IiMylinking™ Network Packet Brokers ezixhaswa yiNetwork Traffic Dynamic Load Balancing:I-algorithm ye-Hash balance balance kunye ne-algorithm yokwabelana ngobunzima esekwe kwiseshoni ngokweempawu ze-L2-L7 layer ukuqinisekisa ukuba i-port output traffic dynamic yokulinganisela umthwalo.
Ii-Mylinking™ Network Packet Brokers zixhaswa yi-Real-time Traffic Detection:Ixhase imithombo ethi "Capture Physical Port (Data Acquisition)", "Packet Feature Description Field (L2 – L7)", kunye nolunye ulwazi ukuchaza isihluzo setrafikhi esiguquguqukayo, ukuze kuthathwe idatha yenethiwekhi ngexesha langempela yokufunyanwa kweendawo ezahlukeneyo, kwaye iya kugcinwa idatha yexesha langempela emva kokuba ithathwe kwaye ifunyenwe kwisixhobo ukuze ikhutshelwe uhlalutyo oluqhubekayo lwengcali yokusebenza okanye isebenzise iimpawu zayo zokuxilonga zesi sixhobo ukuze kuhlalutywe ngokubonakalayo okunzulu.
Usenokufuna ukwazi ukuba yintoni i-OSI Model 7 Layers?
Ngaphambi kokuba singene kwimodeli ye-OSI, kufuneka siqonde amagama athile asisiseko okunxibelelana ukuze kube lula kule ngxoxo ilandelayo.
Amaqhuqhuva
I-node yiyo nayiphi na isixhobo se-elektroniki esidityaniswe kwinethiwekhi, njengekhompyutha, iprinta, i-router, njl. Ii-node zinokudityaniswa ukuze zenze inethiwekhi.
Ikhonkco
Ikhonkco luqhagamshelwano olubonakalayo okanye olunengqiqo oludibanisa ii-nodes kwinethiwekhi, ezinokuba ziingcingo (ezifana ne-Ethernet) okanye ezingenazingcingo (ezifana ne-WiFi) kwaye zinokuba yi-point-to-point okanye i-multipoint.
Iprotocol
Iprotocol ngumthetho wee-nodes ezimbini kwinethiwekhi yokutshintshiselana ngedatha. Le mithetho ichaza i-syntax, i-semantics, kunye nokuvumelanisa ukudluliselwa kwedatha.
Inethiwekhi
Inethiwekhi ibhekisa kwingqokelela yezixhobo, ezinje ngeekhompyutha, iiprinta, ezenzelwe ukwabelana ngedatha.
I-Topology
I-Topology ichaza indlela ii-nodes kunye neekhonkco ezicwangciswe ngayo kwinethiwekhi kwaye yinto ebalulekileyo yesakhiwo senethiwekhi.
Yintoni imodeli ye-OSI?
Imodeli ye-OSI (Open Systems Interconnection) ichazwa yi-International Organisation for Standardization (ISO) kwaye yahlulahlula iinethiwekhi zekhompyutha zibe ngamanqanaba asixhenxe ukunceda unxibelelwano phakathi kweenkqubo ezahlukeneyo. Imodeli ye-OSI ibonelela ngoyilo oluqhelekileyo lwesakhiwo senethiwekhi, ukuze izixhobo ezivela kubavelisi abahlukeneyo zikwazi ukunxibelelana.
Iileya ezisixhenxe zemodeli ye-OSI
1. Umaleko woMzimba
Unoxanduva lokudlulisa imijelo ye-bit eluhlaza, uchaza iimpawu zemidiya ebonakalayo efana neentambo kunye nemiqondiso engenazingcingo. Idatha idluliselwa kwiibhiti kule leya.
2. Uludwe lweKhonkco lweDatha
Iifreyimu zedatha zidluliselwa ngesignali ebonakalayo kwaye zinoxanduva lokufumanisa iimpazamo kunye nokulawula ukuhamba kwamanzi. Idatha icutshungulwa kwiifreyimu.
3. Umaleko weNethiwekhi
Inoxanduva lokuthutha iipakethi phakathi kweenethiwekhi ezimbini nangaphezulu, ukuphatha uthutho kunye nokuthumela iidilesi ezichanekileyo. Idatha icutshungulwa kwiipakethi.
4. Umgangatho woThutho
Ibonelela ngokuhanjiswa kwedatha ukusuka ekuqaleni ukuya ekupheleni, iqinisekisa ukuthembeka kwedatha kunye nolandelelwano, kubandakanya iprotokholi eqondiswe kuqhagamshelwano i-TCP kunye neprotokholi engenanxibelelwano i-UDP. Idatha ikwiiyunithi zamacandelo (TCP) okanye iidathagram (UDP).
5. Umgangatho weSeshini
Ukulawula iiseshoni phakathi kwezicelo, uxanduva lokusekwa kweeseshoni, ukugcinwa, kunye nokupheliswa kwazo.
6. Umgangatho weNtetho
Phatha ukuguqulwa kwefomathi yedatha, ukufakwa kwekhowudi koonobumba, kunye nokubethela idatha ukuqinisekisa ukuba idatha ingasetyenziswa ngokuchanekileyo ngumaleko wesicelo.
7. Umaleko wesicelo
Inika abasebenzisi iinkonzo zenethiwekhi ngqo, kuquka usetyenziso kunye neenkonzo ezahlukeneyo, ezifana ne-HTTP, i-FTP, i-SMTP, njl.
