 2.   TCP/IP_____________________________49

  Ethernet  , ,   
 multicast-IP-     -
  . , . "   IP- ( D)",
,      
IP, IP-        IP-
 , . .      -
     ,     IP-
      Ethernet   .

IP-   ,    
RFC-1112,  Ethernet multicast-  : 23  -
 IP-    23    Ethernet-
.

, IP- 224.1.10.111    01-00-5E-01-OA-6F.
   IP-   28 , 
multicast Ethernet-     31 IP-.

Multicast- Ethernet   Internet,  ,  -
  IP-mulicast-.

     Ethernet- : RFC-1112.

 IP   Token Ring  FDDI

       IP  -
 Ethernet,       
IP    Ethernet.     
 IP     ,   -
       Ethernet    Token Ring 
FDDI (Fiber Distributed Data Interface).

Token Ring  FDDI      .  
       , 
.      .  ,
 ,     ,   -
     .   
      .

  ,  ,    ,
  ,      (   
   ),   , 
  ,        -
 .

     ,    -
,   ,   , -
 .     ,   -
   ,   
  .    -