ISO 20794:2020
ISO 20794:2020 Road vehicles – Clock extension peripheral interface (CXPI) – Part 3: Transport and network layer
CDN $263.00
Description
This document specifies the OSI transport layer and network layer by means of services and protocols. They can be used by different applications.
The transport layer:
– transforms a message into a single packet;
– adds protocol control information for diagnostic and node configuration into each packet;
– adds packet identifier for diagnostic and node configuration into each packet; and
– performs transport protocol error detection.
The transport layer protocol is not used for normal communication except to map the service interface parameters between lower and upper OSI layers.
The network layer:
– adds a node address for diagnostic and node configuration into each segment; and
– observes timing for diagnostic and node configuration of each segment.
The network layer is not used for normal communication except to map the service interface parameters between lower and upper OSI layers.
Edition
1
Published Date
2020-02-05
Status
PUBLISHED
Pages
23
Language
English
Format
Secure PDF
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Abstract
This document specifies the OSI transport layer and network layer by means of services and protocols. They can be used by different applications.
The transport layer:
- transforms a message into a single packet;
- adds protocol control information for diagnostic and node configuration into each packet;
- adds packet identifier for diagnostic and node configuration into each packet; and
- performs transport protocol error detection.
The transport layer protocol is not used for normal communication except to map the service interface parameters between lower and upper OSI layers.
The network layer:
- adds a node address for diagnostic and node configuration into each segment; and
- observes timing for diagnostic and node configuration of each segment.
The network layer is not used for normal communication except to map the service interface parameters between lower and upper OSI layers.
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