
ÊÛǰµç»°
135-3656-7657
ÊÛǰµç»° : 135-3656-7657
¹ú¼Ò¸ßм¼ÊõÆóÒµ Ê¡¼¶×¨¾«ÌØÐÂÆóÒµ
×ÉѯÈÈÏߣº135-3656-7657 400-6333-661
EPONϵͳ¹¦ÄܵÄʵÏÖÀë²»¿ª¸÷Öֹؼü¼¼Êõ£¬ÕâЩ¹Ø¼ü¼¼ÊõÖ÷Òª°üÀ¨²â¾à¡¢ÏµÍ³Í¬²½¡¢ QoSÒÔ¼°¶¯Ì¬´ø¿í·ÖÅäµÈ¡£ ²â¾à PONϵͳÔÚÏÂÐз½Ïò²ÉÓÃTDMµÄ¹ã²¥·½Ê½£¬¸÷¸öONU°´ÕÕLLIDÀ´ÅжÏÊôÓÚ×ÔÒѵÄЊϢ£¬Òò´ËÏÂÐз½Ïò²»»áÓÐʱ϶³åÍ»¡£µ«ÊǶÔÓÚÉÏÐз½Ïò£¬À´×Ô²»Í¬ONUµÄÉÏÐÐʱ϶ÓÉÓÚ²» ͬ¹â֧·µÄ·¾¶³¤¶Ì²»Í¬¶øÓпÉÄÜ»áͬʱµ½´ï¹âºÏ·Æ÷´Ó¶øÔì³É³åÍ»£¬ÕâʱÓÉÓÚOLTÎÞ·¨Õý È·ÅжϺÍÌáÈ¡³åÍ»µÄÐÅÏ¢£¬¾Í¿ÉÄÜ»áÒý·¢´óÁ¿µÄÎóÂë»òͬ²½¶ªÊ§£¬Ôì³Éϵͳ²»ÄÜÕý³£µØ¹¤×÷, Èçͼ2¡¹6Ëùʾ¡£Îª±ÜÃâÕâÖÖÇé¿öµÄ·¢Éú£¬±ØÐë²âµÃOLTµ½ONUµÄʱÑÓ£¬°²ÅŸ÷ONUÉÏÐРʱ϶ÒÔ±£Ö¤ËüÃDz»ÖصþµØ½øÐи´Óã¬ÕâÖÖ²âÁ¿µÄ¹ý³Ì¾Í½Ð×ö²â¾à¡£
ͼ2.16 EPONÉÏÐд«ÊäONUµÄʱ϶³åÍ»
²â¾àµÄÄ¿µÄÊDz¹³¥ÒòONUÓëOLTÖ®¼äµÄ¾àÀ벻ͬ¶øÒýÆðµÄ´«ÊäʱÑÓ²îÒ죬ʹËùÓÐONU ¸Ð¾õµ½ÓëOLTµÄÂß¼¾àÀëÏàͬ¡£ÓÉÓÚ¹âÏËÐŵÀ¾ßÓÐʱÑӽϴóµÄÌØµã£¬ONUÓëOLTÖ®¼äµÄ¾àÀ뽫»áÓ°Ïìµ½ÉÏÐÐÐŵÀµÄ¸´Óã¬Èç¹û׼ȷ²âÁ¿¸÷¸öONUµ½OLTµÄ¾àÀë²¢Äܾ«È·µØµ÷ÕûONU µÄ·¢ËÍʱÑÓ£¬Ôò¿ÉÒÔ¼õСONU·¢ËÍ´°¿Ú¼äµÄ¼ä¸ô£¬´Ó¶øÌá¸ßÉÏÐÐÐŵÀµÄÀûÓÃÂʲ¢¼õСʱÑÓ¡£ ²úÉú´«ÊäʱÑÓ²îÒìµÄ¸ùÔ´ÓÐÁ½¸ö£¬Ò»¸öÊÇÎïÀí¾àÀëµÄ²»Í¬£¬ÁíÒ»¸öÊÇÓÉ»·¾³Î¶ȵı仯ºÍ¹â