Network Control Overview

Purpose

This collection groups the plugins that implement a Network Layer protocol's Control plane. The Control plane is the second of the three planes of the Comms Architecture.

Architecture

This collection provides some of the Stack Node plugins to the Comms Architecture. The Stack Nodes in this collection both:

• Implement a technology from the Network layer of the TCP/IP layered model (RFC 1122)

• Implement a Stack Node for the Control Plane of the Comms Architecture

Component Description

The collection can be divided into three groups of components:

1. Quality of Service (QoS) components:

   • QoS Fmwrk Config - QoS framework configuration files. The configuration files are qos.ini and qospolicies.ini .

   • QoS Library - QoS API library.

   • PF QOS Library - message interface to manage the QoS policy database.

   • QoS Frmwrk PRT - QoS Protocol module plugin to the Socket Server.

   • QoS IP SCPR - Stack Node that manages QoS for a subconnection.

2. Internet Protocol (IP) components:

   • IP Network Layer - Stack Nodes representing the transport (UDP+TCP) layer. This component connects the TCP/IP protocol module to the Comms Architecture because the TCP/IP protocol module has an old interface that cannot connect directly to the Comms Architecture.

   • IP Transport Layer - Stack Nodes representing the network (IP) layer. This component connects the TCP/IP protocol module to the Comms Architecture because the TCP/IP protocol module has an old interface that cannot connect directly to the Comms Architecture.

3. The User Prompt Manager. This component manages interaction with the user when an application that does not have the NetworkServices capability requests access to a network.