A. Doria(1), M.L. Ferrer(2), E. Pace(2), E. Pasqualucci(3),
W. Grandegger(2)
(1) : I.N.F.N - Sez. di Napoli
(2) : I.N.F.N - Laboratori Nazionali di Frascati
(3) : I.N.F.N - Sez. di Roma "Tor Vergata"
presented by : E. Pasqualucci
AbstractThe Simple Network Management Protocol (SNMP), proposed as a standard by the Internet Engineering Task Force (IETF), is largely used for the management of network devices, to obtain and/or set informations about network configuration, performances, faults, accounting and security. Managed objects are defined in a Management Information Base (MIB) by working groups within IETF, but extensions or proprietary MIBs are developed by vendors of hardware or software when their new products require them.
SNMP is implemented using a reliable UDP protocol with retransmissions, through a well defined UDP port. Every managed device activates at boot time a daemon that is able to understand SNMP requests, and to obtain or execute by dedicated agents, the information or action required.
A GIGAswitch from Digital is used in the KLOE experiment to concentrate data from different chains of VME crates, into a given processor in an Event Builder Farm. The Data Flow network map creation and test is implemented using SNMP applications. Private KLOE MIBs are defined to manage active processors in the DAQ system, and to implement Run Control messages distribution.
The general philosophy and some results, including response times and needed resources, will be described.
Submitter`s name: M.L. Ferrer Submitter`s Institution : I.N.F.N. - Laboratori Nazionali di Frascati Address of the Institution: Via Enrico Fermi 40, Frascati, Italy Submitter`s email address: ferrer@lnf.infn.it Submitter's Phone: ++39-6-9403 415 Fax : ++39-6-9403 427