Molaetsa oa mohaho ke mocheso oa khokahanyo oa data, theknoloji ea pentekete ea protocol ea protocol ea marang-rang e reretsoeng ho hokahanya Sebaka sa Sebaka sa Ts'ebetso (LANs) le ho fetisetsa boitsebiso ho Wide Area Networks (WANs) . Relay Framework e arolelana theknoloji e ts'oanang le ea X.25 mme ea finyella botumo bo bongata United States e le lisebelisoa tsa motheo tsa tšebeletso ea Integrated Services Digital Network (ISDN) tse rekisoang ho bareki ba khoebo.
Mokhoa oa ho Relay oa Lehlaka o Sebetsang Joang
Moferefere oa Relay o tšehetsa multiplexing ea sephethephethe ho tloha li-connection tse ngata holim'a sebopeho se kopantsoeng se sebelisitsoeng ho sebelisa likaroloana tsa thepa e khethehileng tse kenyeletsang li-routers, marokho, le li-switches tse fanang ka data ho melaetsa ka bomong ea Relay Relay. Khoheli ka 'ngoe e sebelisa Identifier Connection Connection Identifier (DLCI) e leshome (10) bakeng sa ho buisana le mocha o mong. Mefuta e 'meli ea mefuta e teng:
- Li-circuits tse sa feleng (PVC) - bakeng sa likamano tse tsitsitseng tse reretsoeng ho li boloka ka nako e telele le haeba ha ho na data e fetisetsoang ka mafolofolo
- Ho fetola Li-Circuits Tse Ntle (SVC) - bakeng sa maqhama a nakoana a tšoarellang nako e le 'ngoe feela
Molaho oa Relay o finyelloa hantle ho feta ts'ebetso ea X.25 ka theko e tlaase haholo-holo ha o etse phoso e lokisoang (eo ho e-na le hore e laoloe likarolong tse ling tsa marang-rang), ho fokotsa haholo latency ea marang-rang . E boetse e tšehetsa boholo ba lipakete tse bolelele ba mefuta e mengata bakeng sa tšebeliso e sebetsang ea networkwidth .
Keepsake Box Relay e sebetsa ka holim'a fiber optic kapa mela ea SDN mme e ka tšehetsa mefuta e sa tšoaneng ea marang-rang a marang-rang a kenyeletsang Internet Protocol (IP) .
Relay Framework ea Tshebetso
Mohala oa Relay o tšehetsa litekanyetso tsa litekanyetso tse tloaelehileng tsa T1 le T3 - 1.544 Mbps le 45 Mbps, ka ho latellana, ka ho kopana ka bomong ho fihlela ho 56 Kbps. E boetse e tšehetsa li-fiber tse ka bang 2.4 Gbps.
Tsela e 'ngoe le e' ngoe e ka lokisoa ka Committed Information Rate (CIR) eo protocol e bolokang ka ho sa feleng. CIR e na le tekanyo e fokolang ea lits'ebeletso eo kopano e lokelang ho lebella ho e fumana tlas'a maemo a tsitsitseng ('me e ka fetisoa ha sekahare sa' mele se na le bokhoni bo lekaneng ba ho tšehetsa litlhaku). Moqolo oa Relay ha o thibele mosebetsi o moholo ho o mong oa CIR empa o boetse o lumella sephethephethe se phatlohileng, moo mohokahanyo oa nakoana (ka tloaelo ho fihlela metsotso e 2) o feta CIR ea oona.
Litaba tse nang le Moralo oa Motlakase
Moqolo oa Relay o ne o fana ka mokhoa o theko e tlaase oa lik'hamphani tsa thelevishene ho fetisetsa boitsebiso ka maeto a malelele. Theknoloji ena e fokotsehile ka mokhoa oa ho tsebahala ha lik'hamphani li ntse li fallela mekhoa ea tsona ho tse ling tse rarollang tse ling tsa Internet Protocol (IP) .
Lilemong tse fetileng, ba bangata ba ne ba talima mokhoa oa ho fetisetsa li-Asynchronous Mode (ATM) le Frame Relay e le baphōlisano ka ho toba. Theknoloji ea ATM e fapana haholo le Framework Relay, leha ho le joalo - ho sebelisa bolelele bo tsitsitseng ho e-na le lipakete tsa bolelele bo fapaneng le ho hloka hore ho sebelisoe hardware e theko e boima haholo.
Moqolo oa Relay o qetelle o e-na le tlhōlisano e matla haholo ho tloha ho MPLS - Multi-Protocol Label Switching. Mekhoa ea MPLS e se e sebelisoa haholo ho li-routers tsa Inthanete ho fana ka tharollo ea Virtual Private Network (VPN) tharollo eo pele e neng e tla hloka Frame Relay kapa liphetoho tse tšoanang.