112                                                _________ Internet

Sequence number (16 ).   .   -
   EGP,   , -
     .   -
  ,     
         
 -.

  EGP   .    -
     .

    ,   
  Internet, EGP   .  , 
EGP     ,  Internet    
 . -   EGP     -
   Internet   ,  -
   ,  , , BGP (Border
Gateway Protocol,   ).

    EGP  , ,  RFC-827,
RFC-888, RFC-904, RFC-1092.

BGP

  , EGP    , 
.        AS
,  ,    , ,   -
  .    BGP  -
     EGP.    EGP, -
 BGP     . BGP 
   AS,    -
  Internet. BGP     EGP.  
EGP,  BGP    " ".

BGP,      , 
    IP,   
 . ,    TCP BGP 
 179.        BGP
      -
.       
  BGP      -
.  ,  BGP     
AS,        AS.

  BGP    -
   BGP-      -
.         ,
. .      AS.  
   ,      AS 