Method for controlling forwarding quality in a data network
Method and a computer program product for controlling the forwarding quality in a data network including a measurement manager elements for performing end-to-end measurements between nodes in the data network and a Network Resource Manager, NRM, including elements for obtaining information of the network topology. The method includes the steps of: transferring the obtained information of the network routing topology from the NRM to the measurement manager or transferring a result of the performed end-to-end measurements from a measurement manager to the NRM, and combining the end-to-end measurements and the obtained information of the network routing topology into a first information set in order to detect correlated and uncorrelated paths.
1 . Method for controlling the forwarding quality in a data network comprising a measurement manager ( 104 ) comprising means for performing end-to-end measurements between nodes in said data network and a Network Resource Manager, NRM, ( 102 ) comprising means for obtaining information of the network topology, the method is characterised in that it comprises the steps of:
transferring ( 501 ) the obtained information of the network routing topology from the NRM to the measurement manager or transferring a result of the performed end-to-end measurements from a measurement manager to the NRM, and
combining ( 502 ) said end-to-end measurements and said obtained information of the network routing topology into a first information set in order to detect correlated and uncorrelated paths.
2 . Method according to claim 1 , comprising the further step of:
combining said first information set with information on data flow presence at individual out-interfaces.
3 . Method according to claim 1 , comprising the further step of:
scheduling the transfer of the obtained information of the network routing topology over time or initiating the transfer of the obtained information of the network routing topology periodically.
4 . Method according to claim 1 , comprising the further step of:
scheduling the transfer of the result of the performed end-to-end measurements over time or initiating the transfer of the result of the performed end-to-end measurements periodically.
5 . Method according to claim 1 , comprising the further step of:
requesting the transfer of the obtained information of the network routing topology explicitly by a master manager such as a measurement manager.
6 . Method according to claim 1 , comprising the further step of:
requesting the transfer of the result of the performed end-to-end measurements explicitly by a master manager such as an NRM.
7 . Method according to claim 1 , comprising the further step of:
triggering the transfer of the obtained information of the network routing topology by specific events in a slave manager such as the NRM defined by a master manager such as the measurement manager.
8 . Method according to claim 1 , comprising the further step of:
triggering the transfer of the result of the performed end-to-end measurements by specific events in a slave manager such as the measurement manager defined by a master manager such as the NRM.
9 . A computer program product directly loadable into the internal memory of a computer within one or more nodes in a data network, comprising the software code portions for performing the steps of claim 1 .
10 . A computer program product stored on a computer usable medium, comprising readable program for causing a computer, within one or more nodes in a data network to control an execution of the steps of claim 1 .
11 . Method according to claim 2 , comprising the further step of:
scheduling the transfer of the obtained information of the network routing topology over time or initiating the transfer of the obtained information of the network routing topology periodically.
12 . Method according to claim 2 , comprising the further step of:
scheduling the transfer of the result of the performed end-to-end measurements over time or initiating the transfer of the result of the performed end-to-end measurements periodically.
13 . Method according to claim 2 , comprising the further step of:
requesting the transfer of the obtained information of the network routing topology explicitly by a master manager such as a measurement manager.
14 . Method according to claim 2 , comprising the further step of:
requesting the transfer of the result of the performed end-to-end measurements explicitly by a master manager such as an NRM.
15 . Method according to claim 2 , comprising the further step of:
triggering the transfer of the obtained information of the network routing topology by specific events in a slave manager such as the NRM defined by a master manager such as the measurement manager.
16 . Method according to claim 2 , comprising the further step of:
triggering the transfer of the result of the performed end-to-end measurements by specific events in a slave manager such as the measurement manager defined by a master manager such as the NRM.