CIT-IOE (Centre of Information Technology)

CIT:

Cit is one of the vital part of IOE. It is the central area from where the whole network of IOE is controlled. It can be said as the heart of IOE network. Different departments of IOE are interconnected in LAN and it connects with the outer world of internet via CIT. 

Internet Source:

Currently, it’s receiving 8 Mbps internet from Nepal Telecom Corporation (NTC). The bandwidth is not limited to specific department. Everyone receives the same 8 Mbps bandwidth. The band limiting device was temporarily discarded due to some problems.

Physical Medium/Reception:

CIT uses single optical fiber to receive 8 Mbps internet from NTC. Before this, it used to receive 2 Mbps internet from co-axial cable and uses two co-axial cable, totaling to 4 Mbps internet. To distribute the internet from CIT to different departments, it then uses co-axial cable.

Firewall:

Currently, there are no firewall rules set. The proxy is working as the firewall these days.

Proxy:

Current proxy of CIT is 202.70.91.13 / 10.100.0.1. New proxy will be soon introduced.

Services Provided:

CIT provides dial-up network to students. The dial up can be set be dialing to 15118.

Al3/SOI – IPV6:

This is the network provided in association with JAPAN. It’s assumed to be used for online study. For video conference. The project is yet to start officially.

Some devices used:

Optical to Ethernet media converter

CISCI 5505 series

Switch

To identify the work load of the routers, it has given some common names to the routers like, gorakhnath, Everest, proxy, DNS-2, etc.

Normally, about 1000 terminals remain open in CIT network. The server remains ON when there is light. During the loadshedding, these days, there are no backup devices for the server. So the internet is provided only in the availability of electricity.

During Entrance Exam, the traffic increases rapidly. So some devices are used to provide services only at the time of high load. 

CIT is further planning to increase Bandwidth of Internet to facilitate students.

Edit what you have remembered. Add things that I have missed, add in the comment BOX.