WAN Tsanangudzo uye Tsanangudzo yekuti WANs Inoshanda Sei
IWAN (nzvimbo yakawanda yenzvimbo) inotarisana nenhare inotarisa nzvimbo yakawanda yakadai semaguta, nyika, kana nyika. Vanogona kunge vari voga kuti vabatanidze zvikamu zvebhizimisi kana vanogona kunge vari vanhu vakawanda kuti vabatane mitambo miduku pamwe chete.
Nzira iri nyore kuti unzwisise izvo WAN inofunga nezveInternet yose, iyo inonzi WAN huru pasi rose. Indaneti ndeye WAN nokuti, kuburikidza nekushandiswa kweIPs , inosangana nemataundi mashoma emunharaunda emunharaunda (LANs) kana mitambo yenzvimbo (MANs).
Panyaya duku, bhizinesi inogona kuva neWAN iyo ine makore emafambo, iyo mahofisi makuru, uye mahofisi emapazi maduku. IWAN, munyaya iyi, inoshandiswa kuunganidza zvose zvezvikamu zvebhizimisi pamwechete.
Hazvina mhosva kuti WAN inosangana pamwe chete kana kuti kure zvakadini nemakwikwi aya, mugumisiro wekupedzisira unogara uchida kubvumira mitauro yakasiyana siyana kubva munzvimbo dzakasiyana-siyana kuti itaurirane.
Cherechedza: Zita reWAN dzimwe nguva rinoshandiswa kurondedzera nzvimbo isina mhepo inoshandiswa, asi inowanzodhindurwa seWLAN .
Nzira dzeWANs Dzinobatanidzwa sei
Sezvo WANs, nedudziro, yakavhara kure kure neLANs, zvinonzwisisika kubatanidza zvikamu zvakasiyana-siyana zveWAN uchishandisa mavhenekeri ega ega (VPN) . Izvi zvinopa hutano hwakachengetedzwa pakati penzvimbo, izvo zvakakosha zvakapiwa kuti kuwedzerwa kwemashoko kuri kuitika pane internet.
Kunyange zvazvo VPN inopa hutano hwakanaka hwekuchengeteka kwekushandiswa kwebhizimisi, ruzhinji rwehutano hwehutachiona hahupi hunoti hurumende inogadziriswa yehutano hunoita kuti humwe hunodikanwa hweWAN hugone. Ichi ndicho chikonzero fiber optic cables dzimwe nguva inoshandiswa kuita kuti hutano huenderane pakati pehutano hweWAN.
X.25, Frame Frame Relay, uye MPLS
Kubva kuma1970, vazhinji veWAN vakavakwa vachishandisa teknolojia yekudaidzwa inonzi X.25 . Aya marudzi emagetsi akatsigira makambani ekutsanangurira, makadhi ekubhadhara makadhi, uye mamwe emhando yekutanga yepaIndaneti mazano akadai seCompuServe. Vakwegura X.25 mitambo yakamhanya vachishandisa 56 Kbps dial-up modem.
Framework Relay teknolojia yakasikwa kuti iite nyore X.25 zvigadziriswe uye inopa sarudzo shoma kudhura nzvimbo dzakawanda dzenharaunda dzaidiwa kumhanyira zvakakwirira. Frame Relay yakava sarudzo yakakurumbira kumakambani ekutengesa kuUnited States muma1999, kunyanya AT & T.
Multiprotocol Label Kugadzirisa (MPLS) kwakagadzirirwa kutora Frame Relay nekuvandudza rutsigiro rweprotocol pakushandisa izwi nevhidhiyo motokari kuwedzera kune zvido zvemashoko evhesi. Unhu hwehutano (QoS) hunoonekwa nePMLS hwakanga hwakakosha pakubudirira kwahwo. Izvozvo zvinonzi "katatu kutamba" mitambo yakagadzirwa paPMLS yakawedzera pakuzivikanwa mukati me2000 uye yakagadziridza shandura Frame Relay.
Yakakodzwa Lines uye Metro Ethernet
Mabhizimisi mazhinji akatanga kushandiswa muchengeti wakagadzirwa neWANs pakati pemakore ekuma 1990, sezvo webhu ne internet zvakaputika mukududzirwa. T1 uye T3 mitsara inowanzoshandiswa kutsigira MPLS kana internet VPN communications.
Mirefu-kure-kure, hoti-to-point Ethernet links anogonawo kushandiswa pakuvaka makamikirwo akaenzana emunzvimbo. Kunyange zvazvo zvinodhura zvakanyanya kudarika internet VPNs kana MPLS solutions, Private Ethernet WANs inopa hukuru hwekushanda, nehutano hunoenzaniswa ne1 Gbps zvichienzanisa ne 45 Mbps dzetsika T1.
Kana WAN inobatanidza miviri yepamusoro kana kupfuura iyo yakafanana kana inoshandisa magwiti ePLLS uye nemitsara yeT3, inogona kuonekwa seHAN hybrid . Izvi zvinobatsira kana sangano iri richida kupa nzira inoshandiswa mari inoshandiswa kuunganidza matavi awo pamwe chete asiwo ine nzira inokurumidza kuendesa dambudziko rinokosha kana zvichidikanwa.
Zvinetso NeWide Area Networks
WAN mitambo inodhura zvikuru kupfuura intranet yemusha kana yekambani.
WANs iyo mhirizhonga yenyika nedzimwe miganhu yenyika inowanikwa pasi pemitemo yepamutemo yakasiyana. Nharo dzinogona kubuda pakati pehurumende pamusoro pekodzero dzekodzero uye mitemo yekushandisa kushandiswa.
Global WANs inoda kushandiswa kwepasi pechirongwa chekambani dzemakambani ekutaurirana kumativi ose kumakondinendi. Insea cables inowanikwa pasi pekusarura uyewo kusagadzikana kusingatarisiri kubva kune ngarava uye mamiriro okunze. Kuenzaniswa nemasvingo epasi pemvura pasi, makungwa ari pasi pepasi anotora nguva refu uye anodhura zvakawanda zvekugadzirisa.