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Does DFM use only SNMP for polling?

April 26, 2017dfm polling SNMP

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Does DFM use only SNMP for polling?

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No. DFM collects fault and performance information using SNMP, but device connectivity is monitored using ICMP (ping). If a device does not respond to an ICMP poll, it is placed on a “do not poll” list and is not polled by SNMP. In addition, the polling interval for ICMP is always set to be 60 seconds less than the pollling interval for SNMP, to ensure that SNMP has the most current and correct data. (You can disable ICMP polling without disabling SNMP polling if you have downloaded and installed the latest patch/IDU from the DFM download site: http://www.cisco.com/pcgi-bin/tablebuild.pl/cw2000-dfm.