Describe the technological features of and the role of standards in the telecommunications network equipment industry? How does technology add value for customers in this industry?

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SAIT Project                   Group C4

        

CISCO Systems and Telecom Network Equipment Industry

Describe the technological features of and the role of standards in the telecommunications network equipment industry? How does technology add value for customers in this industry?

        

Industry Background:

The networking industry started in late 1970’s with the widespread use of IBM proprietary computer architectures which used “dumb” terminals connected to the mainframe computer. As the trend towards the “distributed processing increased, the companies felt a strong need to integrate their desktop so that information can be shared. Further, the movement towards open standards in data processing and transmission gave impetus to the industry. As industry became more mature, the equipment providers which formed the core of the industry focused on two areas:

  1. Increasing the efficiency of transmission through packaging data within various protocols.
  2. Compression technologies and increasing absolute bandwidth which increases the amount of data, or the size of the data packet that can be transmitted in a given amount of time.

Network Components:

A typical data network consists of the following products:

Network Interface Card (NIC): Usually installed on desk top PCs allowing these PCs to send and receive data across corporate networks.

Hub: Central collection point for a corporate network which breaks up and recombines data signals from individual desktop machines for efficient transmission.

Switch: directs traffic between corporate hubs as well as to outside links through the router.

Router: usually the core of the corporate network: it sends packets of data between far flung corporate sites as well as outside connections via the internet

Frame Relay and Asynchronous transfer mode (ATM) Switch: Recently develop types of switches that direct data traffic across network while effectively enhancing bandwidth and transmission speed.

Remote Access Device: Handles data to/from remote or mobile sites typically over common telephones lines, using modem technology.

Modem: Most often found in homes or remote desktops; allows users access to networks through a common telephone line.

Firewall Software: Monitors data flow and prevents unauthorized access to enterprise networks.

Role of Standards in Telecommunications and Network Industry

Standards and their development provide stability and tend to lower costs. The standards played an important role in reducing uncertainty among users and stiffer price competition among manufacturers. The different stakeholders in the industry demand that product manufacturers develop products that adhere to openly published standards. This allows both enterprises and individual consumers more options in putting products together without being "locked in" with one particular manufacturer. Standardization is beneficial to the production of the content as in the delivery process itself.

An example of standard in the router technology is as follows: The IP Multicast protocol is a standard extension to the IP protocol. The IETF-recommended standard, RFC 1112, defines extensions to the IP protocol. This standard specifies the extensions required of a host implementation of the Internet Protocol (IP) to support multicasting. It also specifies the format, addressing and routing of messages on the Internet. IP Multicast allows a sender to send a single message to a group address. Any receiver that joins the network under this group address receives the message. The replication and forwarding of the message to the appropriate receivers is handled intelligently by routers within the network. All major router vendors support IP Multicast.

The current consensus is that due to the wide variety of multicast application requirements--some of which are at odds--no single multicast transport will likely be appropriate for all applications. As a result, most believe that we will eventually standardize a number of reliable multicast protocols, rather than a single one.

Adding Value through Telecommunications Network Technology:

Lower Costs through Capital Equipment Savings: Enable higher disk utilization, extending storage life and postponing new storage router purchases. With the flexibility to share storage resources as a pool, administrators can use previously wasted excess capacity on underutilized devices. Networked resources allows for backup strategies requiring less hardware. For example, where each server may have previously required its own tape drive for backup, networking resources can now help share tape libraries that reduce the amount of total enterprise equipment & expenditure required.
External NAS: Network Automated Storage extends server life by providing room for applications to grow. Being able to accommodate larger storage capacities and data sets lengthens the usable life of a server and reduces purchasing cost.                                                                        

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Lower Operating Costs through Storage Management Savings: Since personnel costs comprise such a large portion of the ongoing IT budget, reducing intangible costs such as storage management trims operating costs significantly. With networked storage, centralized management eliminates the need for multiple software packages, facilities easier maintenance, and allows each administrator to manage more data.

Reduced Downtime through Availability and Protection: This covers the primary defensive strategies including clustered configurations for networked storage enabling reduced downtime to keep mission-critical revenue generating applications running around the clock. Additionally, from a data protection standpoint, storage routers facilitate a host of backup and recovery options such ...

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