Output port - network layer and routing , Computer Networking

Assignment Help:

Output Port

The function of the  port is  take  the packets that have  been stored in the out  put port  memory and transmits them over the out going  link. The queuing  and buffer management  functionality required  when  the switch  fabric  delivers packets to the output  ports  at a rate that exceeds the output  link  rate.

2095_output port 236.png

                                                                    Figure  output  port processing

Output   port  queuing is that a packet scheduler  at the output  port must  over packet among  those queued for transmission. This selection might  be done  on a simple  basis. Such  as first  come first served scheduling. Or a more sophisticated scheduling  such a weighted fair queuing which shares the outgoing  link  fairly among  the different  end to end  connections  that have  packet  queued for transmission.

2055_output.png

                                                                           Figure output port queuing

Figure  shows  the output port  queuing. At time a packet has arrived at each of the  incoming  input  ports each destined  for the  outgoing port. Assuming identical line  speeds  and a switch  operating at three times  the line speed, one  time unit  latter that is in the time  needed to receive or send a packet all three original packets have been transferred to the outgoing out and are queued awaiting  transmission. In the next time  unit  one of these three packets will have been transmitted over the outgoing link. By  the example  two new packet shave arrived at the  incoming  side  of the switch  one of these  packets  is destined for output  port.


Related Discussions:- Output port - network layer and routing

What is a database server, With a database server, the client gives SQL req...

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

Ospf - open shortest path first , OSPF ( open Shortest Path First) Open...

OSPF ( open Shortest Path First) Open shortest  path first  is a routing  protocols  developed for internet protocols networks by the  interior  gateway protocols working group

WAN, what is a WAN

what is a WAN

Network service model - network layer and routing, Network Service Model ...

Network Service Model The network  service  model  defines  the characteristics of end to end  transport of data between  one edge of the  network  to the  other  that is betwe

Describe the rpc and client server architecture, Can you describe the RPC a...

Can you describe the RPC and Client server Architecture?

Repeater - network layer and routing, Repeater Repeater is  also named...

Repeater Repeater is  also named as active hub operates at physical  layer of OSI model. Repeater is an  electronic  device that simply regenerates the signal. Signals travell

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd