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Commit 80c23601 authored by Lucia Morganti's avatar Lucia Morganti
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Update km3net.tex

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...@@ -211,7 +211,7 @@ resources at CNAF has been so far below the figures for a ...@@ -211,7 +211,7 @@ resources at CNAF has been so far below the figures for a
units are added in the following years. KM3NeT software that units are added in the following years. KM3NeT software that
runs on the GRID can use CNAF computing nodes in opportunistic mode. runs on the GRID can use CNAF computing nodes in opportunistic mode.
Already now, the data handling policy to safeguard the products of Tier-0 Already now, the data handling policy to safeguard the products of Tier 0
is in place. Automatic synchronization from each shore station to both is in place. Automatic synchronization from each shore station to both
CC-IN2P3 and CNAF runs daily and provides two maximally separated CC-IN2P3 and CNAF runs daily and provides two maximally separated
paths from the data production site to final storage places. Mirroring paths from the data production site to final storage places. Mirroring
...@@ -219,11 +219,11 @@ and redundancy preservation between CC-IN2P3 and CNAF are foreseen and ...@@ -219,11 +219,11 @@ and redundancy preservation between CC-IN2P3 and CNAF are foreseen and
currently at an early stage. currently at an early stage.
CNAF has already added relevant contributions to KM3NeT in terms of CNAF has already added relevant contributions to KM3NeT in terms of
know-how for IT solution deployment, e.g.~the above-mentioned synchronisation, software development solutions and the software-defined network at the Tier-0 at know-how for IT solution deployment, e.g.~the above-mentioned synchronisation, software development solutions and the software-defined network at the Tier 0 at
the Italian site. Setting up Software Defined Networks (SDN) for data the Italian site. Setting up Software Defined Networks (SDN) for data
acquisition deserves a special mention. The SDN technology\cite{SDN} is used to acquisition deserves a special mention. The SDN technology\cite{SDN} is used to
configure and operate the mission-critical fabric of switches/routers configure and operate the mission-critical fabric of switches/routers
that interconnects all the on-shore resources in Tier-0 stations. The that interconnects all the on-shore resources in Tier 0 stations. The
KM3NeT DAQ is built around switches compliant with the OpenFlow 1.3 KM3NeT DAQ is built around switches compliant with the OpenFlow 1.3
protocol and managed by dedicated controller servers. With a limited protocol and managed by dedicated controller servers. With a limited
number of Layer-2 forwarding rules, developed on purpose for the KM3NeT number of Layer-2 forwarding rules, developed on purpose for the KM3NeT
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