Benefits and Constraints of Different Network Types

–

IEEE 802.3 (Ethernet): 10-Mbps Ethernet specification developed by Xerox, often used in

LANs.

–

IEEE 802.3u (Fast Ethernet) 100-Mbps Ethernet specification working at 10 times the speed

of 10-Mbps Ethernet, often used in LANs.

–

IEEE 802.3z (Gigabit Ethernet) 1000-Mbps/1-Gbps Ethernet specification that transfers data

at 1 gigabit per second (1000 Mbps). Often used in large LANs (at the core layer).

–

IEEE 802.3ae (10Gigabit Ethernet) 10,000-Mbps/10-Gbps Ethernet specification that

transfers data at 10 gigabits per second (10,000 Mbps). Often used in MANs.

–

IEEE 802.5 (Token Ring):

IEEE 802.5 is a specification that is relevant and compatible with

the Token Ring standard developed by IBM. Token Ring refers to both the IBM Token Ring

and IEEE 802.5 network deployments

.

IEEE 802.11 (Wireless LAN)

:

The IEEE 802.11 standard refers to a family of specifications

developed for wireless LAN technology. IEEE 802.11 specifies a wireless interface between a

wireless client and a base station, such as a wireless laptop and a wireless base unit or between

two wireless clients, such as between two wireless laptops.

2.3.

ISO (International Organization for Standardization)

:

–

ISO is the global alliance of national standards bodies.

–

The goal of ISO is to promote the development of standardization and related activities

around the world in order to facilitate the international exchange of goods and services and

to develop cooperation in the field of mental activity. intellectual, scientific, technological

and economic

.

2.4.

IETF (Internet Engineering Task Force):

–

IETF is the organization that sets standards for how systems communicate over the

Internet—inparticular, how protocols operate and interact.

–

The purpose of the IETF is to develop and promote Internet standards, working closely with

standard organizations of the World Wide Web Consortium (W3C) and ISO / IEC

(International Electrotechnical Commission); and specifically address the TCP / IP standards

and Internet protocol suite. This is a voluntary open standards organization that does not

require formal or informal membership. 2.5.

ISOC (Internet Society):

–

ISOC

is a professional membership society that helps set the technical standards for the

Internet.

-The purpose of ISOC is to guarantee, promote the development, expansion and use of the

Internet is most convenient for people around the world.

P2. Explain the impact of network topology, communication and bandwidth

requirements.

I. Explain the impact of network topology:

1. BUS TOPOLOGY: