________ _______3.4.  Token Ring (802.5)      229



  Token Ring     IBM   
  IEEE 802.5,     -
,    IBM.

   Token Ring    ,  -
         
  . -      
.

     :  0 ()  7 (). 
          
 ,       .

  Token Ring    : 4  16 /   
      , 
 ,   - .  
    260,      4 .

  Token Ring   .   -
           -
  ,        .
        -
,     ,     
      beaconing.

      Token Ring    -
 .   4 /    5000 ,   
16 /   16 .       -
,      0.

   Token Ring       ,
 MSAU.   MSAU   -
 ,         
.      MSAU  100   STP
 45   UTP.

           -
 ,   .

         MSAU, -
     .

  Token Ring      , 
,      ,  
  Token Ring      
.