The Hierarchical Star Architecture is the most traditional enterprise network topology.
In a traditional hierarchical star cabling-system architecture, each node is connected to a central hub with a point-to-point connection. Typically fiber cable runs from the main equipment room to a telecom room full of crossconnect or interconnect equipment.
It's simplicity and ease of implementation makes it an attractive option for network managers. It remains one of the most popular topologies for Enterprise LANs.
The disadvantages are that network operation depends on the functioning of the central hub, so if that goes down, so does the rest of the network. In addition, because it was designed to support copper cabling, it does not take advantage of the long link distances supported by fiber and requires more cable than other network architectures.