--- name: pangzhenying2025/automotive-network source: https://app.decimal.ai/s/pangzhenying2025-automotive-network@1/SKILL.md source_sha256: 097e640afdc3 --- # Automotive Network 194 skill files covering network domain for automotive software engineering. ## Applicable Standards - ASPICE Level 3 - AUTOSAR 4.4 - ISO 21434 - ISO 26262 ## Use Cases - NETWORK system development - Bandwidth Optimization optimization - Production ECU implementation - Bus Monitoring optimization - Can optimization - Can Fd optimization - Ethernet optimization - Flexray optimization - Gateway optimization - Lin optimization - Message Scheduling optimization - Most optimization - Network Management optimization - Routing optimization ## Topics Covered ### Bandwidth Optimization - bandwidth-optimization-001 - bandwidth-optimization-002 - bandwidth-optimization-003 - bandwidth-optimization-004 - bandwidth-optimization-005 - bandwidth-optimization-006 - bandwidth-optimization-007 - bandwidth-optimization-008 - bandwidth-optimization-009 - bandwidth-optimization-010 - bandwidth-optimization-011 - bandwidth-optimization-012 - bandwidth-optimization-013 - bandwidth-optimization-014 - bandwidth-optimization-015 - bandwidth-optimization-016 ### Bus Monitoring - bus-monitoring-001 - bus-monitoring-002 - bus-monitoring-003 - bus-monitoring-004 - bus-monitoring-005 - bus-monitoring-006 - bus-monitoring-007 - bus-monitoring-008 - bus-monitoring-009 - bus-monitoring-010 - bus-monitoring-011 - bus-monitoring-012 - bus-monitoring-013 - bus-monitoring-014 - bus-monitoring-015 - bus-monitoring-016 ### Can - can-001 - can-002 - can-003 - can-004 - can-005 - can-006 - can-007 - can-008 - can-009 - can-010 - can-011 - can-012 - can-013 - can-014 - can-015 - can-016 ### Can Fd - can-fd-001 - can-fd-002 - can-fd-003 - can-fd-004 - can-fd-005 - can-fd-006 - can-fd-007 - can-fd-008 - can-fd-009 - can-fd-010 - can-fd-011 - can-fd-012 - can-fd-013 - can-fd-014 - can-fd-015 - can-fd-016 ### Ethernet - ethernet-001 - ethernet-002 - ethernet-003 - ethernet-004 - ethernet-005 - ethernet-006 - ethernet-007 - ethernet-008 - ethernet-009 - ethernet-010 - ethernet-011 - ethernet-012 - ethernet-013 - ethernet-014 - ethernet-015 - ethernet-016 ### Flexray - flexray-001 - flexray-002 - flexray-003 - flexray-004 - flexray-005 - flexray-006 - flexray-007 - flexray-008 - flexray-009 - flexray-010 - flexray-011 - flexray-012 - flexray-013 - flexray-014 - flexray-015 - flexray-016 ### Gateway - gateway-001 - gateway-002 - gateway-003 - gateway-004 - gateway-005 - gateway-006 - gateway-007 - gateway-008 - gateway-009 - gateway-010 - gateway-011 - gateway-012 - gateway-013 - gateway-014 - gateway-015 - gateway-016 ### Lin - lin-001 - lin-002 - lin-003 - lin-004 - lin-005 - lin-006 - lin-007 - lin-008 - lin-009 - lin-010 - lin-011 - lin-012 - lin-013 - lin-014 - lin-015 - lin-016 ### Message Scheduling - message-scheduling-001 - message-scheduling-002 - message-scheduling-003 - message-scheduling-004 - message-scheduling-005 - message-scheduling-006 - message-scheduling-007 - message-scheduling-008 - message-scheduling-009 - message-scheduling-010 - message-scheduling-011 - message-scheduling-012 - message-scheduling-013 - message-scheduling-014 - message-scheduling-015 - message-scheduling-016 ### Most - most-001 - most-002 - most-003 - most-004 - most-005 - most-006 - most-007 - most-008 - most-009 - most-010 - most-011 - most-012 - most-013 - most-014 - most-015 - most-016 ### Network Management - network-management-001 - network-management-002 - network-management-003 - network-management-004 - network-management-005 - network-management-006 - network-management-007 - network-management-008 - network-management-009 - network-management-010 - network-management-011 - network-management-012 - network-management-013 - network-management-014 - network-management-015 - network-management-016 ### Routing - routing-001 - routing-002 - routing-003 - routing-004 - routing-005 - routing-006 - routing-007 - routing-008 - routing-009 - routing-010 - routing-011 - routing-012 - routing-013 - routing-014 - routing-015 - routing-016 ## Constraints - AUTOSAR architecture adherence - ISO 26262 functional safety compliance - Real-time performance requirements - Resource constraints (CPU/Memory) ## Required Tools - AUTOSAR toolchain - MATLAB/Simulink - Static analyzer (Polyspace/Klocwork) - Vector CANoe/CANalyzer - bridge-utils (optional, legacy) - docker for container networking - ethtool for interface statistics - iproute2 (ip command) - iptables or nftables - tc (traffic control, part of iproute2) - tcpdump for packet capture ## Instructions ### bandwidth-optimization-001 ## Core Competencies Expert in bandwidth optimization for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### bandwidth-optimization-002 ## Core Competencies Expert in bandwidth optimization for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### bandwidth-optimization-003 ## Core Competencies Expert in bandwidth optimization for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### bandwidth-optimization-004 ## Core Competencies Expert in bandwidth optimization for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### bandwidth-optimization-005 ## Core Competencies Expert in bandwidth optimization