Application Framework for Programmable Network Control - Advances in Network-Embedded Management and Applications - page 40

investigate design patterns of application
shortly introduce the model
In UPVN ( Figure 1 ),
used directly or through the Intern
programs. A NE component (NC) can be seen as a manifestation of the NE in
the application, i.e. a virtualized NE. Consequently, all virtualized NEs
together create a virtualized network, all
To accommodate application specific packet processing, to set particular
parameters of the NE, and to facilitate other functions NEs play in a UPVN,
NEs have the ability to deploy Application Components (ACs).
UPVN's development is applica
that are crucial for applications
NE uses technologies, such as Grid
the Internet. Through the interfaces a NE exposes, vari
interact simultaneously with the NE. As such, each application is capable
optimize the behavior

development, the NE appears as a software
(NC), in the development environment. During run
technology allows dynamic extension of the set of NEs the applications
interacts with.
The UPVN model leads to a practical framework in which network control
is implemented as part of appl
services and optimizations are expressed in user
past, we developed a prototype
feasible [33]. In Section 4 and 5, we present the design and implementation of
a prototype that includes the
section, the application framework for programmable network control
introduced.

Fig. 1. Interworking model

3 Application Framework

Programmable network
service composition for
network embedded trans coding of video streams
network, however, applications