SNMPBULKWALK(1) Net-SNMP SNMPBULKWALK(1)
snmpbulkwalk - retrieve a subtree of management values using SNMP GET
snmpbulkwalk [APPLICATION OPTIONS] [COMMON OPTIONS] [OID]
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 argu
ment 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.
-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 indefi
nitely. 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 snmpbulk
walk uses GETBULK requests starting with the OID you specified
and returns all results in the MIB tree after that OID. Some
times, 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.
Set the non-repeaters field in the GETBULK PDUs. This speci
fies the number of supplied variables that should not be iter
ated over. The default is 0.
-Cp Upon completion of the walk, print the number of variables
Set the max-repetitions field in the GETBULK PDUs. This speci
fies the maximum number of iterations over the repeating vari
ables. The default is 10.
In addition to these options, snmpbulkwalk takes the common options
described in the snmpcmd(1) manual page.
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 net
work utilisation, which may be especially important when retrieving
As the name implies, snmpbulkwalk utilizes the SNMP GETBULK message,
which is not available in SNMP v1.
4th Berkeley Distribution 17 Jun 1998 SNMPBULKWALK(1)