Zowonongeka kwadongosolo ndizowonongeka kwa deta, makina ojambulidwa pulogalamu yamakina a pulogalamu yothandizira kuti athe kugwirizanitsa malo amtundu wa malo (LANs) ndi kutumiza dera kudutsa Wide Area Networks (WANs) . Kuyanjanitsa kwadongosolo kumagwiritsa ntchito teknoloji imodzimodziyo monga X.25 ndipo inapindula kwambiri ku United States monga chitukuko chopangira ntchito za Integrated Services Digital Network (ISDN) zogulitsidwa kwa makasitomala amalonda.
Momwe Mzere Wowonjezera Umagwirira Ntchito
Kukonzekera kwazithunzi kumaphatikizapo kuchulukana kwa magalimoto kuchokera kumagulu angapo pa kugwirizana komwe kugwiritsidwa ntchito pogwiritsa ntchito zigawo zofunikira za hardware zomwe zimaphatikizapo mafayilo ojambula, milatho, ndi masinthidwe omwe amaphatikiza deta ku mauthenga apadera a Relay Relay. Chidutswa chilichonse chimagwiritsa ntchito chidziwitso cha Data Link Connection (DLCI) cha khumi (10) chachitsulo chothandizira. Mitundu iwiri yolimbana ilipo:
- Mipata Yachikhalire Yoyenera (PVC) - chifukwa chogwirizana chokhazikika kuti chikhale chosungika kwa nthawi yaitali ngakhale ngati palibe deta ikumasulidwa
- Kusintha Maulendo Othandiza (SVC) - kwa maulumikizano osakhalitsa omwe amangotenga nthawi imodzi yokha
Kukonzekera kwapangidwe kumapindula bwino kuposa X.25 pa mtengo wotsika kwenikweni osati kuchita cholakwika chilichonse chokonzekera (m'malo mwake chimatumizidwa ku zigawo zina za intaneti), kuchepetsa kwambiri makina otetezedwa . Ikuthandizanso zowonjezera kukula kwa mapepala apakati kuti agwiritse ntchito mogwira mtima pa intaneti ya bandwidth .
Kuloledwa kwadongosolo kumagwira ntchito pa fiber optic kapena mndandanda wa SDN ndipo ukhoza kuthandizira ndondomeko zosiyana siyana za intaneti monga Internet Protocol (IP) .
Zochita Zowonongeka Kwadongosolo
Zojambula Zowonongeka zimagwirizana ndi chiwerengero cha deta ya mizere ya T1 ndi T3 - 1.544 Mbps ndi 45 Mbps, motero, ndi maulumikizidwe a munthu aliyense mpaka 56 Kbps. Ikuthandizanso kumagwirizanitsa ma fiber mpaka 2.4 Gbps.
Mgwirizano uliwonse ukhoza kukhazikitsidwa ndi Committed Information Rate (CIR) yomwe pulogalamuyo imasunga mwachisawawa. CIR imatanthawuza mlingo wosachepera wa chidziwitso kuti kulumikizana kuyenera kuyembekezera kulandira pansi pazomwe zimakhazikika (ndipo zikhoza kupitirira pamene chiyanjano chakuthupi chili ndi mphamvu yokwanira yothandizira tit). Kuloledwa kwadongosolo sikulepheretsa kugwira ntchito kwachitsulo cha CIR komanso kumapangitsa kuti magalimoto asokonezeke, kumene kugwirizana kungakhale kanthawi (kawirikawiri kwa masekondi awiri) kupitirira CIR yake.
Nkhani zogwiritsidwa ntchito
Kukonzekera kwadongosolo kunapereka njira yokwera mtengo kwa makampani ojambulira mafoni kutumiza deta pamtunda wautali. Teknolojia iyi yachepa popititsa patsogolo pamene makampani akupita patsogolo pang'onopang'ono kusamuka kwawo kwa njira zina za Internet Protocol (IP) .
Zaka zapitazo, ambiri ankawona Njira Yowonetsera Asymchronous (ATM) ndi Frame Relay monga otsutsana mwachindunji. Mafilimu a ATM amasiyana kwambiri kuchokera ku Frame Relay, komabe - kugwiritsa ntchito kutalika kwake kusiyana ndi mapepala otalikirana omwe amafunikanso kuti agwiritse ntchito ndalama zambiri.
Kukonzekera kwapangidwe kumapeto kunapikisana kwambiri ndi MPLS - Multi-Protocol Label Switching. Njira za MPLS zakhala zikugwiritsidwa ntchito kwambiri pa internet routers kuti zithetsere bwino njira za Virtual Private Network (VPN) zomwe poyamba zinkafuna Frame Relay kapena njira zoterozo.