ABSTRACT
Plurix is a native PC Operating System written in Java. The nodes 
of a cluster communicate using the well-known concept of a 
Distributed Shared Memory (DSM). Memory consistency is 
guaranteed by restartable transactions. Using standard 
Internet network protocols allows a smooth integration 
of Plurix nodes into existing network environments. In 
this paper we present the design and implementation of 
the Plurix network protocols for the memory and 
transaction management both relying on IP. We 
discuss strategies to support long living TCP 
connections in our transactional environment 
where transactions have to be short to 
minimize collision probability. 
Finally we present preliminary 
performance evaluation results 
of an early prototype which 
was shown at the CeBIT 2000 
fair. 

KEYWORDS:
Distributed Shared Memory, Java, Operating Systems, Transactions, Plurix, Protocol.