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Office ICT Infrastructure Implementation

Often ICT Infrastructure design is not given sufficient focus which can result in more expensive capital and running costs, or the network needing constant modification during its lifetime. A wired network is best suitable option in case a client's requirement is a reliable and a robust network operational in all conditions. A wireless network should be installed in a place where the primary purpose is seamless mobility and also where laying a wired network is very expensive and difficult. There are all different kinds of wireless protocols used for different types of wireless networks, but if you want to build a WLAN for your home or office the type of protocol you'll want to use is called 802.11b.

Based on the requirements and future expansions, an appropriate network platform whether wired or wireless or a combination of both of them should be selected. Basically the networks can be classified into three types:

  • Local area networks.
  • Metropolitan area networks.
  • Wide area networks.

There are different types of transmission media may be employed as the basis of a communication channel and they are Two-wire open lines, twisted pair lines, Coaxial cable, Optical Fibre. The architectures that are commonly used in the network design are mentioned below:

Hierarchical Networks:

This generally involves a high speed computer which is serviced by a number of lower power computers which are in turn serviced by a number of lower power computers (typically microprocessors).

Bus:

Ethernet is a proprietary name for a Bus network, originally developed by Xerox, Intel and DEC. In its simplest form it comprise of a single communication channel to which all computers are connected. Fast Ethernet and Giga bit Ethernet are higher speed versions of the basic Ethernet.

Token Ring:

A ring operates on a technique known as token passing. A small frame circulates around the ring all the times ad contains the token and the node whishing to transmit should first acquire the token to send the data. FDDI is a fibre optic version of the token ring standard with a few important modifications. This mainly consists of counter rotating rings, known as primary ring and secondary ring. Data usually travels though the primary ring with the secondary ring acting as a back-up. FDDI uses Time Division multiplexing to break up the available 100 Mpbs into 17 separate channels, one at 765kbps and 16 wide band channels at 6.144 Mbps. The 765kbps channel is reserved for token passing. The 16 wide band channels can be designated as either token-passing data channels or as separate connection oriented virtual circuits for speech or video (or other time critical data).

Another MAN standard like FDDI is DQDB (Distributed Queue Bus) and it consists of two parallel, unidirectional buses snake through a city, with stations attached to both buses in parallel. ATM (asynchronous transfer mode) is packet switched technology, originally developed for use in wide area network. It uses small, 53 byte length packets and operates on a connection oriented basis that is a switched virtual circuit is established prior to any transmission. It was originally developed as the basis for switching and routing in Broadband ISDN networks but has found some application in LAN's as a high speed backbone and this is used especially for critical transmissions.

ICT Design and implementation services

Web Technologies ICT design and implementation services ensure effective deployment of IT infrastructure and assist organisations to run efficiently. ICT Services provide implementation and support in the following areas:

  • BPOS/Office 365 migrations
  • Server installs
  • Desktop rollouts
  • Office network setup
  • Networking implementation services - open mesh project
  • Ad hoc support services
  • Internet service provider
  • Email services
  • Ad hoc computer repairs
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