About
Overview The ITRM Cell serves as the primary hub for centralized computing and network administration at the institute. Working in close coordination with various academic departments, the cell manages the extensive campus-wide Local Area Network (LAN). This network infrastructure supports approximately 5000 users across the campus through both high-speed wired and wireless connections. The backbone of this system is a 1 Gbps fiber optic network that interconnects all campus buildings while providing department-specific VLANs.
Core Services and Responsibilities The ITRM Cell provides a robust suite of technical services, including:
- Centralized Authentication: Managing internet access via a captive portal, ensuring secure, individual login credentials for faculty, staff, and the entire student body throughout the campus.
- Local Information Portal: Maintaining a local web server that hosts a captive welcome page, displaying essential CIT-related announcements, event details, and internal information.
- Hardware Support: Providing dedicated troubleshooting and comprehensive maintenance for computer hardware across the institution.
- Network Infrastructure: Overseeing the implementation, maintenance, and repair of both wired (Internet) and wireless (Wi-Fi) LAN services.
Network Architecture and Security
- The institute’s connectivity is powered by a (1:1) dedicated leased line through an established Internet Service Provider (ISP). To ensure a secure digital environment, network security is managed via a SOPHOS UTM appliance. Furthermore, centralized user authentication for internet browsing is fully integrated with ADS Users.
- The LAN is engineered with a full-duplex Gigabit Ethernet backbone, delivering an aggregate bandwidth of 1 Gbps. All building-level switches are linked through underground Optical Fiber Cable (OFC) using single-mode fiber technology.
Key Technical Features
The campus backbone network is defined by the following specifications:
- A high-speed 1 Gbps Fiber Optic Backbone.
- Advanced Gigabit Routing Switches.
- A reliable three-tier architecture, consisting of Core, Distribution, and Edge switches.
- Departmental and building-level 100/1000 Mbps Manageable Switches featuring Layer 3 switching capabilities.
- High-quality UTP CAT 6 Cabling throughout the infrastructure.
- Ubiquitous internet connectivity reaching every client PC.
- Comprehensive Wi-Fi Facility.
Currently, wireless connectivity is strategically deployed across the Main Building Block, IT Block, Library Block, and the Hostel Office, managed through an HP Controller and HP Access Points.
Hardware Inventory
The ITRM Cell utilizes industry-standard hardware to maintain network stability, including:
- CISCO L3 Manageable Switch
- CISCO L2 Manageable Switch
- SOPHOS UTM Network Security Appliance
- HP Wi-Fi Controller and HP Access Points
- IBM Tower Server X3100 M4
- IBM Server Blade (3 Units)
- Lenovo Rack Server
CIT 1 Gbps Network Layout Diagram (The detailed schematic illustrates the 1 Gbps fiber interconnections and VLAN distributions across the campus buildings.)
GBPS Network Layout Diagram
