Iprotocol iqinisekisa ukuTshintswa kwedatha ethembekileyo
I-TCP (iProsoft Control Protocol) ngumgaqo obalulekileyo wenethiwekhi osetyenziselwa ukuhanjiswa kwedatha kwiinkonzo. Umgaqo-nkqubo, kwimixholo yenethiwekhi, isethi yemigaqo kunye neenkqubo ezilawula indlela ukudluliselwa kwedatha kwenziwa ngayo ukuze wonke umntu kwihlabathi lonke, azimeleyo kwendawo, isofthiwe okanye i-hardware esebenzayo, yenza into efanayo . I-TCP isebenza kunye ne- IP (iProtokholi ye-Intanethi) kwidesi eyaziwa ngokuba yiTCP / IP. Uyakubona eli gama kwisetyenziselwano somnatha wekhompyutheni yakho, i-smartphone yakho okanye ifowuni ephathekayo xa udlala ngeesetingi. Inxalenye ye-IP isebenza nokujongana nokudluliselwa kweepakethe zedatha ukusuka kumthombo ukuya kwindawo ekhoyo ngenkathi i-TCP ilawula ukuthembeka kokusasazwa. Kule nqaku, siza kubona ukuba yiyiphi i-TCP kwaye isebenza njani.
Yiyiphi i-TCP
Umsebenzi we-TCP kukulawula ukutshintshwa kwedatha enjalo ukuba inokuthenjwa. Kwiinkonzo ezifana ne-Intanethi, idatha idluliselwa kwiipakethi, eziyiyunithi zedatha ezithunyelwa ngokuzimeleyo kwinethiwekhi, kwaye ziphinde zihlangane xa zifika kwindawo ekuya kuyo ukubuyisela idatha yangaphambili.
Ukuthunyelwa kwedatha kwintanethi kwenziwa kwimiqathango, nganye inkqubo yokubeka ungqongqo ukwenza into ehambelana noko abanye abakwenzayo. Le setethi yamatye abizwa ngokuba yi-protocol stack. Umsebenzi we-TCP kunye ne-IP ngesandla kwisitaki, esinye ngaphezu kwesinye. Ngokomzekelo, kwinqanaba elilodwa, unakho u-HTTP-TCP-IP-WiFi. Oku kuthetha ukuba xa, umzekelo, ikhompyutha ifikelela kwikhasi lewebhu, isebenzisa i-protocol ye-HTTP ukufumana iphepha lewebhu kwi-HTML, i-TCP ilawula ukuhanjiswa, i-IP ukusakaza kwinethiwekhi (umz. Intanethi), kunye ne-WiFi ukuhanjiswa kwindawo yomnatha wendawo.
I-TCP, ngoko, inoxanduva lokuqinisekisa ukuthembeka ngexesha lokuthumela. Ukudluliselwa kwedatha enokwethenjelwa yinto enye efunekayo elandelayo. Iziganeko zinikwe ukuqonda kangcono umxholo.
- Zonke iipakethi zifikelela kwindawo ekuya kuyo, akuyikho ipakethi elahlekileyo. Awufuni ukuba iileta okanye izivakalisi zilahleke xa uthumela i-imeyili yakho okanye imiyalezo esheshayo.
- Akukho thuba eliya kuthintela umgangatho wwedatha. Ufuna incoko yakho ngexesha le- VoIP yakho okanye ukuhanjiswa komsindo ukuba kuhambelane, ukungaphumeleli apho amagama athethayo aya kuqondwa.
- Zonke iipakethi zedatha ziphinde zihlanganiswe ngokulandelelana. Ufuna amagama akho kwisivakalisi sakho se-imeyile ukuba abe ngumyalelo owabhala ngawo. Ngenye indlela, inyamazane ingadla ingonyama endaweni yokuxoxisana ngokwemvelo.
Indlela i-TCP isebenza ngayo
I-TCP ibhalela iipakethi zayo ezifana nokuba zibalwa. Kwakhona kuyaqinisekisa ukuba banomhla wokugqibela wokufikelela kwindawo (apho ubude bee-millisecond eziliqela ezibizwa ngokuba yixesha lokuphuma), kunye nezinye izibonelelo zobugcisa. Kwipakethi nganye efunyenwe, idilesi yokuthumela ikwaziswa ngepakethe ebizwa ukuba iyamkelwa. Igama lithetha konke. Ukuba emva kokuphuma kwexesha, akukho mvume efunyenweyo, umthombo uthumela enye ikopi yepakethe elahlekileyo okanye elibalekile. Iipakethi ezingaphandle kwe-oda nazo azivunyelwanga. Ngale ndlela, zonke iipakethi zihlala zihlanganiselwe ukulandelelana, ngaphandle kwemingxuma kunye nokulibaziseka kwangaphambili kunye nokwamkeleka.
TCP Ukuthetha
Ngelixa i-IP inesistim epheleleyo yokujongana needesi ze-IP , i-TCP ayinayo inkqubo yokulungisa idilesi. Akuyidingi. Isebenzisa kuphela amanani anikezelwe yicandelo esebenzayo ukufumanisa apho iyakwamkela kwaye ithumele amapakethe enkonzo. La manani abizwa ngokuba ngamachweba. Umzekelo, iiphequluli zewebhu zisebenzisa i-port 80 ye-TCP. I-Port 25 isetyenziswe okanye i-imeyile. Inombolo yefowuni idla ngokudibene nekheli le-IP yenkonzo, umz. 192.168.66.5:80