Ukulayishwa kohlaka kungqimba lokuxhumeka kwedatha, ubuchwepheshe bepakethe yokuguquguquka kwenethiwekhi yepakethe yedijithali eyenzelwe ukuxhuma Izinethiwekhi Zendawo Yendawo (LANs) nokudlulisa idatha kuwo wonke ama- Wide Area Networks (WANs) . I-Frame Relay ihlanganyela ezinye zobuchwepheshe obufanayo njenge- X.25 futhi yazuza ukuthandwa okunye e-United States njengengqalasizinda engaphansi kwezinsizakalo ze- Integrated Services Digital Network (ISDN) ezithengiswa kumakhasimende ebhizinisi.
Yeka ukuthi i-Frame Relay isebenza kanjani
Ukusethwa kabusha kwe-Frame kusekela ukuxhumeka kwe-traffic kusuka ekuxhumaneni okuningi phezu kokuxhumanisa okwenziwe ngokuhlanganyela usebenzisa izingxenye zehadiwe ezikhethekile ezibandakanya ama-routers ohlaka, amabhuloho, kanye noshintsho oluthatha idatha kwimilayezo ngayinye ye-Frame Relay. Uxhumano ngalunye lusebenzisa isikhombisi sezintambo eziyishumi (10) se-Data Link Connection Identifier (DLCI) sokubhekana nesiteshi esiyingqayizivele. Izinhlobo ezimbili zokuxhumana zikhona:
- I-Circuits Virtual Engapheli (PVC) - ngokuxhumana okuqhubekayo okuhloswe ukuba kugcinwe isikhathi eside ngisho noma kungekho idatha idluliselwa ngokuzithandela
- Ushintshe ama-Circuits Virtual (SVC) - ukuxhumeka kwesikhashana okuhlala isikhathi esisodwa kuphela
I-Frame Relay iphumelela ukusebenza kangcono kune-X.25 ngezindleko eziphansi ngokuyinhloko okwenziwanga noma yiluphi ukulungiswa kwesiphambeko (okushiwo kulayishwe kwezinye izingxenye zenethiwekhi), ukunciphisa kakhulu ukuvinjwa kwenethiwekhi . Iphinde isekele ukuphakama kwamaphakethe ubude obude bokusebenzisa kahle ukusebenza komkhawulokudonsa wenethiwekhi .
I-Frame Relay isebenza ngaphezu kwe- fiber optic noma imigqa ye-SDN futhi ingase isekele izinhlelo ezihlukene zenethiwekhi yezinga eliphakeme kuhlanganise ne- Protocol Protocol (IP) .
Ukulayishwa kwe-Frame yokusebenza
I-Frame Relay isekela amanani wedatha wemigqa ejwayelekile ye- T1 ne-T3 - 1.544 Mbps ne-45 Mbps, ngokulandelana, ngokuxhumeka komuntu ngamunye kuya ku-56 Kbps. Iphinde isekele ukuxhumana kwefiber kuze kufike ku 2.4 Gbps.
Uxhumano ngalunye lungalungiswa nge- Committed Information Rate (CIR) ukuthi le protocol igcina ngokuzenzakalelayo. I-CIR ibhekisela kwisilinganiso esincane semininingwane ukuthi uxhumano kufanele lulindele ukuthola ngaphansi kwezimo ezisezingeni eliqinile (futhi lingadlulelwa lapho isixhumanisi esingokomzimba esincane sinekhono elanele lokubamba ukusekela izihloko). Ukulayishwa kohlaka akukhawulelanga ukusebenza okuphezulu kwaleyo ye-CIR kodwa futhi kuvumela ukuhamba kwe-traffic, lapho ukuxhumeka kungakapheli (okwesikhashana kuze kube kumasekhondi angu-2) kudlula i-CIR yayo.
Izinkinga ezine-Frame Relay
Ukubuyiswa kohlaka ngokujwayelekile kwanikeza indlela ebiza izindleko zezinkampani zokuxhumana ukuze kudluliswe idatha emadolobheni amakhulu. Lolu buchwepheshe selinciphile njengoba izinkampani zihamba kancane kancane zihambisa izimpahla zabo kwezinye izixazululo ezisuselwa ku- Intanethi ye-Intanethi (IP) .
Eminyakeni edlule, abaningi babheka indlela yokudlulisa i-Asynchronous Transfer Mode (ATM) ne-Frame Relay njengabancintisana ngqo. Ubuchwepheshe be-ATM buhluke kakhulu kusuka ku-Frame Relay, nokho -kusebenzisa ubude obuhleliwe kuneziphakethe ezide eziguquguqukayo futhi kudinga ihadiwe elibizayo ukusebenza.
Ukubuyiswa kohlaka ekugcineni kubhekana nokuncintisana okunamandla nakakhulu kusuka ku-MPLS - Multi-Protocol Label Switching. Amasu we-MPLS ase asetshenziselwa kakhulu kwi-routers ye-intanethi ukuze unike amandla ngokuphumelelayo izixazululo ze- Virtual Private (VPN) ngaphambili ezadinga ukulayishwa kwe-Frame noma izixazululo ezifanayo.