LHC-OPN Meeting Janet (London), 8-9 March 2010

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Presentation transcript:

NetMonitoring@IT-INFN-CNAF LHC-OPN Meeting Janet (London), 8-9 March 2010 Donato De Girolamo, Stefano Zani 08/03/2010 Stefano Zani INFN CNAF (TIER1 Staff)

NetMonitoring@INFN CNAF The network monitoring system at CNAF consists essentially of three elements Traffic volume accounting on all the switches and routers of the center using MRTG Status availability and alert system performed by Nagios and an SMS gateway Flow analysis using a Netflow and S-Flow analyzer. 08/03/2010 Stefano Zani INFN CNAF (TIER1 Staff)

Stefano Zani INFN CNAF (TIER1 Staff) MRTG monitoring Every port on every switch is monitored by MRTG A graphical interface has been designed to give presentation “at a glance” of the load level for all the uplinks. On every switch a semi transparent Bar represents the load average of the uplink trunks Clicking on a switch The complete MRTG output is displayed 08/03/2010 Stefano Zani INFN CNAF (TIER1 Staff)

Status availability and alarm ticketing A Nagios server collects all the information regarding: status of all the uplink ports, CPU load, operative temperatures of every switch and generates automatic E-mail alerts and for the main problems sending SMS alerts to the network staff. 08/03/2010 Stefano Zani INFN CNAF (TIER1 Staff)

Stefano Zani INFN CNAF (TIER1 Staff) Flow Analysis WAN Folw analysis is done by enabling Netflow and S-Flow on the core Switches and router. 7600 GARR 2x10Gb/s 10Gb/s Exterme BD10808 4x10Gb/s BD8810 GARR Using a software tool like (Netflow Analyzer 7 Pro) is possible to classify the traffic between the WAN and the internal resources discriminating for example on the base of the Tiers NetFlow Analyzer 08/03/2010 Stefano Zani INFN CNAF (TIER1 Staff)