_____________________________3.3.  Ethernet (802.3)       197

  .       
 ,    ,    
   ,    
Ethernet.      .   -
      Ethernet  ,
         .
       
, , ,       -
,    ,    Fast Ethernet.

 ,    CSMA/CD    -
,   -     . ,  
     ,    -
 ,   1,     .
          ,
   Ethernet  .    
   Token Ring  FDDI,  Demand Priority  100VG-
AnyLAN     .

     

        -
    Ethernet.  -   
   ,      ,   
  . -      
,       (, - -
  ).  ,    -
  -   ,  
 ,    .   
        -
   (    )   
 ,    Ethernet. 
        Ethernet,   -
        .

       -
:

   > PDV

1 nun <   " i

 Tmin      ,  PDV  ,  
        .  
          
    (     ,  
      ),   -
     (Path Delay Value, PDV).

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  .

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