µçÆ÷¼þµÄÀÏ»¯µÈÒòËØÔì³ÉµÄ¡£²â¾àµÄ³ÌÐòÒ²ÏàÓ¦µØ·ÖΪÁ½²½£ºµ±OLTÐèÒª²â¾àʱ£¬OLTÐγÉÒ»¸ö²â¾à´°¿Ú¹©±»²âONUʹÓá£OLT·¢ËÍÒ»¸ö²â¾àÐźţ¬ ONUÔÚ½ÓÊÕµ½Õâ¸öÐźźó£¬ÔÚ²â¾à´°¿Ú·¢ËÍÓ¦´ðÐźš£OLT½ÓÊÕÓ¦´ðÐźźó¼ÆËã³ö¾ùºâʱÑÓ Öµ¡£²ÉÓÃʵʱ¼à²âÉÏÐÐÐźţ¬ÎÞÐèÁíÍ⿪´°¡£ÕâÖÖ·½·¨µÄÓŵãÊÇÀûÓóÉÊìµÄÊý×Ö¼¼Êõ£¬ÊµÏÖ ¼òµ¥¡¢¾«¶È¸ß¡¢³É±¾µÍ¡£È±µãÊDzâ¾àÕ¼ÓÃÉÏÐдø¿í¡£ÀûÓúÏÀíµÄ´ø¿í·ÖÅäËã·¨Äܹ»ÔÚÒ»¶¨µÄ ³Ì¶ÈÉϱÜÃâÆä¶ÔÒµÎñQoSµÄÓ°Ïì¡£½ÓÈëÍø×îÃô¸ÐµÄÊdzɱ¾ÎÊÌ⣬ËùÒÔ£¬×ۺϿ¼ÂÇ£¬EPONÒË ²ÉÓôøÄÚ¿ª´°·¨²â¾à¼¼Êõ¡£
´øÄÚ¿ª´°·¨²â¾àÓÉOLTͨ¹ýʱ¼ä´ÁÔÚ¼à²âONUµÄ¼´²å¼´ÓÃQoSµÄͬʱ·¢ÆðºÍÍê³É£¬»ù ±¾¹ý³ÌÈçͼ2-17Ëùʾ¡£OLTÔÚHʱ¿Ìͨ¹ýÏÂÐÐÐŵÀ£¬ÀûÓÃQoS¹ã²¥Ê±Ï¶Í¬²½ÐźźͿÕÏÐʱ ϶±ê¼Ç¡£ONUÔÚ½Óµ½ÏûÏ¢ºó£¬Á¢¼´½«±¾µØÊ±ÖÓ¸üÐÂΪT1,ÔÚOLTÊÚȨONU·¢ËÍÏûÏ¢µÄʱ ¿Ì£¬ONU·¢ËÍÒ»¸öREPORTÏûÏ¢£¬¸ÃÏûÏ¢°üº¬ONUµÄµØÖ·¡¢·þÎñµÇ¼ÇµÈ²ÎÊý£¬´Ëʱ±¾µØÊ± ¼ä´ÁΪ72£» OLTÔÚ73ʱ¿Ì½ÓÊÕµ½REPORTÏûÏ¢£¬ÔòÓÉͼ2-17¿ÉÖª£¬OLTÓëONUÖ®¼äµÄÐÅ µÀÑÓʱ(RTT) = (73-H) - (72-H) =73-72,Ö®ºó£¬OLT±ãÒÀ¾ÝDBAÐÒéΪONU·ÖÅä´ø¿í¡£µ±ONUÀëÏߺó£¬ÓÉÓÚOLT³¤Ê±¼ä£¨Èç3min£©ÊÕ²»µ½ONUµÄʱ¼ä´Á±ê¼Ç£¬ÔòÅж¨ÆäÀëÏß¡£
ͼ2-17´øÄÚ¿ª´°·¨²â¾à»ù±¾Á÷³Ì
ϵͳͬ²½ ÓÉÓÚEPONΪ¶àµãµ½µãµÄÍØÆË½á¹¹£¬ÉÏÐйý³ÌÖУ¬Ã¿¸öONUµÄ·¢ËÍʱ϶±ØÐëÓëOLT·Ö ÅäµÄʱ϶±£³ÖÒ»Ö£¬ÒÔ·ÀÖ¹¸÷¸öONUÉÏÐÐÊý¾Ý·¢ÉúÅöײ£¬Òò´Ë£¬ONU²àµÄʱÖÓÓ¦ÓëOLT²à µÄʱÖÓͬ²½¡£