for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### bandwidth-optimization-006 ## Core Competencies Expert in bandwidth optimization for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### bandwidth-optimization-007 ## Core Competencies Expert in bandwidth optimization for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### bandwidth-optimization-008 ## Core Competencies Expert in bandwidth optimization for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### bandwidth-optimization-009 ## Core Competencies Expert in bandwidth optimization for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### bandwidth-optimization-010 ## Core Competencies Expert in bandwidth optimization for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### bandwidth-optimization-011 ## Core Competencies Expert in bandwidth optimization for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### bandwidth-optimization-012 ## Core Competencies Expert in bandwidth optimization for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### bandwidth-optimization-013 ## Core Competencies Expert in bandwidth optimization for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### bandwidth-optimization-014 ## Core Competencies Expert in bandwidth optimization for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### bandwidth-optimization-015 ## Core Competencies Expert in bandwidth optimization for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### bandwidth-optimization-016 ## Core Competencies Expert in bandwidth optimization for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### bus-monitoring-001 ## Core Competencies Expert in bus monitoring for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### bus-monitoring-002 ## Core Competencies Expert in bus monitoring for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### bus-monitoring-003 ## Core Competencies Expert in bus monitoring for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### bus-monitoring-004 ## Core Competencies Expert in bus monitoring for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### bus-monitoring-005 ## Core Competencies Expert in bus monitoring for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### bus-monitoring-006 ## Core Competencies Expert in bus monitoring for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### bus-monitoring-007 ## Core Competencies Expert in bus monitoring for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### bus-monitoring-008 ## Core Competencies Expert in bus monitoring for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### bus-monitoring-009 ## Core Competencies Expert in bus monitoring for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### bus-monitoring-010 ## Core Competencies Expert in bus monitoring for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### bus-monitoring-011 ## Core Competencies Expert in bus monitoring for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### bus-monitoring-012 ## Core Competencies Expert in bus monitoring for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### bus-monitoring-013 ## Core Competencies Expert in bus monitoring for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### bus-monitoring-014 ## Core Competencies Expert in bus monitoring for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### bus-monitoring-015 ## Core Competencies Expert in bus monitoring for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### bus-monitoring-016 ## Core Competencies Expert in bus monitoring for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### can-001 ## Core Competencies Expert in can for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### can-002 ## Core Competencies Expert in can for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### can-003 ## Core Competencies Expert in can for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### can-004 ## Core Competencies Expert in can for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### can-005 ## Core Competencies Expert in can for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### can-006 ## Core Competencies Expert in can for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### can-007 ## Core Competencies Expert in can for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### can-008 ## Core Competencies Expert in can for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### can-009 ## Core Competencies Expert in can for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### can-010 ## Core Competencies Expert in can for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### can-011 ## Core Competencies Expert in can for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### can-012 ## Core Competencies Expert in can for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### can-013 ## Core Competencies Expert in can for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### can-014 ## Core Competencies Expert in can for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### can-015 ## Core Competencies Expert in can for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### can-016 ## Core Competencies Expert in can for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### CAN Network Analysis Skills ## CAN Network Analysis Guide ### Overview Controller Area Network (CAN) is the dominant serial bus in automotive systems, connecting ECUs for powertrain, chassis, body, and infotainment. CAN analysis involves capturing, decoding, filtering, and simulating CAN traffic to validate communication, diagnose faults, and verify timing requirements. ### CAN Protocol Fundamentals ``` CAN 2.0A Frame (Standard 11-bit ID): ┌─────┬────────┬─────┬─────┬──────────┬─────┬─────┬─────┬─────┐ │ SOF │ 11-bit │ RTR │ IDE │ DLC(4b) │Data │ CRC │ ACK │ EOF │ │ │ ID │ │ │ │0-8B │ 15b │ │ 7b │ └─────┴────────┴─────┴─────┴──────────┴─────┴─────┴─────┴─────┘ CAN 2.0B Frame (Extended 29-bit ID): ┌─────┬────────┬─────┬─────┬──────────┬────────┬─────┬──────────┬─────┬─────┬─────┐ │ SOF │ 11-bit │ SRR │ IDE │ 18-bit │ RTR │ DLC │ Data │ CRC │ ACK │ EOF │ │ │ Base │ │ │ Extended │ │ │ 0-8B │ │ │ │ └─────┴────────┴─────┴─────┴──────────┴────────┴─────┴──────────┴─────┴─────┴─────┘ CAN FD Frame (up to 64 bytes): ┌─────┬────────┬─────┬─────┬──────────┬─────┬─────┬──────────┬─────┬─────┬─────┐ │ SOF │ ID │ FDF │ BRS │ DLC(4b) │ ESI │ │ Data │ CRC │ ACK │ EOF │ │ │ 11/29b │ │ │ │ │ │ 0-64B │ │ │ │ └─────┴────────┴─────┴─────┴──────────┴─────┴─────┴──────────┴─────┴─────┴─────┘ ``` ### DBC File Format DBC (DataBase CAN) files define message and signal definitions: ```dbc VERSION "" NS_ : BS_: BU_: ECM TCM BCM ABS BO_ 256 EngineData: 8 ECM SG_ EngineRPM : 0|16@1+ (0.25,0) [0|16383.75] "rpm" TCM,BCM SG_ CoolantTemp : 16|8@1+ (1,-40) [-40|215] "degC" BCM SG_ ThrottlePos : 24|8@1+ (0.392157,0) [0|100] "%" TCM BO_ 512 TransmissionData: 4 TCM SG_ GearPosition : 0|4@1+ (1,0) [0|15] "" ECM,BCM SG_ TorqueRequest : 4|12@1+ (0.5,0) [0|2047.5] "Nm" ECM ``` Key DBC elements: - **BO_**: Message definition (ID, name, DLC, sender) - **SG_**: Signal definition (name, bit_position|bit_length@byte_order value_type) - Byte order: `1` = little-endian (Intel), `0` = big-endian (Motorola) - Value type: `+` = unsigned, `-` = signed - Scaling: `(factor, offset)` where `physical = raw * factor + offset` - Range: `[min|max]` ### Signal Encoding and Decoding ``` Decoding: physical_value = raw_value * factor + offset Encoding: raw_value = (physical_value - offset) / factor Example: EngineRPM signal Raw bytes: 0x1A 0x0B (little-endian) = 0x0B1A = 2842 Physical: 2842 * 0.25 + 0 = 710.5 RPM ``` Bit extraction for Motorola (big-endian) byte order requires careful bit numbering. The start bit refers to the MSB position in Motorola format, unlike Intel format where it refers to the LSB position. ### Bus Load Calculation ``` Bus load (%) = (total_bits_per_second / baudrate) * 100 Bits per CAN frame (worst case, with bit stuffing): Standard: 44 + 8*DLC + stuff bits (~5 per 4 data bits) Extended: 64 + 8*DLC + stuff bits Example at 500 kbit/s: Message 0x100 (8 bytes) at 100 Hz: Bits per frame ≈ 44 + 64 + ~25 stuffing = ~133 bits Load contribution = (133 * 100) / 500000 = 2.66% ``` A CAN bus should not exceed 70-80% load for reliable operation; above this threshold, lower-priority messages experience significant latency. ### CAN FD Differences | Feature | CAN 2.0 | CAN FD | |---------|---------|--------| | Max data | 8 bytes | 64 bytes | | Arbitration rate | Up to 1 Mbit/s | Up to 1 Mbit/s | | Data phase rate | Same as arbitration | Up to 8 Mbit/s | | DLC encoding | Linear (0-8) | Non-linear (0,1,..,8,12,16,20,24,32,48,64) | | CRC | 15-bit | 17-bit (<=16B) or 21-bit (>16B) | | Error detection | Standard | Improved (ISO CRC) | ### Error Frame Types | Error Type | Description | Cause | |-----------|-------------|-------| | Bit Error | Transmitted bit differs from monitored | Bus contention, driver fault | | Stuff Error | 6+ consecutive same-polarity bits | Noise, clock drift | | CRC Error | Received CRC does not match calculated | Data corruption | | Form Error | Fixed-form bit field has wrong value | Protocol violation | | ACK Error | No receiver acknowledges the frame | No listener, bus disconnected | ### Trace File Formats - **ASC**: Vector ASCII trace (human-readable, timestamps + frames) - **BLF**: Vector Binary Logging Format (compressed, efficient for large captures) - **CSV**: Comma-separated (portable but large) - **MDF/MF4**: ASAM Measurement Data Format (signal-level, not frame-level) - **PCAP**: Wireshark capture (for SocketCAN on Linux) ### Linux SocketCAN Setup ```bash # Load CAN kernel modules modprobe can modprobe can_raw modprobe vcan # Virtual CAN for testing # Create virtual CAN interface ip link add dev vcan0 type vcan ip link set up vcan0 # Configure real CAN interface ip link set can0 type can bitrate 500000 ip link set up can0 # CAN FD configuration ip link set can0 type can bitrate 500000 dbitrate 2000000 fd on # Send/receive with cansend/candump cansend vcan0 123#DEADBEEF candump vcan0 ``` ### Best Practices - Always validate DBC files before use (check for duplicate IDs, overlapping signals) - Monitor bus load continuously during integration testing - Use CAN FD for ECUs that need to transfer large payloads (e.g., diagnostics, calibration) - Log error frames alongside data frames for complete analysis - Verify message timing (cycle time, jitter) against the network design specification - Use virtual CAN (vcan) for unit testing CAN application logic without hardware - Filter captures early to