snmpdelta(1M) System Administration Commands snmpdelta(1M)NAMEsnmpdelta - monitor deltas of integer valued SNMP variables
SYNOPSIS
/usr/sfw/bin/snmpdelta [common options] [-Cf] [-Ct] [-Cs] [-CS] [-Cm]
[-CF configfile] [-Cl] [-Cp period] [-CP peaks] [-Ck] [-CT]
[-Cv vars/pkt] agent OID [OID...]
DESCRIPTION
The snmpdelta command monitors the specified integer-valued OIDs and
reports changes over time.
The operand agent identifies a target SNMP agent, which is instrumented
to monitor a given set of objects. At its simplest, the agent specifi‐
cation will consist of a hostname or an IPv4 address. With such an op‐
erand, the command attempts communication with the agent, using
UDP/IPv4 to port 161 of the given target host. See snmpcmd(1M) for a
full list of the possible formats for agent.
The operand OID is an object identifier that uniquely identifies the
object type within a MIB. Multiple OIDs can be specified in a single
snmpdelta command.
OPTIONS
See snmpcmd(1M) for a list of common options. In addition to the common
options, snmpdelta supports the options described below.
-Cf
Do not fix errors and then retry the request. Without this option,
if multiple OIDs have been specified for a single request and if
the request for one or more of the OIDs fails, snmpdelta will retry
the request so that data for OIDs apart from the ones that failed
will still be returned. Specifying -Cf tells snmpdelta not to retry
a request, even if there are multiple OIDs specified.
-Ct
Determines time interval from the monitored entity.
-Cs
Displays a timestamp.
-CS
Generates a "sum count" in addition to the individual instance
counts. The "sum count" is the total of all the individual deltas
for each time period.
-Cm
Displays the maximum value ever attained.
-CF configfile
Tells snmpdelta to read its configuration from the specified file.
This option allows the input to be set up in advance rather than
having to be specified on the command line.
-Cl
Tells snmpdelta to write its configuration to files whose names
correspond to the MIB instances monitored. For example:
% snmpdelta-c public -v 1 -Cl localhost ifInOctets.1
...will create a file localhost-ifInOctets.1.
-Cp
Specifies the number of seconds between polling periods. Polling
involves sending a request to the agent. The default polling period
is one second.
-CP peaks
Specifies the reporting period in number of polling periods. If
this option is specified, snmpdelta polls the agent peaks number of
times before reporting the results. The result reported includes
the average value over the reporting period. In addition, the high‐
est polled value within the reporting period is shown.
-Ck
When the polling period (-Cp) is an increment of 60 seconds and the
timestamp is displayed in the output (-Cs), then the default dis‐
play shows the timestamp in the format hh:mm mm/dd. This option
causes the timestamp format to be hh:mm:ss mm/dd (adding seconds).
-CT
Display output in tabular form.
-Cv vars/pkt
Specifies the maximum number of OIDs allowed to be packaged in a
single PDU. Multiple PDUs can be created in a single request. The
default value of variables per packet is 60. This option is useful
if a request response results in an error because the request
packet is too big.
EXAMPLES
Example 1: Obtaining Timestamped Output
The following command uses the -Cs option to timestamp output. This
example assumes that there are at least three entries in your ifTable.
% snmpdelta-c public -v 1 -Cs localhost \
IF-MIB::ifInUcastPkts.3 IF-MIB::ifOutUcastPkts.3
[20:15:43 6/14] ifInUcastPkts.3 /1 sec: 158
[20:15:43 6/14] ifOutUcastPkts.3 /1 sec: 158
[20:15:44 6/14] ifInUcastPkts.3 /1 sec: 184
[20:15:44 6/14] ifOutUcastPkts.3 /1 sec: 184
[20:15:45 6/14] ifInUcastPkts.3 /1 sec: 184
[20:15:45 6/14] ifOutUcastPkts.3 /1 sec: 184
[20:15:46 6/14] ifInUcastPkts.3 /1 sec: 158
[20:15:46 6/14] ifOutUcastPkts.3 /1 sec: 158
[20:15:47 6/14] ifInUcastPkts.3 /1 sec: 184
[20:15:47 6/14] ifOutUcastPkts.3 /1 sec: 184
[20:15:48 6/14] ifInUcastPkts.3 /1 sec: 184
[20:15:48 6/14] ifOutUcastPkts.3 /1 sec: 184
[20:15:49 6/14] ifInUcastPkts.3 /1 sec: 158
[20:15:49 6/14] ifOutUcastPkts.3 /1 sec: 158
^C
Example 2: Displaying Output in Tabular Form
The following command uses the -CT option to format output as a table.
This example assumes that there are at least three entries in your
ifTable.
% snmpdelta-c public -v 1 -Cs -CT localhost \
IF-MIB:ifInUcastPkts.3 IF-MIB:ifOutcastPkts.3 \
localhost ifInUcastPkts.3 ifOutUcastPkts.3
[20:15:59 6/14] 184.00 184.00
[20:16:00 6/14] 158.00 158.00
[20:16:01 6/14] 184.00 184.00
[20:16:02 6/14] 184.00 184.00
[20:16:03 6/14] 158.00 158.00
[20:16:04 6/14] 184.00 184.00
[20:16:05 6/14] 184.00 184.00
[20:16:06 6/14] 158.00 158.00
^C
Example 3: Sending Output to a File
The following example uses a number of options. This example assumes
that there are at least four entries in your ifTable. Because the -Cl
option is specified, the output is sent to a file and not to the
screen.
% snmpdelta-c public -v 1 -Ct -Cs -CS -Cm -Cl -Cp 60 -CP 60 \
interlink.sw.net.cmu.edu .1.3.6.1.2.1.2.2.1.16.3 \
.1.3.6.1.2.1.2.2.1.16.4
EXIT STATUS
0 Successful completion.
1 A usage syntax error. A usage message is displayed. Also used
for timeout errors and for cases where an SNMP client session
could not be opened.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
┌─────────────────────────────┬─────────────────────────────┐
│ ATTRIBUTE TYPE │ ATTRIBUTE VALUE │
├─────────────────────────────┼─────────────────────────────┤
│Availability │SUNWsmcmd │
├─────────────────────────────┼─────────────────────────────┤
│Interface Stability │External │
└─────────────────────────────┴─────────────────────────────┘
SEE ALSOsnmpcmd(1M), snmp_variables(4), attributes(5)SunOS 5.10 22 Jan 2004 snmpdelta(1M)
