604     7      

         OSI  ,
4, CNLS,     -.   
SNMP     . ,  Novell  -
  SNMP   NetWare 3.11,    -
 (, Bay Networks)     
 SNMP    IP,   IPX.

 SNMP,       
,      .   
 ASN.1  SNMP     , 
       .

  SNMP     :  
(version),   (community),   -
 ,   ,   ,  -
       ,  
  .        (Protocol Data
Unit, PDU).

   SNMP   ASN.1   -
:

SNMP-Message ::=
SEQUENCE {

version INTEGER {
version-1 (0)

}.
community

OCTET STRING,
SNMP-PDUs

ANY
}

       PDU, -
    SNMP:

SNMP-PDUs ::-
CHOICE {

get-request

GetRequest-PDU,
get-next-request

GetNextRequest-PDU,
get-response

GetResponse-PDU,
set-request

SetRequest-PDU,
trap

Trap-PDU,

}

 ,    PDU    . -
,   GetRequest-PDU   :

GetRequest-PDU ::=
IMPLICIT SEQUENCE {
request-id

RequestID,
error-status
ErrorStatus,