Case Study : IT Infrastructure - Networking Devices & Security


DTT has its office located at Vyapar Bhawan, IP Estate, New Delhi. It has LAN infrastructure comprising of over 1000 nodes, spread across 13 Floors in the said facility. The active infrastructure that supports the LAN is from different OEMs and leads to interoperability and management issues of the said network. Absence of structured cabling, link or device level redundancy and lack of proper labeling aggravates on – going support and troubleshooting tasks. Usage of non-uniform uplink mechanisms and media converters leads to performance bottlenecks in the existing network. To add to that, most equipment used in the existing network is EOS/EOL.



Core Switch        :         Juniper - EX8200
Access Switch        :         Juniper - EX4200
Router        :         Juniper – SRX 650
Internet Firewall with IPS        :         Juniper – SRX 650
Event logging, monitoring reporting        :         Juniper – STRM 500
Network Access Control        :         Juniper – MAG 6610
Network Manager        :         Juniper – NSMXpress Appliance


Our solution was focused on providing a scalable and robust data network solution, which conformed to the principles of hierarchy, modularity, scalability, adaptability, fault tolerance, predictability, manageability and security.

Following components of IT infrastructure were proposed:


Our proposed solution helped them to derive the following benefits:

The network architecture along with the other infrastructure elements is the backbone of any future ready enterprise architecture which now spans from wired to wireless, from data and voice to convergence, from fixed end devices to mobile devices and handsets and from dedicated network elements to virtualized networks. Hence an ideal network design for an enterprise, regardless of its size, needs to conform to the principles of hierarchy, modularity, scalability, adaptability, fault tolerance, predictability, manageability and security.


The solution was designed based on the technical and architecture guidelines from Customer in terms of the number of nodes in the facility, specifications for the network devices and architecture guidelines. Based on the requirements, Inspira proposed the following network architecture.

The proposed network was a two -tier industry standard campus LAN architecture.. It consisted of Core & Access layers.

The network had secure data centre zones. These zones hosted different IT system servers, management servers and other security devices. External WAN and Internet connections terminated at data centre. These provided secure Internet access to the internal users and access to external users. This network became the backbone of entire IT operations of the enterprise.

The solution covered the major portion of IT infrastructure and laid the framework over which the software modules and applications run accomplishing the requirement and providing a unified platform for effective collaborative decision making and help in overall operations.


The network design is based on business requirements and can accommodate new and emerging technologies in a planned manner. A network infrastructure incorporates components from market leading OEMs and affords a high degree of scalability, reliability and hardware interoperability. Improved network performance due to reduced latency and unanticipated downtime.