1 Scope
This document provides a communication model that contains the requirements for a
Vehicle Interface Protocol (VIP) to access a vehicle interface over a network transport
protocol for AMI-C networks. It does not apply to networks that have pre-existing
protocols and messages for transporting vehicle functions.
A VIP defines how an application communicates over a simple network transport mechanism.
These requirements can be applied to network technologies that use UDP/IP as the transport
method. However, pre-existing systems may have unique protocols and messages for transporting
messages about vehicle functions; therefore, this document does not cover such pre-existing
technology.
Messages transported are network-specific instantiations of the CMS.
This document addresses the following aspects related to the AMI-C’s approach to network
communication:
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— message frame format;
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— application transaction;
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— system transaction;
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— initialization process;
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— address resolution; and
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— functional module discovery and removal process.