âûáîðêà | îïèñàíèå |
LAYER 4
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- òðàíñïîðòíûé óðîâåíü (Transport layer) â ìîäåëè OSI. Îáåñïå÷èâàåò äîñòàâêó ìåæäó êîíå÷íûìè òî÷êàìè....
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TLS (TRANSPORT LAYER SECURITY )
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- (çàùèòà òðàíñïîðòíîãî óðîâíÿ) -- ðåçóëüòàò äàëüíåéøåãî ðàçâèòèÿ SSL (Secure Sockets Layer - óðîâåíü çàùèù¸ííûõ ñîêåòîâ) âåðñèè 3.0 (ðàçðàáîòàííîãî Netscape)....
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TRANSPORT LAYER (ÒÐÀÍÑÏÎÐÒÍÛÉ ÓÐÎÂÅÍÜ)
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- óðîâåíü ìîäåëè OSI, îòâå÷àþùèé çà íàäåæíóþ ïåðåäà÷ó äàííûõ ìåæäó êîíå÷íûìè ñèñòåìàìè....
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LAYER 3
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- ñåòåâîé óðîâåíü (Network layer) â ìîäåëè OSI. Îòâå÷àåò çà àäðåñàöèþ è ìàðøðóòèçàöèþ ïðè ìåæñåòåâîì îáìåíå....
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LAYER 2
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- óðîâåíü êàíàëà ïåðåäà÷è äàííûõ (Data link layer) â ìîäåëè OSI. Îòâå÷àåò çà ïðèåì è ïåðåäà÷ó ïàêåòîâ, ñåðâèñ íà óðîâíå äýéòàãðàìì, ëîêàëüíóþ àäðåñàöèþ è êîíòðîëü îøèáîê....
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CLTP (CONNECTIONLESS TRANSPORT PROTOCOL)
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- îáåñïå÷èâàåò ñêâîçíóþ (end-to-end) àäðåñàöèþ ïåðåäà÷è äàííûõ (ñ ïîìîùüþ Transport selector) è êîíòðîëü îøèáîê (ñ ïîìîùüþ êîíòðîëüíîé ñóììû), íî íå ìîæåò ãàðàíòèðîâàòü äîñòàâêó èëè îáåñïå÷èâàòü óïðàâëåíèå ïîòîêîì.  OSI ÿâëÿåòñÿ ýêâèâàëåíòîì UDP....
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DEC LAT (DEC LOCAL AREA TRANSPORT)
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- òîðãîâàÿ ìàðêà äëÿ êîììóíèêàöèîííîãî ïðîòîêîëà êîìïàíèè DEC, îáåñïå÷èâàþùåãî ïîäêëþ÷åíèå òåðìèíàëîâ ê ñåòè DECnet....
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TP4: OSI TRANSPORT PROTOCOL CLASS 4 (ERROR DETECTION AND RECOVERYCLASS)
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- íàèáîëåå ìîùíûé èç òðàíñïîðòíûõ ïðîòîêîëîâ OSI, ïîëåçíûé äëÿ ñåòåé ëþáîãî òèïà. TP4 ÿâëÿåòñÿ â OSI ýêâèâàëåíòîì TCP....
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XEROX NETWORK SYSTEMS` INTERNET TRANSPORT PROTOCOL
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- ñïåöèàëüíûé êîììóíèêàöèîííûé ïðîòîêîë èñïîëüçóåìûé â ñåòÿõ. Ôóíêöèè XNS/ITP ðàñïîëîæåíû íà óðîâíÿõ 3 è 4 ìîäåëè (OSI). Äàííûé ïðîòîêîë ñõîæ ñ TCP/IP....
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SESSION LAYER (ÑÅÀÍÑÎÂÛÉ ÓÐÎÂÅÍÜ)
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- óðîâåíü ìîäåëè OSI, îáåñïå÷èâàþùèé ñïîñîáû âåäåíèÿ óïðàâëÿþùåãî äèàëîãà ìåæäó ñèñòåìàìè...
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NETWORK LAYER (ÑÅÒÅÂÎÉ ÓÐÎÂÅÍÜ)
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- óðîâåíü ìîäåëè OSI, îòâå÷àþùèé çà ìàðøðóòèçàöèþ, ïåðåêëþ÷åíèå è äîñòóï ê ïîäñåòÿì ÷åðåç âñþ ñðåäó OSI....
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APPLICATION LAYER (ÓÐÎÂÅÍÜ ÏÐÈËÎÆÅÍÈÉ)
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- âåðõíèé óðîâåíü ìîäåëè OSI, îáåñïå÷èâàþùèé òàêèå êîììóíèêàöèîííûå óñëóãè, êàê ýëåêòðîííàÿ ïî÷òà è ïåðåíîñ ôàéëîâ....
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ADDRESS RESOLUTION (ÐÀÇÐÅØÅÍÈÅ ÀÄÐÅÑÀ)
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- èñïîëüçóåòñÿ äëÿ ïðåîáðàçîâàíèÿ àäðåñîâ ñåòåâîãî óðîâíÿ (Network Layer) â îáóñëîâëåííûå ñðåäîé (media-specific) àäðåñà....
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TP0: OSI TRANSPORT PROTOCOL CLASS 0 (SIMPLE CLASS)
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- ïðîñòåéøèé òðàíñïîðòíûé ïðîòîêîë OSI, ïîëåçíûé òîëüêî äëÿ ñåòåé X.25 (èëè äðóãèõ ñåòåé, ãäå íåâîçìîæíà ïîòåðÿ èë èñêàæåíèå äàííûõ)....
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SAP (SERVICE ACCESS POINT)
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- òî÷êà, â êîòîðîé óñëóãà êàêîãî-ëèáî óðîâíÿ OSI ñòàíîâèòñÿ äîñòóïíîé áëèæàéøåìó âûøåëåæàùåìó óðîâíþ. SAP èìåíóþòñÿ â ñîîòâåòñòâèè ñ óðîâíÿìè, îáåñïå÷èâàþùèìè ñåðâèñ: íàïðèìåð, Òðàíñïîðòíûå óñëóãè îáåñïå÷èâàþòñÿ ñ ïîìîùüþ Transport SAP (TSAP) íà âåðõíåé ÷àñ...
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