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FDDI (Fiber Distributed Data Interface) | |
¼³¸í | ANSI Ç¥ÁØ ÅäÅ« Àü¼Û ³×Æ®¿öÅ©. ±¤¼¶À¯ ÄÉÀ̺íÀ» »ç¿ëÇϸç ÃÖ´ë 2KmÀÇ °Å¸®¿¡ ÃÊ´ç 100MbpsÀÇ Àü¼Û¼Óµµ¸¦ °¡Áø´Ù. FDDI´Â ÀÌ´õ³Ý°ú ÅäÅ« ¸µ°ú °°Àº ¼öÁØÀÇ ³×Æ®¿öÅ© ¼ºñ½º¸¦ Á¦°øÇÑ´Ù.(OSIÃþ 1, 2) FDDI´Â MANÀ̳ª LANÀ¸·Î »ç¿ëµÇ¸ç ³×Æ®¿öÅ© °ü¸® Ç¥ÁØÀ¸·Î FDDI¸¸ÀÇ ½ºÅ×ÀÌ¼Ç °ü¸®(STM)¶ó´Â °ÍÀ» Æ÷ÇÔÇÏ°í ÀÖ´Ù. TP-PMD(CDDI) ¹öÀüÀÌ ÃÖ´ë 100mÀÇ °Å¸® Á¦ÇÑ¿¡µµ ºÒ±¸ÇÏ°í ±¸¸®º¸´Ù ¸¹ÀÌ ¾²ÀδÙ.(UTP) FDDI´Â ¿É¼ÇÀ¸·Î ù¹ø° ¸µ(primary ring)°ú, ¹Ý´ëµÇ´Â µ¥ÀÌÅÍ È帧À» °¡Áø µÎ¹ø° ¸µ(secondary ring)À» °¡Áö´Â ¡°ÀÌÁß Ä«¿îÅÍ-¼øȯ ¸µ¡±(dual counter-rotating ring) À̶ó´Â °ÍÀ» Á¦°øÇÑ´Ù. ±×·¡¼ ¸¸¾à ȸ¼±ÀÌ ²÷¾îÁö°Ô µÇ¸é °¡Àå °¡±îÀÌ¿¡ ÀÖ´Â ³ëµåÀÇ Ã¹¹ø° ¸µ°ú µÎ¹ø° ¸µÀÌ ¿¬°áµÇ¾î »õ·Î¿î ´ÜÀÏ ¸µÀ» »ý¼ºÇÑ´Ù. |
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