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In a multi-domain network, Topology Aggregation (TA) may be adopted to provide limited information regarding intra cluster connectivity without revealing detailed topology information. Nodes are grouped into the cluster. Every cluster has border nodes, which is used for data transmission between source and destination. The K-hop security can be used for the purpose of securing the data communication. The topologies are spanning tree and balanced tree that can be used to reduce bandwidth overhead, delivery delay and to increase throughput and packet delivery ratio.