Th`ese de Doctorat de l'université Paris VI Pierre et Marie Curie Mlle ...

A.2.1 Extensions to existing J-Sim classes
The basic package for network simulation in J-Sim is the drcl.inet package. This package
contains the basic classes defined in the abstract network model, as well as a set of utility
functions and classes that facilitate creation of simulation scenarios.
To implement our dynamic bandwidth allocation algorithms, we extended the J-Sim
package both defining a broad set of Java classes and modifying a large number of al-
ready existing ones. In this Chapter, we will simply describe the Connections’ State Table
implementation.
Note that the Java class Node.java (in the drcl.inet package) is extended to implement
our ingress routers by including a set of Java fields and methods. Among these fields, the
most important is the CST table and its implementation is described in the following.
A.2.2 Implementation of Connections’ State Table (CST)
The CST table allows to maintain the state information regarding all connections estab-
lished in the network.
We implemented the CST table in a vector named CSTtable, where each element corre-
sponds to one connection and maintains the state information regarding such connection.
Each element of the CST table is implemented in the Java class ConnectionState.java and
it contains the following fields:
• long SourceAddress: the connection source node;
• long DestinationAddress: the connection destination node;
• Node[] ConnectionPath: the connection path;
• double SLARate: the connection subscribed rate;
• double Weight: the connection weight;
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