Bridge - network layer and routing , Computer Networking

Bridge

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
A data link is shared by 20 data sources. Each source is active only 10% of the time and produces 1Mbps data rate when active. The sources start their transmissions at random. a

I have a research in this topic " Mitigating DoS Attacks against Broadcast Authentication in Wireless Sensor Networks " with simulation

With a database server, the client gives SQL requests as messages to the database server. The results of every SQL command are returned over the network. The server uses its own pr

This ICT-related issue that has been raised in the contemporary media, and the article is required to be included as part of the essay: Undertake further research about this top

What is usage of Sequence Number in Reliable Transmission? The protocol specifies that frames need to be numbered. This is done by using sequence numbers. A field is added to t

WHAT IS NETWORK???

SONET Frame Can be viewed as a matrix of nine rows of 90 octets every for a total of 810 octets.  A few used for control they aren't positioned at the beginning or end of the


802.11 CSMA/CA a) Wait a DIFS time to avoid collision b) Send RTS and wait for CTS reply to obtain the use of the Medium (air) c)  Use of SIFS time for control informatio