小可的邮箱 [email protected]感谢各位高手。(我就这么多分了)     
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          |                   |   交换机      |           
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          |                   | C2500 |C3640  |       |
          |-------------------|-------|-------|-------|----- 
          |           | 辽宁  |  100  |  100  |       |
          |   东北    |-------|-------|-------|-------|----- 
          |           | 吉林  |  100  |  100  |       |
           -------------------|-------|-------|-------|----- 
          |           |       |       |       |       |
          |           |-------|-------|-------|-------|----- 
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