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 follows:

       -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

       -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

       -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

       -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 s4/2.1.

              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 interface-spec.

              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

       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 pcp.conf(5).

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
       2020-08-13.  (At that time, the date of the most recent commit that
       was found in the repository was 2020-08-11.)  If you discover any
       rendering problems in this HTML version of the page, or you believe
       there is a better or more up-to-date source for the page, or you have
       corrections or improvements to the information in this COLOPHON
       (which is not part of the original manual page), send a mail to

Performance Co-Pilot                 PCP                        PMDACISCO(1)