186     3     

   802.1,     
 ,        
   .       -
   (internetworking).    
,   802. ID,    /-
,  802.1,    ,  -
     Ethernet  FDDI, Ethernet  Token Ring
 . .   ,   802.1, -
 . ,      802.1Q, -
      VLAN    
.

 802.3, 802.4, 802.5  802.12    ,
      ,   
. ,   802.3   Ethernet, 
 Digital, Intel  Xerox ( Ethernet DIX),  802.4 
   ArcNet  Datapoint Corporation,   802.5
    Token Ring  IBM.

        -
 802.       . ,
 ArcNet          
802.4 (   ,   -   1993  
 ArcNet  ).    Token Ring
  802.5   ,    IBM -
        802.5  
     .  -
  Ethernet.    Ethernet DIX  
 1980 ,           -
 Ethernet.      Ethernet   
     802.3.

       , 
  ,     
 IEEE 802  .     Fast
Ethernet, lOOVG-AnyLAN, Gigabit Ethernet.   
   ,       
   ,      -
  .

  802    ,   -
   ,    :

 802.1  Internetworking   ;

 802.2  Logical Link Control, LLC     ;

 802.3  Ethernet    CSMA/CD;

 802.4  Token Bus LAN       Token Bus;

 802.5  Token Ring LAN       Token Ring;

 802.6  Metropolitan Area Network, MAN   ;

 802.7  Broadband Technical Advisory Group   
   ;