6.4.            563

  LEC  LES      -
  ,     .

  LEC         -
 ,     ,     -
   -  -  LES.  LES
  ,  -   LEC,  -
  ,   .  -, -
 LEC      
SVC     ,    UNI. 
   MAC      
  LEC     - -
 ( SAR)  .

-				^S.	& - AR	 PLAN? //~^,/ //'.	 	
								
							
	| LEC					
					 LES		
	SV		'Օ					VC AR		
					^ "					
					)  / Switch					
							^~^				
			/  / Switch		 Switch			
									
								S S^			
										J^J 11
						ILEC ATM-LAN 			
		| LEC ATM-LAN 						
	 	 	 								
							FDDI Ethernet Switch			
				AN							
													
												
								--^ ^^,			
											

PHI. 6.34.    LAN emulation

  LANE         -
   ,      -
,    BUS (Broadcast and Unknown Server).  
      , 
    .

        -
 .       , 