é»è¾é¾è·¯ Logical Links
ããLogical Links é»è¾é¾è·¯é»è¾é¾è·¯æ¯å®é
çµè·¯æé»è¾çµè·¯ä¸äº¤æ¢éä¿¡ä¿¡æ¯ç两个端系ç»ä¹é´çä¸ç§å议驱å¨éä¿¡ä¼è¯ãåè®®æ å®ä¹äºä¸¤ä¸ªç³»ç»å¨æç§ä»è´¨ä¸çéä¿¡ãå¨åè®®æ ä½å±å®ä¹å¯ç¨çå¤ç§ä¸åç±»åçéä¿¡åè®®ï¼å¦å±åç½ç»(LAN)ãååç½(MAN)å象Xï¼25æ帧ä¸ç»§è¿æ ·çåç»äº¤æ¢ç½ç»ãé»è¾é¾è·¯å¨ç©çé¾è·¯(å¯ä»¥æ¯é线ãå
纤æå
¶ä»ä»è´¨)ä¸ç两个éä¿¡ç³»ç»ä¹é´å½¢æãæ ¹æ®OSIå议模åï¼è¿äºé»è¾é¾è·¯åªå¨ç©çå±ä»¥ä¸åå¨ãä½ å¯ä»¥è®¤ä¸ºé»è¾é¾è·¯æ¯åå¨äºç½ç»ä¸¤ä¸ªæ«æç³»ç»é´ç线路ãã
ããé¢åè¿æ¥çæå¡ ä¸ºäºä¿è¯å¯é çéä¿¡ï¼éè¦å»ºç«é»è¾çº¿è·¯ï¼ä½å¨ä¸¤ä¸ªç«¯ç³»ç»é´è¦ç»´æä¼è¯ãã
ããé¢åéè¦åºçè¿æ¥çæå¡ åç»ä¼ è¾å¹¶æè¿åä¿¡å·çé»è¾çº¿è·¯ãè¿ç§æå¡äº§çæ´å¤§çå¼éï¼ä½æ´å å¯é ãã
ããæ åºçä¸è¿æ¥æå¡ æ éåºçåé¢å
çä¼ éãå¨ç«¯ç³»ç»é´æ²¡æä¼è¯ãã
ããOSIåè®®æ ä¸çæ°æ®é¾è·¯å±å¯è¿ä¸æ¥ç»å为è¾ä½çä»è´¨è®¿é®æ§å¶(MAC)åå±åè¾é«çé»è¾é¾è·¯æ§å¶(LLC)åå±ãå½å®æ¥æ¶å°ä¸ä¸ªåç»åï¼å®ä»MACåå±åä¸ä¼ éãå¦ææå¤ä¸ªç½ç»å设å¤ç¸è¿ï¼LLCå±å¯è½å°åç»éç»å¦ä¸ä¸ªç½ç»ãä¾å¦ï¼å¨ä¸ä¸ªNetWareæå¡å¨ä¸ï¼ä½ å¯è½æ¢å®è£
äºä»¥å¤ªç½ç»éé
å¨åå®è£
äºä»¤çç½ç»éé
å¨ï¼NetWareèªå¨å°å¨è¿æ¥å°éé
å¨çç½ç»é´æ¡¥æ¥ï¼è¿æ ·åæ¥å¨ä»¥å¤ªç½ä¸çåç»å°±å¯ä»¥ä¼ éå°ä»¤çç½ä¸çç®çå°äºï¼LLCå±å°±è±¡ç½ç»æ®µé´ç交æ¢æé¾è·¯ä¸ç»§ï¼å®å°ä»¥å¤ªç½ç帧éè£
æ令çç¯ç½ç帧ãã
ããç¸å
³æ¡ç®ï¼Connection-Oriented and Connectionless Protocolsé¢åè¿æ¥åæ è¿æ¥åè®®ï¼Data-Link Layer OSI Model OSI模åçæ°æ®é¾è·¯å±ï¼Layered Architectureåå±ä½ç³»ç»æï¼Open Systems Interconnection Model å¼æ¾å¼ç³»ç»äºè模åï¼Protocol Stackåè®®æ ã
温馨提示:答案为网友推荐,仅供参考