SNMPBULKWALK(1)                                             Net-SNMP                                             SNMPBULKWALK(1)



NAME
       snmpbulkwalk - retrieve a subtree of management values using SNMP GETBULK requests

SYNOPSIS
       snmpbulkwalk [APPLICATION OPTIONS] [COMMON OPTIONS] [OID]

DESCRIPTION
       snmpbulkwalk  is  an SNMP application that uses SNMP GETBULK requests to query a network entity efficiently for a tree of
       information.

       An object identifier (OID) may be given on the command line.  This OID specifies which portion of the  object  identifier
       space  will  be  searched using GETBULK requests.  All variables in the subtree below the given OID are queried and their
       values presented to the user.  Each variable name is given in the format specified in variables(5).  If no  OID  argument
       is present, snmpbulkwalk will search MIB-2.

       If  the network entity has an error processing the request packet, an error packet will be returned and a message will be
       shown, helping to pinpoint why the request was malformed.

       If the tree search causes attempts to search beyond the end of the MIB, the message "End of MIB" will be displayed.

OPTIONS
       -Cc     Do not check whether the returned OIDs are increasing.  Some agents (LaserJets are an example) return OIDs out of
               order,  but can complete the walk anyway.  Other agents return OIDs that are out of order and can cause snmpbulk-
               walk to loop indefinitely.  By default, snmpbulkwalk tries to detect this behavior and warns you when it hits  an
               agent acting illegally.  Use -Cc to turn off this behaviour.

       -Ci     Include the given OID in the search range.  Normally snmpbulkwalk uses GETBULK requests starting with the OID you
               specified and returns all results in the MIB tree after that OID.  Sometimes, you may wish  to  include  the  OID
               specified  on  the command line in the printed results if it is a valid OID in the tree itself.  This option lets
               you do this.

       -Cn<NUM>
               Set the non-repeaters field in the GETBULK PDUs.  This specifies the number of supplied variables that should not
               be iterated over.  The default is 0.

       -Cp     Upon completion of the walk, print the number of variables found.

       -Cr<NUM>
               Set  the  max-repetitions  field  in  the GETBULK PDUs.  This specifies the maximum number of iterations over the
               repeating variables.  The default is 10.

       In addition to these options, snmpbulkwalk takes the common options described in the snmpcmd(1) manual page.

EXAMPLE
       The command:

       snmpbulkwalk -v2c -Os -c public zeus system

       will retrieve all of the variables under system:

       sysDescr.0 = STRING: "SunOS zeus.net.cmu.edu 4.1.3_U1 1 sun4m"
       sysObjectID.0 = OID: enterprises.hp.nm.hpsystem.10.1.1
       sysUpTime.0 = Timeticks: (155274552) 17 days, 23:19:05
       sysContact.0 = STRING: ""
       sysName.0 = STRING: "zeus.net.cmu.edu"
       sysLocation.0 = STRING: ""
       sysServices.0 = INTEGER: 72

       In contrast to snmpwalk, this information will typically be gathered in a single transaction with the agent, rather  than
       one  transaction  per  variable found.  snmpbulkwalk is thus more efficient in terms of network utilisation, which may be
       especially important when retrieving large tables.

NOTE
       As the name implies, snmpbulkwalk utilizes the SNMP GETBULK message, which is not available in SNMP v1.

SEE ALSO
       snmpcmd(1), variables(5).



4th Berkeley Distribution                                  17 Jun 1998                                           SNMPBULKWALK(1)