106                                                                Internet

  OSPF

   OSPF-.  OSPF-  
 24-  (. 2.31).

                  8                   16                                  31
Version              Type                     Packet Length

Router ID
Area ID

Checksum                                 Autype
Authentication
Authentication Data

. 2.31.   OSPF-

Version (1 ).     OSPF- , -
  .

Type (1 ).    ,      :

Type = 1  Hello

Type =2  Database Description

Type =3  Link-State Request

Type == 4  Link-State Update

Type =5  Link-Sate Acknowlegement

 Hello.       -
    .   -
,   ,    -
       ,  -
    .    
   Hello-.

 Database Description.     .
      
, . .    
.       
 .      
"" (poll-responce),      -
  master,    slave. , master -
  , a slave     .