reduce trace file sizes in long-duration tests ### can-fd-001 ## Core Competencies Expert in can fd for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### can-fd-002 ## Core Competencies Expert in can fd for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### can-fd-003 ## Core Competencies Expert in can fd for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### can-fd-004 ## Core Competencies Expert in can fd for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### can-fd-005 ## Core Competencies Expert in can fd for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### can-fd-006 ## Core Competencies Expert in can fd for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### can-fd-007 ## Core Competencies Expert in can fd for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### can-fd-008 ## Core Competencies Expert in can fd for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### can-fd-009 ## Core Competencies Expert in can fd for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### can-fd-010 ## Core Competencies Expert in can fd for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### can-fd-011 ## Core Competencies Expert in can fd for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### can-fd-012 ## Core Competencies Expert in can fd for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### can-fd-013 ## Core Competencies Expert in can fd for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### can-fd-014 ## Core Competencies Expert in can fd for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### can-fd-015 ## Core Competencies Expert in can fd for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### can-fd-016 ## Core Competencies Expert in can fd for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### ethernet-001 ## Core Competencies Expert in ethernet for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### ethernet-002 ## Core Competencies Expert in ethernet for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### ethernet-003 ## Core Competencies Expert in ethernet for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### ethernet-004 ## Core Competencies Expert in ethernet for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### ethernet-005 ## Core Competencies Expert in ethernet for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### ethernet-006 ## Core Competencies Expert in ethernet for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### ethernet-007 ## Core Competencies Expert in ethernet for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### ethernet-008 ## Core Competencies Expert in ethernet for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### ethernet-009 ## Core Competencies Expert in ethernet for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### ethernet-010 ## Core Competencies Expert in ethernet for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### ethernet-011 ## Core Competencies Expert in ethernet for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### ethernet-012 ## Core Competencies Expert in ethernet for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### ethernet-013 ## Core Competencies Expert in ethernet for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### ethernet-014 ## Core Competencies Expert in ethernet for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### ethernet-015 ## Core Competencies Expert in ethernet for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### ethernet-016 ## Core Competencies Expert in ethernet for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### flexray-001 ## Core Competencies Expert in flexray for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### flexray-002 ## Core Competencies Expert in flexray for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### flexray-003 ## Core Competencies Expert in flexray for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### flexray-004 ## Core Competencies Expert in flexray for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### flexray-005 ## Core Competencies Expert in flexray for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### flexray-006 ## Core Competencies Expert in flexray for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### flexray-007 ## Core Competencies Expert in flexray for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### flexray-008 ## Core Competencies Expert in flexray for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### flexray-009 ## Core Competencies Expert in flexray for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### flexray-010 ## Core Competencies Expert in flexray for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### flexray-011 ## Core Competencies Expert in flexray for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### flexray-012 ## Core Competencies Expert in flexray for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### flexray-013 ## Core Competencies Expert in flexray for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### flexray-014 ## Core Competencies Expert in flexray for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### flexray-015 ## Core Competencies Expert in flexray for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### flexray-016 ## Core Competencies Expert