WAN Tanthauzo ndi Kufotokozera momwe WANs Amagwira Ntchito
WAN (malo ochezera a m'madera) ndi malo oyankhulira omwe amawunikira malo akuluakulu monga mizinda, maiko, kapena mayiko. Iwo akhoza kukhala payekha kuti agwirizane mbali zina za bizinesi kapena iwo akhoza kukhala omveka kwambiri kuti agwirizane ndi magulu ang'onoang'ono pamodzi.
Njira yosavuta kumvetsetsa zomwe WAN ayenera kuganizira pa intaneti yonse, yomwe ndi WAN yaikulu kwambiri padziko lonse lapansi. Intaneti ndi WAN chifukwa, pogwiritsira ntchito ISPs , imagwirizanitsa ma intaneti ang'onoang'ono omwe amapezeka m'madera a m'midzi (LANs) kapena malo a m'matawuni (MAN).
Pakati pazing'ono, bizinesi ikhoza kukhala ndi WAN yomwe ili ndi maulendo a cloud, likulu lake, ndi maofesi aang'ono a nthambi. WAN, mu nkhaniyi, angagwiritsidwe ntchito kugwirizanitsa zigawo zonse za bizinesi pamodzi.
Ziribe kanthu zomwe WAN akuphatikizana pamodzi kapena momwe mautumikiwa aliri kutali, zotsatira zake zonse zimakhala zotheka kulola mawonekedwe ang'onoang'ono osiyana kuchokera kumadera osiyanasiyana kuti alankhulane wina ndi mzake.
Zindikirani: WAN nthawi zina amagwiritsidwa ntchito pofotokoza malo opanda waya, ngakhale kuti nthawi zambiri amamasuliridwa ngati WLAN .
Momwe WANs Amagwirizanirana
Popeza kuti WANs, mwa kutanthauzira, amayendetsa mtunda wautali kusiyana ndi LANs, ndizomveka kugwirizanitsa mbali zosiyanasiyana za WAN pogwiritsa ntchito makompyuta enieni (VPN) . Izi zimapereka mauthenga otetezedwa pakati pa malo, zomwe ndi zofunika kupatsidwa kuti kusintha kwa data kukuchitika pa intaneti.
Ngakhale kuti ma VPN amapereka zogwirizana ndi chitetezo cha ntchito zamalonda, kulumikizana kwa intaneti sikuti nthawi zonse kumapereka ntchito zomwe zingagwirizane ndi WAN. Ichi ndi chifukwa chake fiber optic zingagwiritsidwe ntchito poyambitsa kukambirana pakati pa ziyanjano za WAN.
X.25, Zowonongeka, ndi MPLS
Kuyambira m'ma 1970, ma WAN ambiri adamangidwa pogwiritsa ntchito teknoloji yotchedwa X.25 . Mitundu iyi yamagetsi inathandiza makina odziwitsira okha, makhadi ogulira ngongole, ndi zina mwazinthu zoyambirira zogwiritsa ntchito malonda monga CompuServe. Mabungwe akuluakulu a X.25 adatha kugwiritsa ntchito maulendo 56 Kbps osakanikirana modem.
Mapulogalamu opangira maulendo apangidwe anapangidwa kuti asinthe mosavuta ma protocol a X.25 ndipo apereke njira yowonjezera mtengo kuntchito zambiri zomwe zimayenera kuthamanga mofulumira. Kukonzekera kwazithunzi kunasankhidwa kukhala makampani ojambulira makampani ku United States m'ma 1990, makamaka AT & T.
Multiprotocol Label Kusintha (MPLS) inamangidwanso kuti ipange mawonekedwe a Frame Relay mwa kusintha chithandizo chothandizira poyendetsa kayendedwe ka mawu ndi mavidiyo powonjezereka ndi chidziwitso chodziwika bwino cha deta. Mbali za Utumiki (QoS) za MPLS zinali zofunika kwambiri kuti zipambane. Mapulogalamu otchedwa "katatu" omwe amamangidwa pa MPLS adawonjezeka kwambiri pazaka za 2000 ndipo potsirizira pake adasinthidwa ndi Frame Relay.
Anachotsedwa Lines ndi Metro Ethernet
Mabizinesi ambiri anayamba kugwiritsa ntchito mzere woyendetsa ntchito WANs pakatikati mwa zaka za 1990 pamene ukonde ndi intaneti zinaphulika pa kutchuka. Mzere T1 ndi T3 nthawi zambiri amagwiritsidwa ntchito kuthandizira MPLS kapena intaneti VPN.
Maulendo akutali, maulendo a Ethernet ndipotu angagwiritsidwe ntchito pomanga maofesi ambiri odzipereka. Ngakhale kuti ndi okwera mtengo kwambiri kusiyana ndi njira za intaneti za VPNs kapena MPLS, ma EVET apadera amapereka machitidwe abwino kwambiri, ndi maulendo omwe amawerengedwa pa 1 Gbps poyerekeza ndi 45 Mbps za chikhalidwe cha T1.
Ngati WAN ikuphatikiza mitundu iwiri kapena yowonjezera ngati imagwiritsa ntchito maulendo a MPLS komanso mizere ya T3, ikhoza kuonedwa kuti ndi WAN wosakanizidwa . Izi ndi zothandiza ngati bungwe likufuna kupereka njira yogwiritsira ntchito ndalama kuti ligwirizanitse nthambi zawo palimodzi komanso kukhala ndi njira yofulumira yolemba deta zofunika ngati kuli kofunikira.
Mavuto ndi Malo Ambiri Ambiri
Ma intaneti a WAN ndi okwera mtengo kwambiri kuposa intranets zapanyumba kapena makampani.
WANs kuti malire a mayiko onse ndi magawo ena amagawidwa m'maboma osiyanasiyana. Mikangano ingabwere pakati pa maboma okhudza ufulu wa umwini ndi zoletsa kugwiritsa ntchito maukonde.
Ma WAN apadziko lonse amafuna kugwiritsa ntchito makina a undersea network kuti azilankhulana m'mayiko onse. Zingwe za pansi pa nyanja zimakhala zowonongeka komanso zopuma mwadzidzidzi kuchokera ku sitima ndi nyengo. Poyerekeza ndi malo olowera pansi pa nthaka, zingwe za undersea zimatenga nthawi yaitali ndikuwononga zambiri kuti zikonzeke.