Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Internet Backbone
Internet backbone is the physical networks ( usually relying on fiber optic cable ) that carries internet traffic between different networks and is measured in megabits per second. It is true that because data travel at the speed of light. Any place connected to any of the backbone network should be as accessible as any other place. In reality however congestion at network hubs and junctions makes places with high levels of capacity better positioned to be home to companies that distribute large amounts of data via the internet. if the pipes are not big enough relative to the amount of data going through them data transmission speeds will get slow. However it can be an issue for companies especially those companies that are hosting and transmitting large amounts of data. As a result having a high capacity of internet backbone in a metropolitan area relative to demand is a competitive advantage.
The internet backbone is a collaboration of multiple networks routing facilities and servers that provides a multiple redundancy approach to keeping information online.
The national science foundation (NSF) created the first high speed backbone in 1987s. Called NSFNET, that has connected 170 smaller networks together and operated at 1.544Mbps.
Backbones are typically fiber optic trunk lines. The trunk line has multiple fiber optic cables combined to gather to increase the capacity.
The internet backbone uses fiber optic cables, which are very thin strands of glass to send data. Fiber optic equipment uses lasers to transmit data with pulses of light. These stands of glass are actually stronger than steel. There are very long fibers. Which are up to 15 miles (24 mils) long laid beneath cities to connect network to each other. They are often buried next to railroads or under streets in cities.
Other types of backbone connection include satellite and radio links satellites orbiting earth provide connections for many long distance links. An earth station is a site on earth that communicates with the satellites. The earth station sends the signal to the satellite and the satellite relays the signal to an earth station a particular destination. Satellite links are slower than fiber optic links and satellite links sometimes experience problems caused by environmental events like supports.
Routing Information Protocol (RIP) is a distance vector routing protocol that used hop count as its metric. The maximum hop count is 15, 16 hops are considered unreachable. RIP upd
difference between spambox and inbox in gmail
LEASED SATELLITE CHANNEL: It may span arbitrarily big distance. It is given in the figure below. Figure Satellite connections are low bandwidth to protect cost
What is the Frame A presentation format, which enables Web page designers and users to mark a part of the screen for links to other pages. Frames usually appear on the left
Satellite Radio Channels A communication satellite links two or more earth microwave transmitter receiver, know as ground stations. The satellite receives transmission on
Increasingly it is the quality of the interface of mobile phones that are giving competitors the edge. Users not only make selections based on cost but also functionality and cert
Virtual channel is normally a link from one source to one destination, although multicast connections are also allowed. The other name for virtual channel is virtual circuit.
Fixed version of rdt 2.0 rdt 2.1 The rdt 2.1 sender and receiver FSM each now have twice as many states as before. This is because the protocols state must now refle
Computer Networks 1. Differentiate WAN and LAN. 2. Describe the TCP/IP Reference Model with diagram. 3. Explain Circuit switching and message switching. 4. List the fu
Q. TCP – numbering bytes? Numbering is utilized for flow & error control Segments aren't numbered only bytes Full-duplex connection - numbering is independent in
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!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd