Network Core Engine
The Net module defines a low-level network framework for embedded devices. This module allows you to manage connection (TCP)- or connectionless (UDP)-oriented protocols for client/server networking applications.
The Net library includes two sub-protocols:
- UDP: a connectionless-oriented protocol that allows communication with the server or client side in a non-reliable way. No handshake mechanisms, no guarantee on delivery, and no order in packet sending.
- TCP: a connection-oriented protocol that allows communication with the server or client side in a reliable way. Handshakes mechanism used, bytes ordered, and error checking performed upon delivery.
LLNET_NETWORKINTERFACE_impl.h(see LLNET: Network).
Network is an additional module. In the platform configuration file,
check NET to install this module. When checked, the properties file
net.properties is required during platform creation to
configure the module. This configuration step is used to customize the
kind of TCP/IP native stack used and the Domain Name System (DNS)
The properties file must / can contain the following properties:
stack[optional, default value is “custom”]: Defines the kind of TCP/IP interface used in the C project.
custom: Select this configuration to make a “from scratch” implementation glue between the C Network Core Engine and the C project TCP/IP interface.
bsd: Select this configuration to use a BSD-like library helper to implement the glue between the C Network Core Engine and the C project TCP/IP interface. This property requires that the C project provides a TCP/IP native stack with a Berkeley Sockets API and a
dns[optional, default value is “native”]: Defines the kind of Domain Name System implementation used.
native: Select this configuration to implement the glue between the C Network Core Engine DNS part and the C project TCP/IP interface.
soft: Select this configuration if you want a software implementation of the DNS part. Only the IPs list of the DNS server must be provided by the C Network Core Engine glue.
A classpath variable named
NET-1.1 is available.
This library provides a set of options. Refer to the chapter Application Options which lists all available options.