link layer - computer network, Computer Networking

Assignment Help:

 Link Layer

To move  to packet  from one node( host  or packet swtich0 to  net node  in the  route the network  layer  relies  on the  services  of the link layer. Particularly  at each  node the  network  layer  passes the datagram  down to the  link layer which delivers the datagram to the next node along the route  the link layer  passes the datagram  up  to the  network  layer.

The services  provided  by the link layer  depend the specific  link  layer  protocol that  is employed over the link. For example  some  protocol provide  delivery on  a link  basis that  is from transmitting node  over link to receiving node. Note  that this  reliable delivery service is different from the   reliable delivery service of TCP, which  provides reliable delivery  from one end system to another. Example  of link  layers  include Ethernet and the point to point  protocol (PPP). As Datagram's  typically  need to  traverse several links  to travel from  sources to destination a datagram's  may be  handle by different  link  layer  protocol at different  links  along  its route. For example  a datagram may be handled  by Ethernet  on one link  and by  PPP on the next  link. The  network  layer  will  receive  a different  service from each of the different link layer  protocols. Link  layer  packets are known  as frames.

 


Related Discussions:- link layer - computer network

Memory pools-input and output pool-pci pool, Memory Pools IOS manages a...

Memory Pools IOS manages available free memory thorugh  memory pool series, which are essentially heaps in the generic sense; each pool is a set of memory blocks that can be al

Labels and label switching, An ATM network is created from interconnected A...

An ATM network is created from interconnected ATM switches. The attachment ports or points can be connected to computers or other ATM switches. As cells reach at an ATM switch, the

Explain about the browser, Explain about the Browser A program that ...

Explain about the Browser A program that allows the user to access and read information on the World Wide Web. Netscape® Navigator and Microsoft Explorer® are the best known

State the network environment of intranets and internet, State the Network ...

State the Network environment of Intranets and Internet Intranets as well as the Internet are based purely on networks, the company intending to install Intranet must consider

Error detecting code - parity bit, Error Detecting Code - Parity bit: ...

Error Detecting Code - Parity bit: The general idea for achieving error detection and correction is to add some redundancy (i.e., some extra data) to a message, which receiver

What are different ways of securing a computer network, What are different ...

What are different ways of securing a computer network? There are lots of ways to do this. Install reliable and updated anti-virus program on all computers. Make sure firewalls

What is meant by middleware, Middleware is distributed software required to...

Middleware is distributed software required to support interaction among clients and servers. In short, it is the software that is in the middle of the Client/Server systems and it

Question, On a lan where are ip datagram transported?

On a lan where are ip datagram transported?

Overview of the various network topologies, QUESTION Write a report to ...

QUESTION Write a report to explain the concept of LAN and WAN including the various components of the telecommunication infrastructure required by UTM Ltd. You are required to

State about the packet filter firewalls, State about the Packet filter fire...

State about the Packet filter firewalls They remain the most common type of firewall in use as of today. They were the earliest firewalls developed and were capable of permitt

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