ISO 21806-14:2021

INTERNATIONAL ISO
STANDARD 21806-14
First edition
2021-05
Road vehicles — Media Oriented
Systems Transport (MOST) —
Part 14:
Lean application layer
Véhicules routiers — Système de transport axé sur les médias —
Partie 14: Couche d'application allégée
Reference number
©
ISO 2021
© ISO 2021
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ii © ISO 2021 – All rights reserved

Contents Page
Foreword .v
Introduction .vi
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Symbols and abbreviated terms . 3
4.1 Symbols . 3
4.2 Abbreviated terms . 3
5 Conventions . 3
6 Basic principles . 3
7 Node kinds . 4
7.1 General . 4
7.2 Root node . 4
7.2.1 General. 4
7.2.2 Lean network services . 5
7.2.3 Network descriptor . 5
7.3 Remote node . 6
7.4 Listen-only node . 6
8 Node addressing . 6
9 Data transport . 7
10 Network configuration . 7
10.1 General . 7
10.2 Network . 7
10.3 Node . 8
10.4 Path . 8
10.5 Coupling . 8
10.6 Streaming socket . 9
10.7 Network socket . 9
11 Network supervisor/application interface (NSAI) .10
11.1 Overview .10
11.2 Requests, responses, and events .11
11.2.1 Network startup and shutdown .11
11.2.2 Connection management .11
11.2.3 Diagnosis .11
12 Lean network services interface (LNSI) .12
12.1 Overview .12
12.2 Requests, responses, and events .14
12.2.1 Lean network services .14
12.2.2 Network startup and shutdown .14
12.2.3 Node discovery .14
12.2.4 Connection management .15
12.2.5 Diagnosis .15
13 Network management .15
13.1 Network startup and shutdown .15
13.2 Network events .15
13.2.1 General.15
13.2.2 End of network activity .16
13.2.3 Unlock and critical unlock .16
13.2.4 Network change event .16
13.2.5 Source drop .16
13.3 Node discovery .16
13.3.1 General.16
13.3.2 Addresses .17
13.3.3 Scanning the network .17
13.3.4 Adding nodes to the network .18
13.3.5 Reset detection .21
13.4 Connection management .23
13.4.1 General.23
13.4.2 Sockets .24
13.4.3 Couplings .24
13.4.4 Paths .25
13.4.5 Activating paths .25
13.4.6 Deactivating paths .26
13.4.7 Re-creation of lost paths .27
13.4.8 Monitoring .27
13.5 Network management message format .27
13.5.1 General.27
13.5.2 Command and report reference .27
13.5.3 Message IDs for commands and reports .30
14 Diagnosis .31
14.1 General .
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