in flexray for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### gateway-001 ## Core Competencies Expert in gateway for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### gateway-002 ## Core Competencies Expert in gateway for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### gateway-003 ## Core Competencies Expert in gateway for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### gateway-004 ## Core Competencies Expert in gateway for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### gateway-005 ## Core Competencies Expert in gateway for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### gateway-006 ## Core Competencies Expert in gateway for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### gateway-007 ## Core Competencies Expert in gateway for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### gateway-008 ## Core Competencies Expert in gateway for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### gateway-009 ## Core Competencies Expert in gateway for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### gateway-010 ## Core Competencies Expert in gateway for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### gateway-011 ## Core Competencies Expert in gateway for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### gateway-012 ## Core Competencies Expert in gateway for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### gateway-013 ## Core Competencies Expert in gateway for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### gateway-014 ## Core Competencies Expert in gateway for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### gateway-015 ## Core Competencies Expert in gateway for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### gateway-016 ## Core Competencies Expert in gateway for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### lin-001 ## Core Competencies Expert in lin for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### lin-002 ## Core Competencies Expert in lin for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### lin-003 ## Core Competencies Expert in lin for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### lin-004 ## Core Competencies Expert in lin for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### lin-005 ## Core Competencies Expert in lin for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### lin-006 ## Core Competencies Expert in lin for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### lin-007 ## Core Competencies Expert in lin for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### lin-008 ## Core Competencies Expert in lin for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### lin-009 ## Core Competencies Expert in lin for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### lin-010 ## Core Competencies Expert in lin for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### lin-011 ## Core Competencies Expert in lin for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### lin-012 ## Core Competencies Expert in lin for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### lin-013 ## Core Competencies Expert in lin for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### lin-014 ## Core Competencies Expert in lin for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### lin-015 ## Core Competencies Expert in lin for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### lin-016 ## Core Competencies Expert in lin for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### message-scheduling-001 ## Core Competencies Expert in message scheduling for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### message-scheduling-002 ## Core Competencies Expert in message scheduling for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### message-scheduling-003 ## Core Competencies Expert in message scheduling for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### message-scheduling-004 ## Core Competencies Expert in message scheduling for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### message-scheduling-005 ## Core Competencies Expert in message scheduling for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### message-scheduling-006 ## Core Competencies Expert in message scheduling for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### message-scheduling-007 ## Core Competencies Expert in message scheduling for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### message-scheduling-008 ## Core Competencies Expert in message scheduling for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### message-scheduling-009 ## Core Competencies Expert in message scheduling for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### message-scheduling-010 ## Core Competencies Expert in message scheduling for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### message-scheduling-011 ## Core Competencies Expert in message scheduling for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### message-scheduling-012 ## Core Competencies Expert in message scheduling for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### message-scheduling-013 ## Core Competencies Expert in message scheduling for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### message-scheduling-014 ## Core Competencies Expert in message scheduling