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1.1 ´«ÊäÍøÂç ...........................................................................................................................................

1.1.1 ´«Êäϵͳ ................................................................................................................................... 1

1.1.2 ´«Êä½éÖÊ ................................................................................................................................... 2

1.2 ¹âÏËͨÐÅ ...........................................................................................................................................

1.2.1 ¹âÏËͨÐÅϵͳ ........................................................................................................................... 3

1.2.2 ¹âÏ˵ÄÔ­ÀíÓë½á¹¹ ................................................................................................................... 4

1.2.3 ¹âÏ˵ÄÌØÐÔ ............................................................................................................................... 5

1.2.4 ¹âÏËͨÐŵÄÓÅȱµã ................................................................................................................... 9

1.2.5 ¹âÏ˵ķÖÀà ............................................................................................................................. 10

1.2.6 ¹âÀ ......................................................................................................................................... 13

1.3 µçÐÅ´«ÊäÍøÂç½á¹¹ ....................................................................................................................... 15

µÚ2 Õ SDH Ïà¹Ø¼¼Êõ ............................................................................................................................... 19

2.1 SDH ¼¼Êõ ........................................................................................................................................ 19

2.1.1 SDH ¸ÅÄî¼°ÆäÌصã ................................................................................................................ 19

2.1.2 SDH ÍøÂçµÄ½Úµã½Ó¿ÚËÙÂʼ°Ö¡½á¹¹ .................................................................................... 24

2.1.3 SDH ÍøÂçµÄͬ²½¸´ÓÃÓëÓ³É䷽ʽ ........................................................................................ 28

2.1.4 SDH ÍøÂçµÄ±£»¤ .................................................................................................................... 32

2.2 MSTP ¼¼Êõ ..................................................................................................................................... 38

2.2.1 MSTP µÄ¸ÅÄî¼°Ìصã .............................................................................................................. 38

2.2.2 MSTP ¹¦ÄÜÄ£ÐÍ ...................................................................................................................... 39

2.3 ͬ²½Íø¼¼Êõ ..................................................................................................................................... 40

2.3.1 ƵÂÊͬ²½ ................................................................................................................................. 41

2.3.2 ʱ¼äͬ²½ ................................................................................................................................. 43

2.3.3 ÒµÎñÍøͬ²½ÒªÇó ..................................................................................................................... 45

2.3.4 ͬ²½Íø²¿Êð²ßÂÔ ..................................................................................................................... 47

µÚ3 Õ WDM¼¼Êõ ....................................................................................................................................... 54

3.1 WDM ¸ÅÊö ......................................................................................................................................

3.1.1 WDM ²úÉúµÄ±³¾°¼°Ô­Àí ...................................................................................................... 54

3.1.2 WDM ¼¼ÊõµÄÖ÷ÒªÓŵã .......................................................................................................... 55

3.2 WDM ϵͳµÄ·ÖÀà .....................................