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Specification of Ethernet Switch Driver

AUTOSAR CP R21-11

Document Title

Specification of Ethernet Switch

Dr iver

Document Owner AUTOSAR

Document Responsibility AUTOSAR

Document Identification No 656

Document Status published

Part of AUTOSAR Standard Classic Platform

Part of Standard Release R21-11

Document Change History

Date Release Changed by

Description

2021-11-25 R21-11

AUTOSAR

Release

Management

• Added 10BASE-T1S support

• Clarified return values and

development errors

• Removed

EthSwtMgmtInfoIndicationTimeout

related requirements

2020-11-30 R20-11

AUTOSAR

Release

Management

• Support for Ethernet wake on data

line

• Modified description of return values

in EthSwt_StoreConfiguration,

EthSwt_ResetConfiguration

• Updated the types for

ReTaggingVlanId and

DoubleTaggingVlanId

• Fix service IDs for Eth-

Swt_DeletePortMirrorConfiguration,

EthSwt_PortLinkStateRequest,

EthSwt_GetMaxFIFOBufferFillLevel

• Editorial changes

1 of 151 Document ID 656: AUTOSAR_SWS_EthernetSwitchDriver

Specification of Ethernet Switch Driver

AUTOSAR CP R21-11

Table of Contents

1 Introduction and functional overview 9

2 Acronyms and abbreviations 10

3 Related documentation 10

3.1 Input documents & related standards and norms . . . . . . . . . . . . 10

3.2 Related specification . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

4 Constraints and assumptions 11

4.1 Limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

4.2 Applicability to car domains . . . . . . . . . . . . . . . . . . . . . . . . 11

5 Dependencies to other modules 12

6 Requirements Tracing 12

7 Functional specification 18

7.1 Ethernet BSW stack . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

7.1.1 Indexing scheme . . . . . . . . . . . . . . . . . . . . . . . . . 19

7.1.2 Ethernet Switch Port Mirroring . . . . . . . . . . . . . . . . . 20

7.1.3 State Handling . . . . . . . . . . . . . . . . . . . . . . . . . . 21

7.1.4 Handling of cable diagnostic . . . . . . . . . . . . . . . . . . 21

7.1.5 Functional Description . . . . . . . . . . . . . . . . . . . . . . 22

7.1.5.1 Learning Phase at Start-up . . . . . . . . . . . . . . 22

7.1.5.2 Configuration of Egress Port Structure . . . . . . . . 25

7.1.5.3 Vlan-Membership on Switch-ports . . . . . . . . . . 27

7.1.5.4 Rate Policing on Ingress Side . . . . . . . . . . . . . 28

7.1.5.5 VLAN-modification at ingress side . . . . . . . . . . 28

7.1.5.6 Priority-Code-Point-Regeneration . . . . . . . . . . . 29

7.1.5.7 Direct Traffic Class Assignement . . . . . . . . . . . 29

7.1.5.8 Behavior in case of untagged frames in a VLAN net-

work . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

7.1.5.9 Behavior in case of double tagged frames in a VLAN

network . . . . . . . . . . . . . . . . . . . . . . . . . 30

7.1.5.10 Switch Management support . . . . . . . . . . . . . 30

7.1.5.11 Global Time support . . . . . . . . . . . . . . . . . . 31

7.1.5.12 Counter synchronization of Ethernet switches which

are connected via uplink ports . . . . . . . . . . . . . 32

7.1.5.13 Verification of Configuration . . . . . . . . . . . . . . 32

7.1.5.14 Testing and Diagnostic of Switch Ports . . . . . . . . 33

7.1.5.15 Low Power Mode Support . . . . . . . . . . . . . . . 34

7.2 Error Classifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

7.2.1 Development Errors . . . . . . . . . . . . . . . . . . . . . . . 34

7.2.2 Runtime Errors . . . . . . . . . . . . . . . . . . . . . . . . . . 36

7.2.3 Transient Faults . . . . . . . . . . . . . . . . . . . . . . . . . 37

5 of 151 Document ID 656: AUTOSAR_SWS_EthernetSwitchDriver

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