(ED)     (FS).     ।
 થ஢  ⮢.

ॠ㫠	砫 ࠧ⥫	஫ 	楢 ࠧ⥫	 

  ,  
. 5.12. થ FDDI

 . 5.13 ।⠢  FDDI. ⬥⨬ 室⢮   
㦥 ᬮ७  ⮬ IEEE 802.5.  FDDI ⠪,  
  ᮡ, ७ ஫  ஢ MAC 
짮⥫᪨ .

ॠ㫠	SD	FC	DA SA	INFO	FCS	ED	FS

DA/SA  2  6                                  1/2

  ,  
. 5.13.  FDDI

   FDDI  ᫥騥 祭:

 ॠ㫠.   ।祭  ᨭ஭樨. ᬮ
 ,  砫쭮  ⮣  ࠢ 64  (16 ᨬ
㡠⮢), 㧫  ᪨    ᮮ⢥⢨ 
᢮ ॡﬨ  ᨭ஭樨.

 砫 ࠧ⥫ (SD). 쭮 ᨬ쭮 (-
⮢) , ।祭  䨪樨 砫 .

 ஫  (FC). ᨬ쭮 (1 ⮢) , 饥
 ᫥ ⥩:

 L FF 

  ⠭  ,  ।, 㤥 
 ᯮ짮  ᨭ஭  ᨭ஭ . 
L -    ,    16  48
 ( ⫨稥  Ethernet  Token Ring  ᪠ ᯮ짮-
    ᮢ ⮩  㣮 ).  FF (ଠ
) ।, ਭ   ஢ MAC (..

⮪,    149