pmdacisco(1) — Linux manual page


PMDACISCO(1)             General Commands Manual            PMDACISCO(1)

NAME         top

       pmdacisco - Cisco router performance metrics domain agent (PMDA)

SYNOPSIS         top

       $PCP_PMDAS_DIR/cisco/pmdacisco [-d domain] [-l logfile] [-U
       username] [-P password] [-r refresh] [-s prompt] [-M username]
       [-x port] host:interface-spec [...]
       $PCP_PMDAS_DIR/cisco/parse [options] host:interface-spec [...]
       $PCP_PMDAS_DIR/cisco/probe [-P password] [-s prompt] [-U
       username] [-x port] host

DESCRIPTION         top

       pmdacisco is a Performance Metrics Domain Agent (PMDA) which
       extracts performance metrics from one or more Cisco routers.

       A brief description of the pmdacisco command line options

       -d   It is absolutely crucial that the performance metrics domain
            number specified here is unique and consistent.  That is,
            domain should be different for every PMDA on the one host,
            and the same domain number should be used for the same PMDA
            on all hosts.

       -l   Location of the log file.  By default, a log file named
            cisco.log is written in the current directory of pmcd(1)
            when pmdacisco is started, i.e.  $PCP_LOG_DIR/pmcd.  If the
            log file cannot be created or is not writable, output is
            written to the standard error instead.

       -P   By default, it is assumed that no user-level password is
            required to access the Cisco's telnet port.  If user-level
            passwords have been enabled on the Ciscos, then those
            passwords must be specified to pmdacisco.  If specified with
            the -P option, password will be used as the default user-
            level password for all Ciscos.  See also the INTERFACE
            IDENTIFICATION section below.

       -r   pmdacisco will refresh the current values for all
            performance metrics by contacting each Cisco router once
            every refresh seconds.  The default refresh is 120 seconds.

       -s   The Cisco command prompt ends with the string prompt.  The
            default value is ``>''.  The only way pmdacisco can
            synchronize the sending of commands and the parsing of
            output is by recognizing prompt as a unique string that
            comes at the end of all output, i.e. as the command prompt
            when waiting for the next command.

       -U   By default, it is assumed that no username login is required
            to access the Cisco's telnet port.  If username login has
            been enabled on the Ciscos, then the corresponding usernames
            must be specified to pmdacisco.  If specified with the -U
            option, username will be used as the default username login
            for all Ciscos.  See also the INTERFACE IDENTIFICATION
            section below.

       -M   User account under which to run the agent.  The default is
            the unprivileged "pcp" account in current versions of PCP,
            but in older versions the superuser account ("root") was
            used by default.

       -x   Connect to the Cisco via TCP port number port rather than
            the default 23 for a telnet connection.

       For each interface, once the telnet connection is established,
       pmdacisco is willing to wait up to 5 seconds for the Cisco to
       provide a new snapshot of the requested information.  If this
       does not happen, the telnet connection is broken and no values
       are returned.  This prevents pmdacisco tying up the Cisco's
       telnet ports waiting indefinitely when the response from the
       router is not what is expected, e.g. if the format of the ``show
       int'' output changes, or the command is in error because an
       interface is no longer configured on the router.


       As each Cisco router can support multiple network interfaces
       and/or multiple communications protocols, it is necessary to tell
       pmdacisco which interfaces are to be monitored.

       The host:interface-spec arguments on the command line define a
       particular interface on a particular Cisco router.  host should
       be a hostname or a ``dot-notation'' IP address that identifies
       the telnet port of a particular Cisco router.  There are several
       components of the interface-spec as follows.

              One of the abbreviations a, B, E, e, f, G, h, s or Vl
              respectively for ATM, BRI (ISDN), FastEthernet, Ethernet,
              FDDI, GigabitEthernet, HSSI, serial or Vlan.

              Depending on the model of the Cisco, this will either be
              an integer, e.g. s0, or an integer followed by a slash
              (``/'') followed by a subinterface identification in one
              of a variety of syntactic forms, e.g. e1/0, G0/0/1 or

              To discover the valid interfaces on a particular Cisco,
              connect to the telnet port (using telnet(1)) and enter the
              command "show int" and look for the interface identifiers
              following the keywords ``Ethernet'', ``Fddi'', ``Serial'',

              Alternatively run the probe command.

              If there is a username login, and it is different to the
              default (see -U above), it may be optionally specified
              here by appending ``@'' and the username to the end of

              If there is a user-level password, and it is different to
              the default (see -P above), it may be optionally specified
              here by appending a question mark (``?'') and the password
              to the end of interface-spec.

       prompt If the Cisco command prompt is different to the default
              (see -s above), it may be optionally specified here by
              appending an exclamation mark (``!'') and the prompt to
              the end of interface-spec.

       The following are examples of valid interface-spec arguments.


       The probe command may be used to discover the names of all
       interfaces for a particular Cisco router identified by host.  The
       -P argument is the same as for pmdacisco.

       The parse command takes exactly the same arguments as pmdacisco,
       but executes outside the control of any pmcd(1) and so may be
       used to diagnose problems with handling a particular Cisco router
       and/or one of its interfaces.

       Additional diagnostic verbosity may be produced using the -D
       appl0,appl1,appl2 command line option.  appl0 logs connect and
       disconnect events, login progress, high-level flow of control and
       extracted statistics.  appl1 traces all commands sent to the
       Cisco device.  appl2 logs tokenizing and parsing of the output
       from the Cisco device.  Diagnostics are generated on standard
       error as each sample is fetched and parsed.

INSTALLATION         top

       If you want access to the names, help text and values for the
       Cisco performance metrics, do the following as root:

            # cd $PCP_PMDAS_DIR/cisco
            # ./Install

       If you want to undo the installation, do the following as root:

            # cd $PCP_PMDAS_DIR/cisco
            # ./Remove

       pmdacisco is launched by pmcd(1) and should never be executed
       directly.  The Install and Remove scripts notify pmcd(1) when the
       agent is installed or removed.

FILES         top

              command line options used to launch pmdacisco
              default help text file for the Cisco metrics
              installation script for the pmdacisco agent
              undo installation script for the pmdacisco agent
              default log file for error messages and other information
              from pmdacisco


       Environment variables with the prefix PCP_ are used to
       parameterize the file and directory names used by PCP.  On each
       installation, the file /etc/pcp.conf contains the local values
       for these variables.  The $PCP_CONF variable may be used to
       specify an alternative configuration file, as described in

SEE ALSO         top

       pmcd(1), pcp.conf(5) and pcp.env(5).

COLOPHON         top

       This page is part of the PCP (Performance Co-Pilot) project.
       Information about the project can be found at 
       ⟨⟩.  If you have a bug report for this manual
       page, send it to  This page was obtained from the
       project's upstream Git repository
       ⟨⟩ on 2023-12-22.
       (At that time, the date of the most recent commit that was found
       in the repository was 2023-12-16.)  If you discover any rendering
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       (which is not part of the original manual page), send a mail to

Performance Co-Pilot               PCP                      PMDACISCO(1)