WhileForward Error Correction (FEC)is a valuable feature in Huawei's SD-WAN solution for mitigating packet loss, it is not recommended to enable FEC forall traffic. FEC introduces additional overhead by transmitting redundant data, which can consume bandwidth and degrade performance for non-critical traffic.
Instead, FEC should be selectively enabled for sensitive applications (e.g., real-time voice and video) where packet loss has a significant impact. This approach balances performance and resource utilization effectively.
References:
HCSA-Presales-IP Network Study Guide, Section: "SD-WAN Packet Loss Mitigation Techniques." Huawei SD-WAN Solution Documentation, FEC Configuration Guidelines.

Huawei'sdata center autonomous driving networkis classified asL3: conditional autonomous network. This level represents a significant advancement in network automation, where the system can handle most tasks autonomously but still requires human oversight for complex or exceptional scenarios.The levels of autonomous driving networks are defined as follows:
L0:Fully manual operations with no automation.
L1:Basic automation with assisted O&M tools.
L2:Partial autonomy, where some tasks are automated.
L3:Conditional autonomy, enabling self-driving capabilities under specific conditions.
L4:High autonomy, capable of handling nearly all tasks without human intervention.
Huawei's L3 implementation ensures efficient and reliable operations while maintaining flexibility for human intervention when needed.
References:
HCSA-Presales-IP Network Study Guide, Section: "Autonomous Driving Network Levels." Huawei Autonomous Driving Network Documentation, L3 Capabilities.