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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 effi-ciently efficiently
       ciently 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 exam-ple) example)
               ple) return OIDs out of order, but can complete the walk anyway.  Other  agents  return  OIDs
               that are out of order and can cause snmpbulkwalk to loop indefinitely.  By default, snmpbulk-walk snmpbulkwalk
               walk 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 vari-ables variables
               ables 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)  man-ual manual
       ual 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).



V5.6                                             01 May 2002                                 SNMPBULKWALK(1)