[Cflowd] How do I tell if cflowd/cflowdmux are collecting data?

From: Systems Administrator (sysadmin@sunet.com.au)
Date: Wed Oct 30 2002 - 20:46:06 PST

  • Next message: Systems Administrator: "Re: [Cflowd] How do I tell if cflowd/cflowdmux are collecting data?"

        Hi all. I'm setting up a cflowd setup here, and I've used tcpdump to determine that the cflowd machine is indeed receiving NetFlow packets on the port that cflowdmux is listening on. However, I don't seem to be getting any information out of cflowd. Here's some output to show what I'm getting:

    $ flowdump /usr/local/arts/data/cflowd/flows/210.80.157.1.flows.0 -c
    matched 0 of 0 flows

    $ cfdifmatrix -c /usr/local/etc/cflowd.conf 210.80.157.1
    period: 10/31/2002 14:22:23 - 01/01/1970 10:00:00 EST (-17267242 min, -23 sec)

        What I'm interested is is:
    1. Are there any tools I can use to see if cflowdmux is passing the data to cflowd?
    2. Does anyone know a particular reason why I'm getting a period ending at that particular time?

        My OPTIONS stanza is set to the defaults. Here are the other stanzas I'm using:
    --------------------------------------------------------------------------------
    COLLECTOR {
      HOST: 203.166.102.50 # IP address of central collector
      ADDRESSES: { }
      AUTH: none
    }

    CISCOEXPORTER {
      HOST: 210.80.157.1 # IP address of Cisco sending data.
      ADDRESSES: { 210.80.157.1 } # Addresses of interfaces on Cisco sending data.
      CFDATAPORT: 2055 # Port on which to listen for data.
      SNMPCOMM: 'public' # SNMP community name.
      LOCALAS: 1324 # Local AS of Cisco sending data.
      COLLECT: { protocol, portmatrix, ifmatrix, nexthop, netmatrix,
                      asmatrix, tos, flows }
    }
    --------------------------------------------------------------------------------

        Any help would be much appreciated.

        Thanks all,

    Tim Nelson
    Systems Administrator
    Sunet Internet
    Tel: +61 3 5241 1155
    Fax: +61 3 5241 6187
    Web: http://www.sunet.com.au/
    Email: sysadmin@sunet.com.au

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