Basically, consider the analogy of a host as a ¬ † home. Then think of a network as the LAN ¬ † a small street or alley. The House is located in a narrow alley connected on the Protocol. Some of the protocols connected to a provincial roads. That's
the ¬ † WAN, simply, where each host connected in hirarikal with each
other in a city, although it is not know each other directly.
Every
police officer in the intersection, intersection, intersection, etc.
could be made the analogy of a router, the traffic manager. We should not have to think about U-turn (in Indonesian language what?), because I have not found the exact equivalent. Ah I dunno, any ideas?
One
time, Robby (for example) who live in a certain street No. 31 Timbuktu,
Mali, West Africa wanted to give something to the Denny's who lived in
The Street no 46 Lima, Peru, South America. To do Robby first is check table name and address of the person sekomplek. Can't
find the address in the ARP list Denny least as complex as he headed
for a default gateway (main portal) that leads to the outside aisles or
complex. As it passes through the portal, asked ¬
† on the police or gendarmerie, Robby finds out that he (security
guard) ever feel never know there's Denny around the road, so Robby
geared to toward the highway. Arriving on the
highway, Robby has found that police on the highway do not know where to
go to the city of Lima, Peru, then Robby was again directed towards the
end of the road onto the road, which turns out is the Protocol.
We
need to know, all security guards and police (or router) around the
world have the same mentality, i.e. If it does not recognize or know the
address in question, then they will refer the questioner to go down the
street and into the street. In computer networking, it is known as the default gateway. If
the router doesn't know where an IP address is, then he will direct the
packet to the default gateway, or IP addresses 0.0.0.0/0.
It went on, until at last he reached a crossroads, that the police know where to find an address Denny. The police drive Robby towards a road, which turns lead to South America. In South America, Robby directed by local police to go to Peru. So on to Robby find Denny. Simple right, like a pack of Post when delivering mail.
To
return to his home in Timbuktu, Robby must repeat it again step by step
like the beginning, mainly because the police in Five do not know to
where to go to Timbuktu:)
The network itself is extensive, stretching across the surface of the Earth. Surely there is a type of very diverse. Like the land, sea, and air, there are lots of media used in the transmission of data. Call it copper wires, fiber-optic, microwave, radio, etc. Just
as in the real world there are road crashes (full bandwidth), detour
(multi hop), bypass (one hop), until a certain way for hard to reach
areas (remote-site).
For it is necessary a more qualified police officers to regulate traffic. The police must be able to speak globally, do not miss the technology, and not easy to:p stress. Yes,
routernya must understand protocols (rules) to global routing (BGP
typically) ¬ † and able to handle the traffic that is applied.
To Denny's House in Peru, Robby from Timbuktu has several options. He can pass by Algeria, France, New York, Texas, Panama, to Peru. Or it could be through Egypt, Saudi, India, Singapore, Hawaii, Texas, Panama, and Peru. It Is Up. Let's say for it was rich include Robby:D, she has very little choice. The
House has a private jet aircraft with the runway, the underground
walkway directly connected to fast-track-non-barrier facilities, subway
line with shinkansen, transporter, anyway (rich jee'Ä ¶). All personal property, aka dedicated line, no longer belongs to the bandwidth in the narrow alleys and cobbled streets.
This is how computer networking (and internet) were made, to unite:)
Why do countries passed Robby sequence? For example, from India to Singapore, then to Hawaii. Whereas there are Bangladesh, Thailand, Malaysia, and ... Indonesian! Of course because of the path that passed indeed cavort. Therefore, travel from 1 router to other routers are known as hop (leap).
Zoning (topology) in a network the internet is a little different with the Division of the territory of that country. Indonesia, for example, although the same high standing with the other de jure, but in fact our internet network infrastructure relies heavily on the "way" of other countries, including Singapore, Malaysia, Australia, the Americas, China, and several countries in Europe. To be able to go global, all internet hosts in Indonesia must pass through these countries. Can imagine if one of the "the liaison" which is just a bit of it is disconnected, then disaster for our internet world.
Source: http://www.jaringankomputer.net/
0 comments:
Post a Comment