Bridge - network layer and routing , Computer Networking


A bridge  operation sin both  physical  and data link  layer of OSI model. At physical  layer  it works  like  repeater as it regenerates the  signal  and performs  inter connection of different  physical  media  types  such as  coaxial cable, twisted  pair work  etc. Bridges technology supports  two data link  layer  protocols called LIC ( Logical Link Control)  MAC ( Media  Access Control). Bridges when work in data  link layer it can check the physical  (MAC) address  fro source and destination contain in a frame  and hence deciding  whether to forward  or discard the frame. For  example  it source  and destination are on the same  network  segment the bridge filters the frame. If  destination  is on a different  network  segment  the bridge  forwards the frame. Bridges  are made  to divide  a big network  into  smaller sub network  known  as  segments.

Bridges  are different  to repeaters as they  have filtering  capacity  which  is not  available with repeaters. Bridges sends  the data  frames  only to the  concerned segment thus preventing excess traffic. For e, g,  if a network  is divided in four  segments. Segments  i1 send  a frame destined  for  another  host on  segment  3 the bridge  forwards  the frame  only to segment  3 and not the  segment  2 and  4 thus blocking  unwanted traffic.

Posted Date: 3/16/2013 2:28:40 AM | Location : United States

Related Discussions:- Bridge - network layer and routing , Assignment Help, Ask Question on Bridge - network layer and routing , Get Answer, Expert's Help, Bridge - network layer and routing Discussions

Write discussion on Bridge - network layer and routing
Your posts are moderated
Related Questions
THE high spectral efficiency makes OFDM a suitable technology to meet the demands of wireless data traffic. A currently discussed new application are OFDM based overlay systems. In

User Datagram Protocol - UDP is a connectionless oriented transport protocol for use when the upper layers give error-recovery and reliability. UDP does not sequence data or re-ass

Enumerate about the Star networks Comments: 1 - If one connection/station fails the other devices aren't affected 2 - If central hub breaks down, the whole network fail

TCP/IP is a name provided to the collection (or suite) of networking protocols that have been used to construct the global Internet. The protocols are also referred to as the DoD (

if the signal input to an amplifier is 0 dBm what is the power output in mW if the gain of the amplifier is 20 dB ?

In link-state routing network topology is filled from route calculation. Switches send link-state information about local joins. Every switch creates own routing tables. It needs

Distributed systems are composed of a number of physically separate machines connected by one or more communication links. Unlike parallel systems, there's no shared clock or memor

QUESTION 1. A system analyst has to install a particular type of topology in a textile industry. (a) Describe using diagrams the three most common topologies in terms of nod

Determine the working of LAN within a corporate network It should be very clear right from the beginning that a firewall is not simply for protecting a corporate network from u

What is basic purpose of Routers