Patent ID: 7590072
Filing Date: 2009-09-15
Classification: H04L

Abstract:
1. In a communication network provided with a Network Management System (NMS) maintaining a network topology map and one or more Element Management Systems (EMS) that manage a plurality of network entities each EMS maintaining a respective EMS topology map, a method of synchronizing said network topology map with a respective EMS topology map, comprising: receiving, at said NMS, a user request for a hierarchy altering operation, said user request comprising topology change data for at least one of said network entities; verifying validity of said user request with respect to each EMS against a set of rules and limitations associated with said respective EMS, and, after said user request has been validated; altering said network topology map according to said topology change data in said user request; automatically sending, from said NMS to said EMS, a change request comprising said topology change data; updating said EMS topology map according to said change request; automatically propagating said topology change data from said EMS to said NMS; preventing an administrator from making any topological changes to an added network entity on said EMS; and making said NMS responsible for any future topological changes on said EMS.