Injongo yomaleko ngamnye wemodeli ye-OSI kunye neengxaki zayo ezinokubakho
Umaleko 1: Umaleko Obonakalayo
Injongo: Umaleko obonakalayo ujongene neempawu zazo zonke izixhobo ezibonakalayo kunye nemiqondiso. Unoxanduva lokudala nokugcina unxibelelwano lokwenyani phakathi kwezixhobo.
Ukulungisa ingxaki:
○Jonga ukuba iintambo kunye nezihlanganisi azinamonakalo na.
○Qinisekisa ukuba izixhobo ezibonakalayo zisebenza ngokufanelekileyo.
○Qinisekisa ukuba umbane uqhelekile.
Umaleko 2: Umaleko woQhagamshelo lweDatha
Injongo: Umaleko wekhonkco ledatha uhlala phezu komaleko obonakalayo kwaye unoxanduva lokuvelisa isakhelo kunye nokufunyanwa kweempazamo.
Ukulungisa ingxaki:
○Iingxaki ezinokwenzeka zomaleko wokuqala.
○Ukusilela konxibelelwano phakathi kwama-node.
○Ukuxinana kwenethiwekhi okanye ukungqubana kweefreyimu.
Umaleko 3: Umaleko weNethiwekhi
Injongo: Umaleko wenethiwekhi unoxanduva lokuthumela iipakethi kwidilesi yendawo ekuyiwa kuyo, uphatha ukhetho lwendlela.
Ukulungisa ingxaki:
○Qinisekisa ukuba ii-routers kunye neeswitshi zicwangciswe ngokuchanekileyo.
○Qinisekisa ukuba idilesi ye-IP icwangciswe ngokuchanekileyo.
○Iimpazamo ze-link-layer zinokuchaphazela ukusebenza kwale layer.
Umaleko 4: Umaleko woThutho
Injongo: Umaleko wothutho uqinisekisa ukuhanjiswa kwedatha okuthembekileyo kwaye uphatha ukwahlulwahlulwa kunye nokuhlelwa kwakhona kwedatha.
Ukulungisa ingxaki:
○Qinisekisa ukuba isatifikethi (umz., i-SSL/TLS) siphelelwe lixesha.
○Jonga ukuba i-firewall iyayivala na i-port efunekayo.
○Ingqwalasela ephambili yetrafikhi imiselwe ngokuchanekileyo.
Umaleko 5: Umaleko weSeshini
Injongo: Umgangatho weseshoni unoxanduva lokuseka, ukugcina kunye nokuphelisa iiseshoni ukuqinisekisa ukudluliselwa kwedatha kwicala ngalinye.
Ukulungisa ingxaki:
○Jonga imeko yeseva.
○Qinisekisa ukuba ulungiselelo lwesicelo luchanekile.
○Iiseshoni zinokuphela okanye ziphele.
Umaleko 6: Umaleko woBoniso
Injongo: Umaleko wentetho ujongana nemiba yokufometha idatha, kubandakanya ukubethela kunye nokususa ukubethela.
Ukulungisa ingxaki:
○Ngaba kukho ingxaki ngomqhubi okanye isoftware?
○Nokuba ifomathi yedatha ihlalutywe ngokuchanekileyo na.
Umaleko 7: Umaleko woSetyenziso
Injongo: Umaleko wesicelo ubonelela ngeenkonzo zomsebenzisi ngqo kwaye usetyenziso olwahlukeneyo lusebenza kolu maleko.
Ukulungisa ingxaki:
○Usetyenziso lulungiselelwe ngokuchanekileyo.
○Nokuba umsebenzisi ulandela ikhondo elichanekileyo lesenzo.
Umahluko phakathi kwemodeli ye-TCP/IP kunye nemodeli ye-OSI
Nangona imodeli ye-OSI ingumgangatho wonxibelelwano lwenethiwekhi olusekelwe kwithiyori, imodeli ye-TCP/IP ngumgangatho wenethiwekhi osetyenziswa kakhulu. Imodeli ye-TCP/IP isebenzisa isakhiwo esinobume obuphezulu, kodwa ineeleya ezine kuphela (umaleko wesicelo, umaleko wothutho, umaleko wenethiwekhi, kunye nomaleko wekhonkco), ezihambelana ngolu hlobo lulandelayo:
Umaleko wesicelo se-OSI <--> Umaleko wesicelo se-TCP/IP
Umaleko wothutho lwe-OSI <--> Umaleko wothutho lwe-TCP/IP
Umaleko wenethiwekhi ye-OSI <--> Umaleko wenethiwekhi ye-TCP/IP
Umaleko wekhonkco ledatha ye-OSI kunye nomaleko obonakalayo <--> umaleko wekhonkco le-TCP/IP
Ngoko ke, imodeli ye-OSI enamaleko asixhenxe inika isikhokelo esibalulekileyo sokusebenzisana kwezixhobo zenethiwekhi kunye neenkqubo ngokwahlulahlula ngokucacileyo zonke iinkalo zonxibelelwano lwenethiwekhi. Ukuqonda le modeli akuncedi nje kuphela abalawuli benethiwekhi ekusombululeni iingxaki, kodwa kukwabeka isiseko sophando kunye nophando olunzulu lwetekhnoloji yenethiwekhi. Ndiyathemba ukuba ngale ntshayelelo, ungayiqonda kwaye uyisebenzise ngokunzulu ngakumbi imodeli ye-OSI.
Ixesha leposi: Novemba-24-2025
