phpman > man > snmpbulkwalk(1)

SNMPBULKWALK(1)                               Net-SNMP                               SNMPBULKWALK(1)



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

SYNOPSIS
       snmpbulkwalk [APPLICATION OPTIONS] [COMMON OPTIONS] AGENT [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  por‐
       tion  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 re‐
       turned 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 snmpbulkwalk  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  re‐
               quests  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  sup‐
               plied 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  snm‐
       pcmd(1)  manual  page.   Note  that  snmpbulkget REQUIRES an argument specifying the agent to
       query and at most one OID argument, as described above.

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).



V5.9.1                                       01 May 2002                             SNMPBULKWALK(1)