snmpbulkwalk(1M) System Administration Commands snmpbulkwalk(1M)
NAME
snmpbulkwalk - communicate with a network entity using SNMP BULK requests
SYNOPSIS
/usr/sfw/bin/snmpbulkwalk [application_options] [common_options] [oid]
DESCRIPTION
The snmpbulkwalk utility is an SNMP application that uses SNMP GETBULK requests to query a network entity efficiently for a tree of infor-
mation.
You can specify an object identifier (OID) on the command line. This OID identifies the portion of the object identifier space that will be
searched using GETBULK requests. All variables in the subtree below the given OID are queried and their values returned. Each variable name
is given in the format specified in snmp_variables(4). If no OID argument is present, snmpbulkwalk searches MIB-2.
If a network entity has an error processing the request packet, an error packet is returned and a message is displayed. The message helps
to pinpoint the way in which the request was malformed.
If the tree search causes attempts to search beyond the end of the MIB, the message "End of MIB" is displayed.
OPTIONS
The following options are supported:
-Cc
Do not check whether the returned OIDs are increasing. Some agents (agents for Laser-Jet printers 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 behavior.
-Ci
Include the given OID in the search range. Normally, snmpbulkwalk uses GETBULK requests starting with the OID you specify and returns
all results in the MIB tree beyond that OID. Use this option to include the OID specified on the command line in the printed results if
it is a valid OID in the tree itself.
-Cnnum
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, display the number of variables found.
-Crnum
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(1M) manual page.
EXAMPLES
Example 1: Retrieving Variables Under system
The following command retrieves all of the variables under system:
# snmpbulkwalk -v2c -Os -c public zeus system
The return from snmpbulkwalk is as follows:
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(1M), this information will 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 utilization, which might be especially important when retrieving
large tables.
EXIT STATUS
0
Successful completion.
1
A usage syntax error. A usage message displays. Also used for timeout errors.
2
An error occurred while executing the command. An error message displays.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWsmcmd |
+-----------------------------+-----------------------------+
|Interface Stability |External |
+-----------------------------+-----------------------------+
SEE ALSO
snmpcmd(1M), snmpwalk(1M), snmp_variables(4), attributes(5)
NOTES
As the name implies, snmpbulkwalk uses the SNMP GETBULK message, which is not available in SNMP v1.
SunOS 5.10 20 Jan 2004 snmpbulkwalk(1M)