for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### message-scheduling-015 ## Core Competencies Expert in message scheduling for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### message-scheduling-016 ## Core Competencies Expert in message scheduling for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### most-001 ## Core Competencies Expert in most for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### most-002 ## Core Competencies Expert in most for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### most-003 ## Core Competencies Expert in most for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### most-004 ## Core Competencies Expert in most for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### most-005 ## Core Competencies Expert in most for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### most-006 ## Core Competencies Expert in most for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### most-007 ## Core Competencies Expert in most for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### most-008 ## Core Competencies Expert in most for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### most-009 ## Core Competencies Expert in most for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### most-010 ## Core Competencies Expert in most for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### most-011 ## Core Competencies Expert in most for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### most-012 ## Core Competencies Expert in most for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### most-013 ## Core Competencies Expert in most for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### most-014 ## Core Competencies Expert in most for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### most-015 ## Core Competencies Expert in most for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### most-016 ## Core Competencies Expert in most for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### network-management-001 ## Core Competencies Expert in network management for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### network-management-002 ## Core Competencies Expert in network management for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### network-management-003 ## Core Competencies Expert in network management for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### network-management-004 ## Core Competencies Expert in network management for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### network-management-005 ## Core Competencies Expert in network management for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### network-management-006 ## Core Competencies Expert in network management for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### network-management-007 ## Core Competencies Expert in network management for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### network-management-008 ## Core Competencies Expert in network management for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### network-management-009 ## Core Competencies Expert in network management for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### network-management-010 ## Core Competencies Expert in network management for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### network-management-011 ## Core Competencies Expert in network management for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### network-management-012 ## Core Competencies Expert in network management for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### network-management-013 ## Core Competencies Expert in network management for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### network-management-014 ## Core Competencies Expert in network management for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### network-management-015 ## Core Competencies Expert in network management for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### network-management-016 ## Core Competencies Expert in network management for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### routing-001 ## Core Competencies Expert in routing for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### routing-002 ## Core Competencies Expert in routing for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### routing-003 ## Core Competencies Expert in routing for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### routing-004 ## Core Competencies Expert in routing for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### routing-005 ## Core Competencies Expert in routing for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### routing-006 ## Core Competencies Expert in routing for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### routing-007 ## Core Competencies Expert in routing for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### routing-008 ## Core Competencies Expert in routing for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### routing-009 ## Core Competencies Expert in routing for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### routing-010 ## Core Competencies Expert in routing for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### routing-011 ## Core Competencies Expert in routing