LVS - technology ah kuna Xasilay

Currently baahsan oo aad u ballaaran shabakadaha computer. iyaga waxaa la jiray, users la khayraadka isla, barnaamijyo, xogta ka Kundarbetsplats gaar ah ugu shaqayn karin, si toos ah.

Waa maxay LAN ah?

Nooca ugu badan ee shabakadaha - maxaliga ah shabakadaha deegaanka.

LVS - network computer ah isku Xidhka isticmaala mishiinka maxalliga ah waa at qaar ka mid ah masaafo ka soo midba midka kale. Inkasta oo kala duwan ee shabakad dhowr kilomitir ah, waxaa caadi ahaan loo isticmaalaa xidhiidhka kombiyuutarada ee meel fog ka yar. Caadi ahaan, mashiinka shaqada this ka mid ganacsi ama guriga kumbiyuutarada.

qaabeynta of LAN

Qaabeynta laga yaabaa in lagu soo sheegnay läns oo gacanta ku server aan ah (siman).

Peer network degaanka

In shabakadaha sida, oo dhan kombiyuutarada la mid ah marka la eego nashqadda yihiin. Peer-to-LAN - shabakad maxaliga ah, taas oo Kundarbetsplats kasta qaban karto oo dhan hawlaha la heli karo macmiilka iyo server labadaba. Waayo, miisaamid load ku ool ah in tiro ka mid ah ka qayb computer LAN ma noqon karaan wax ka badan 10. Haddii kale, waxqabadka network oo dhan u xanuunsadaa.

server maamulka Network (multilevel)

In sida LAN ah waa mid ka mid ah kombiyuutarada waa qaab kala duwan wanaagsan, kartida xasuusta, iyo tilmaamayaasha kale. PC Tani waxa lagu qoray by server ka. Server on LAN ah - waa kombiyuutarada la waxqabadka sare iyo awooda xusuusta waaweyn marka la barbar dhigo mishiinka maxaliga ah ee user ee. Waa isaga kan bixisaa interface si kombiyuutarada kale ee network, dukaamada iyo qabanqaabisaa files dadweynaha si ay u helaan, gudbiya xogta macmiilka ee foomka macluumaadka si loo farsameeyo ama natiijada dhamaadka. LAN, taas oo server loo isticmaalo oo kaliya in ay meel xogta caadiga ah, loo yaqaan shabakadaha la server a file heegan ah. Oo ay la socdaan nidaamka sida, jiro LAN ah, taas oo server waxaa sidoo kale fuliyay iyo processing macluumaadka, iyo macmiilka helo oo kaliya natiijada. Tani waxa loogu yeero nidaamka macmiilka-server.

LAN topology

All kombiyuutarada on shabakada heer jirka waa isku xiran. LAN topology - si ay u xirmaan mashiinka maxaliga ah. Haddaba läns xeryahooda waxaa loo isticmaalaa habab sida baska, xiddiga, iyo giraanta.

topology baska

In ka LAN, oo shirkii loo qorsheeyey sida ay topology this waxaa loo isticmaalaa in shirka hal cable ah, ayaa ku biiray user computer maxaliga ah. Sidaas darteed, macluumaad ka mid mashiinka maraa dadka kale oo dhan. Kundarbetsplats The, kuwaas oo la hagaajiyaa xogta, macluumaadka doorteen tarin ka durdur guud.

Faa'iidooyinka topology baska LAN ah:

• cillad ka mid ah mid ka mid ah kombiyuutarada maxaliga ah ma saameyn doonto howlgalka of mishiinada iyo shabakadaha kale ee guud,
• qaabeynta a fudud iyo design of LAN ah;
• kharashka yar ee isticmaalo (la gacan yar oo tallaabo, tusaale ahaan, ururka isku mid ah).

Qasaaraha topology:

• dhaawac Cable hor istaagay network guud ahaan;
• kala duwan oo kooban iyo dhowr users;
• xawaaraha yar (taas oo ku xidhan tirada kombuyuutarada on shabakadda).

"Star" topology

topology ee noocan ah ku lug leedahay is dhexgalka oo ka mid ah kombiyuutarada degaanka via qalabka network (xarun ama xarun) oo bixiya xiriir isku midka ah ee mashiinada shaqeeya. goob kasta oo ku xiran qalab ciidan iyada oo kaarka network gaar ah cable. Sida foomka hore ee topology, xogta xilka waa u diyaar dhammaan kombiyuutarada on shabakadda, oo keliya ayaa la aqbali doonaa by user ee ay loogu talagalay.

Faa'iidooyinka topology:

• sahal ah qabanqaabinta shaqo cusub,
• oolnimada sare;
• Gaf dhakhso ah ama cable fasax;
• on hawlgalka network ma saamayn gardarrada ah mashiinada maxaliga ah shaqsi.

Qasaaraha topology:

• failure of unit dhexe joojiyo hawlgalka network oo dhan;
• tirada dadka isticmaalaya la xadiday tirada dekedaha of unit dhexe;
• isticmaalka uneconomical in cable,
• helitaanka kharashka Hub (ama qalabka kale ee network).

Topology "giraanta"

LAN rakibo oo laga sameeyey sida ay xeerarka noocan ah topology, waxay ka kooban yihiin taxane ah oo mashiinada shaqeeya isku xiran, la xirrira giraan ah. Xogta kiiskan waa mid ka mid computer in kale, oo waxaan degganaan on xaqiiqada ah in ay la hadlay.

Faa'iidooyinka topology "giraanta":

• Ma jiraan wax kharash qalabka network (xarun, router);
• awood u leh inay u gudbiyaan xogta ka mid ah kombiyuutarada duwan oo isku mar.

Qasaaraha topology:

• waxqabadka network oo dhan ku xiran yahay xawaaraha computer kasta;
• Jebinta cable ama failure of mid ka mid computer xiran yahay hawlgalka oo dhan shabakadda;
• kakanaanta oo ka mid ah Mudanayaasha iyo qaabeynta,
• Ururka ee shaqooyinka cusub ayaa waqti qalalin shuqulka LAN ah.

topology ayaa ka mid ah "giraanta" waxaa ku dhowaad marnaba loo isticmaalo si dhab ah sababtoo ah amni-darrada guud, laakiin waxaa qasab ku ah beddelka kala duwan.

Currently, shiidaa urur ma samayn karo iyada oo aan LAN ah. More caadi topology "star" network ay sabab u tahay in ay isku halaynta iyo dulqaad qalad. LAN topology "giraanta", by la barbardhigo, ma la kulmaan tilmaamayaasha caafimaadka iyo ammaanka casriga ah. Si kastaba ha ahaatee, LAN oo dhan ayaa qayb ka mid ah nolosheena noqdaan oo gacan ka waxtarka ganacsi kasta.