232     3     

   ,   FDDI  
    LLC,    IEEE 802.2.
 ,      FDDI    -
  ANSI,    IEEE,    
  802.



		 LLC 802.2	 F	DDI
				
				
				
		MAC		SMT
			4^ 4>	
		PHY		
				
		PMD		
			4>	

. 3.17.    FDDI

   FDDI   
  Station Management (SMT).   SMT   -
          FDDI.
        FDDI.  
    SMT   .

  FDDI     -
:          -
,  -  ,     MAC  
 ,         -
    .

3.5.2.    FDDI

         
  .        
 .

    FDDI     ( 
   ),     -
         
,       .  -
     (Token Rotation Time, TRT). 
TRT         -
    _0.    Token Ring  -
       (2,6   
260   ),    FDDI    
_0    .     
 _0,        -
  .     ,