for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### routing-012 ## Core Competencies Expert in routing for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### routing-013 ## Core Competencies Expert in routing for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### routing-014 ## Core Competencies Expert in routing for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### routing-015 ## Core Competencies Expert in routing for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### routing-016 ## Core Competencies Expert in routing for automotive network systems. ## Approach 1. Analyze requirements against automotive standards 2. Design solution following AUTOSAR patterns 3. Implement with safety and security considerations 4. Validate per ISO 26262 requirements ## Deliverables - Technical specification - Implementation (C/C++/Model) - Test cases and results - Safety documentation ### virtual-ethernet ## Virtual Ethernet Networking for Automotive Testing ### Overview Virtual Ethernet (veth) interfaces and Linux network namespaces enable software- defined networking for automotive HIL (Hardware-in-the-Loop) and SIL (Software- in-the-Loop) testing. They allow simulating multi-ECU Ethernet topologies on a single host without physical hardware, supporting protocols like SOME/IP, DoIP, and Automotive Ethernet (100BASE-T1, 1000BASE-T1). ### Architecture ``` ┌─────────────────────────────────────────────────────────┐ │ Host Machine │ │ │ │ ┌──────────┐ ┌──────────┐ ┌──────────┐ │ │ │ NS: ECU1 │ │ NS: ECU2 │ │ NS: ECU3 │ │ │ │ veth-e1 │ │ veth-e2 │ │ veth-e3 │ │ │ └────┬─────┘ └────┬─────┘ └────┬─────┘ │ │ │ │ │ │ │ ┌────┴────┐ ┌────┴────┐ ┌────┴────┐ │ │ │ br-v1 │ │ br-v2 │ │ br-v3 │ │ │ └────┬────┘ └────┬────┘ └────┬────┘ │ │ └────────────┬───┘───────────────┘ │ │ ┌─────┴─────┐ │ │ │ br-switch │ (Linux bridge = L2 switch) │ │ └───────────┘ │ └─────────────────────────────────────────────────────────┘ ``` ### Key Concepts | Concept | Linux Tool | Purpose | |---------|-----------|---------| | veth pair | `ip link add type veth` | Point-to-point virtual cable | | Network namespace | `ip netns add` | Isolated network stack per ECU | | Bridge | `ip link add type bridge` | L2 switch connecting veth endpoints | | VLAN | `ip link add type vlan` | Network segmentation (powertrain, chassis) | | Traffic control | `tc qdisc add netem` | Latency, loss, bandwidth simulation | | TAP interface | `ip tuntap add mode tap` | Userspace networking (QEMU VMs) | | MACVLAN | `ip link add type macvlan` | Multiple MACs on one physical NIC | | VXLAN | `ip link add type vxlan` | Overlay network across physical hosts | ### Automotive Network Domains Typical automotive Ethernet topology uses VLANs or separate bridges to isolate safety-critical traffic from non-critical: ``` VLAN 10: Powertrain (ASIL-D) — Engine ECU, Transmission ECU VLAN 20: Chassis (ASIL-C) — ABS, ESC, EPS VLAN 30: ADAS (ASIL-B) — Camera ECU, Radar ECU, Fusion ECU VLAN 40: Body (QM) — BCM, Seat Control, Lights VLAN 50: Infotainment (QM) — HU, Telematics, Connectivity VLAN 99: Diagnostics — DoIP gateway, OBD access ``` ### Traffic Shaping for Realistic Testing Use `tc netem` to simulate real-world network conditions: ```bash # Automotive Ethernet (100BASE-T1): low latency, minimal loss tc qdisc add dev veth-ecu root netem delay 0.5ms 0.1ms rate 100mbit # Wireless link (V2X / telematics): variable latency, packet loss tc qdisc add dev veth-tcu root netem delay 50ms 20ms loss 2% rate 10mbit # Congested backbone: high utilization effects tc qdisc add dev veth-gw root netem delay 2ms 1ms loss 0.1% rate 1gbit ``` ### SOME/IP Service Discovery SOME/IP-SD uses multicast (default 224.244.224.245:30490). Virtual networks must enable multicast on bridges and configure IGMP snooping: ```bash ip link set br-someip multicast on ip route add 224.0.0.0/4 dev br-someip echo 1 > /sys/class/net/br-someip/bridge/multicast_snooping ``` ### Performance Considerations - veth pairs add ~2-5 microseconds of latency per hop - Bridges add ~5-10 microseconds of forwarding latency - Network namespaces have negligible overhead (kernel data structure only) - For high-throughput testing, consider XDP/eBPF instead of tc for filtering - Jumbo frames (MTU 9000) improve throughput for large transfers but all devices in the path must support the same MTU ### Integration with Container Runtimes Docker and Podman use veth pairs and bridges internally. For automotive testing, custom Docker networks provide isolation between ECU containers: ```bash docker network create --subnet 172.20.0.0/16 can-domain docker network create --subnet 192.168.0.0/16 eth-domain ``` A gateway ECU container can be attached to multiple networks to simulate the central gateway routing between domains. ### Best Practices - Document IP address allocation schemes for reproducibility - Use consistent naming (veth-ecu1, br-powertrain, ns-gateway) - Always clean up virtual interfaces after test sessions - Use traffic shaping to match real automotive Ethernet conditions - Combine virtual Ethernet with virtual CAN (vcan) for full-stack testing - Capture with tcpdump/Wireshark for protocol validation - Use network namespaces for process isolation rather than just IP separation - Monitor resource usage; large numbers of namespaces consume kernel memory