58    1      

 (switch, switching hub)      
  .        ,   
   ,     
  ,     -
      .    
     
 ,    .  ,  -
     ,     -
 .

,         -
 ,    ,    ,    
        (router). -
     ,  ,  
     .    -
   ,     -
,    .       , 
  ,      ,  
 ,      (subnet).

       
 . ,       
,        
  . ,   . 1.19,   
 (. . 1.18) ,     1  2 -
  ,       -
 ,      .

/  3

 1

  2	Map|	 1 	 ^^-0 ^^-ITOp ^'^-(^)
				 3		
					I		
				ll -		
		 2 	

. 1.19.      

        -
    ,      -
,  Ethernet  .25.

        
(gateway).   ,      , -
         
 ,     .    
        .

        -
.         -

