1ãLAC:location area code ä½ç½®åºç ï¼ç§»å¨éä¿¡ç³»ç»ä¸ï¼,æ¯ä¸ºå¯»å¼è设置çä¸ä¸ªåºåï¼è¦çä¸çå°çåºåï¼åæä¸è¬æè¡æ¿åºååå,ç°å¨å¾çµæ´»äºï¼æ寻å¼éååãå½ä¸ä¸ªLACä¸ç寻å¼éè¾¾å°ä¸ä¸ªé¢è¦é¨éï¼å°±å¿ é¡»æåã 为äºç¡®å®ç§»å¨å°çä½ç½®ï¼æ¯ä¸ªGSMPLMNçè¦çåºé½è¢«ååæ许å¤ä½ç½®åºï¼ä½ç½®åºç (LAC)åç¨äºæ è¯ä¸åçä½ç½®åºãä¸ä¸ªä½ç½®åºå¯ä»¥å å«ä¸ä¸ªæå¤ä¸ªå°åºã
2ãLACå ¨ç§°ä¸ºL2TP访é®éä¸å¨ï¼L2TP Access Concentratorï¼ãLACä½äºè¿ç¨æ¨å·ç¨æ·åLNS设å¤ä¹é´ï¼è´è´£è¿ç¨æ¨å·ç¨æ·åLNS设å¤å½¼æ¤é´çæ°æ®è½¬åãä»LACåLNS转åæ°æ®éè¦å å©ç¨L2TPåè®®å¨ä¸¤ä¸ªè®¾å¤ä¹é´å»ºç«é§éï¼LACåè¿ç¨æ¨å·ç¨æ·é´ä»ä½¿ç¨PPPé¾è·¯ã
3ãLACå ¨ç§°Love Across the Coast.æ¯ç±å¨ç¾å½æ¼è·è²å¥³åæçå¦é¢çä¸å½çå¦çç»ç»æç«çå ¬çç»ç»ï¼çå¿äºä¸å½æè²ï¼æ¯å¹´æåå¨ä¸å½éä¸äºçº¿äº¤éç»æµæ¬ åè¾¾çåå¸ä¸¾åå¤ä»¤è¥ï¼å¸®å©é£éçå¦çå¼éç¼çã
4ãLACæ¯é¿æå¹³åææ¬çè±ælong average costç缩åã
5ãLACæç´«è¶ã