man > SNMPDELTA(1)

SNMPDELTA(1)                                  Net-SNMP                                  SNMPDELTA(1)

NAME
       snmpdelta - Monitor delta differences in SNMP Counter values

SYNOPSIS
       snmpdelta [ COMMON OPTIONS ] [-Cf] [ -Ct ] [ -Cs ] [ -CS ] [ -Cm ] [ -CF configfile ] [ -Cl ]
       [ -Cp period ] [ -CP Peaks ] [ -Ck ] [ -CT ] AGENT OID [ OID ... ]

DESCRIPTION
       snmpdelta will monitor the specified integer valued OIDs, and report changes over time.

       AGENT identifies a target SNMP agent, which is instrumented to monitor the given objects.  At
       its simplest, the AGENT specification will consist of a hostname or an IPv4 address.  In this
       situation,  the command will attempt communication with the agent, using UDP/IPv4 to port 161
       of the given target host. See snmpcmd(1) for a full list of the possible formats for AGENT.

       OID is an object identifier which uniquely identifies the object type within a MIB.  Multiple
       OIDs can be specified on a single snmpdelta command.

OPTIONS
       COMMON OPTIONS
               Please  see  snmpcmd(1)  for  a list of possible values for COMMON OPTIONS as well as
               their descriptions.

       -Cf     Don't fix errors and 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     Flag will determine time interval from the monitored entity.

       -Cs     Flag will display 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     Prints the max value ever attained.

       -CF configfile
               Tells snmpdelta to read it's configuration from the specified file.  This options al‐
               lows the input to be set up in advance rather than having to be specified on the com‐
               mand line.

       -Cl     Tells  snmpdelta  to  write it's configuration to files whose names correspond to the
               MIB instances monitored.  For example, snmpdelta -Cl localhost ifInOctets.1 will cre‐
               ate a file "localhost-ifInOctets.1".

       -Cp     Specifies the number of seconds between polling periods.  Polling constitutes 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 spec‐
               ified, snmpdelta polls the agent peaks number of times before reporting the  results.
               The  result  reported  includes the average value over the reporting period. In addi‐
               tion, the highest polled value within the reporting period is shown.

       -Ck     When the polling period (-Cp) is an increment of 60 seconds and the timestamp is dis‐
               played in the output (-Cs), then the default display shows the timestamp in the  for‐
               mat hh:mm mm/dd. This option causes the timestamp format to be hh:mm:ss mm/dd.

       -CT     Makes snmpdelta print its 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
               packet is too big.

       Note that snmpdelta REQUIRES  an argument specifying the agent to query and at least one  OID
       argument, as described in the snmpcmd(1) manual page.

EXAMPLES
       $ 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
       $ 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

       The  following example uses a number of options. Since 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

SEE ALSO
       snmpcmd(1), variables(5).

V5.9.4.pre2                                  25 Jul 2003                                SNMPDELTA(1)