Design Requirements for Best Effort Backbone IP Network
Keywords:
Bandwidth, best effort (BE), converged IP, quality of service (QoS), peer-to-peer, traffic mix, WAN.Abstract
Process control systems for Hydrocarbon Process
Automation Applications (HPAA) are implemented in oil and
gas fields, plants, refineries, and tank farms in the form of a
Local Area Network (LAN) to support control functions. These
systems are composed of sensors, actuators, and logic solvers
networked together to form a control system platform.
Reliable networking plays a key role in supporting such a
system infrastructure. The existing network designs consist of
multiple, parallel networks with limited interconnectivity
supporting different functions. The concept of consolidating
HPPA networks on a converged Internet Protocol (IP) and
utilize Wide Area Network (WAN) for real time operation was
not explored in detail in the past. This paper explores this
concept by simulating a WAN network based on Best Effort
Quality of Service settings. Simulation and empirical
experimentation were conducted to assess the feasibility of such
a conceptual design and it showed positive outcomes. HPPA
can benefit from a converged IP WAN by minimizing network
components and wiring; and provide an integrated control
system platform at the end user's desktop.
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