Arrangement and method relating to network management
First Claim
1. A network management system for management of a traffic network comprising a wired network backbone and a wireless network backbone comprising a plurality of relay nodes comprising wireless routers, some of which acting as gateways to the wired backbone network and some of which acting as relay bridge routers supporting access of a number of access networks, said management system comprising a number of management stations arranged in a distributed manner and adapted to handle sub-networks of said traffic network,wherein the management system comprises a logical multilevel hierarchical overlay network, with a top or central manager, based on the infrastructure of the traffic network and adapted to use the relay nodes as management stations, the management system comprises a grouping processor that performs a grouping process by arranging network nodes, comprising the relay nodes, in groups or clusters, each with a cluster head, on different hierarchical levels, and further comprising a grouping controller that controls the grouping and allocation of cluster heads based on a number of grouping constraints given by one or more criteria to be fulfilled at each hierarchical level, a criteria calculator that calculates the criteria based on given metrics, and a modelling and verification processor that models the constraints and verifies fulfilment of said constraints at each hierarchical level.
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Abstract
A traffic network having a wired as well as a wireless network backbone is managed. The wireless network backbone has relay nodes having wireless routers, some acting as gateways to the wired backbone network and some as relay bridge routers for access network access. A management system has a logical multilevel hierarchical network overlying the traffic network. It is adapted to use the relay nodes as management stations. It performs a grouping process by arranging network nodes, including the relay nodes, in groups, each with a cluster head, on different hierarchical levels. A grouping controller controls the grouping and allocation of cluster heads based on a number of grouping constraints given by one or more criteria to be fulfilled at each hierarchical level. The criteria are calculated based on given metrics, the constraints are modeled, and fulfillment of the constraints is verified at each hierarchical level.
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Citations
25 Claims
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1. A network management system for management of a traffic network comprising a wired network backbone and a wireless network backbone comprising a plurality of relay nodes comprising wireless routers, some of which acting as gateways to the wired backbone network and some of which acting as relay bridge routers supporting access of a number of access networks, said management system comprising a number of management stations arranged in a distributed manner and adapted to handle sub-networks of said traffic network,
wherein the management system comprises a logical multilevel hierarchical overlay network, with a top or central manager, based on the infrastructure of the traffic network and adapted to use the relay nodes as management stations, the management system comprises a grouping processor that performs a grouping process by arranging network nodes, comprising the relay nodes, in groups or clusters, each with a cluster head, on different hierarchical levels, and further comprising a grouping controller that controls the grouping and allocation of cluster heads based on a number of grouping constraints given by one or more criteria to be fulfilled at each hierarchical level, a criteria calculator that calculates the criteria based on given metrics, and a modelling and verification processor that models the constraints and verifies fulfilment of said constraints at each hierarchical level.
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17. A method for managing a traffic network comprising a wired network backbone and a wireless network backbone comprising a plurality of relay nodes comprising wireless routers, some of which acting as gateways to the wired backbone network and some of which comprising relay bridge routers for access of access networks, said method comprising the step of:
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arranging a number of management stations in a distributed manner to handle sub-networks of said traffic network, wherein the arranging step comprises; arranging the management system as a logical, hierarchical network overlying said traffic network; using the infrastructure of the traffic network defining the relay nodes as management stations, by defining a number of metrics representative of the traffic network characteristics to set up criteria; performing, at different levels, a grouping process by arranging network nodes in groups or clusters; for each group, on each level, selecting an overlying cluster head, and in the top layer providing a central manager, said grouping process comprising; modelling a number of constraints based on said criteria; verifying fulfilment of said constraints at each hierarchical level. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25)
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Specification