contained in path-information constructing data that has been collected. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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Specification