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Which of the following does Hardware redundancy of OLT products include?
The correct answers arePower BoardandMain Control Board. Hardware redundancy is a critical feature of Optical Line Terminal (OLT) products to ensure high availability and fault tolerance in carrier-grade networks.
Power Board Redundancy:OLTs like the Huawei EA5800 support dual power supplies to prevent downtime in case of a power supply failure. This redundancy is essential for maintaining continuous service delivery.
Main Control Board Redundancy:The main control board manages system operations and traffic forwarding. Dual control boards ensure that if one fails, the backup takes over seamlessly, minimizing service disruption.
Other options:
Uplink Port:While uplink ports are critical for connecting the OLT to the core network, they are not typically redundant at the hardware level. Instead, redundancy is achieved through network design (e.g., multiple uplinks).
Service Port:Service ports connect to ONUs and are not individually redundant. However, the OLT's distributed architecture ensures that a failure in one port does not affect the entire system.
Huawei EA5800 OLT Product Documentation
ITU-T G.984.x Standards for GPON
Which of the following features can provide Real-time network quality monitoring, pre-warning, and optimization of link deterioration?
The correct answer isNetwork Doctor. TheNetwork Doctorfeature provides real-time monitoring, early warnings, and optimization capabilities to ensure high-quality network performance.
Here's how Network Doctor works:
Real-Time Monitoring:Tracks key performance indicators (KPIs) such as latency, jitter, packet loss, and bandwidth utilization.
Pre-Warning System:Detects anomalies and predicts potential issues before they impact services, enabling proactive intervention.
Link Optimization:Automatically adjusts network parameters to optimize link performance and prevent deterioration.
AI and Analytics:Leverages artificial intelligence and big data analytics to provideactionable insights and recommendations.
Other options:
Fiber Doctor:Focuses on physical fiber health rather than overall network quality.
Optical Doctor:Optimizes optical signal quality but does not monitor end-to-end network performance.
Service Doctor:Monitors specific services (e.g., IPTV, VoIP) but does not provide comprehensive network-wide insights.
Huawei Network Doctor Technology White Paper
ITU-T G.872 Standards for Optical Network Architecture
Huawei, as an industry leader, has the No. 1 ITU patent contribution.
Huawei is a global leader in telecommunications and networking technologies, and it has consistently rankedNo. 1 in ITU patent contributions. The International Telecommunication Union (ITU) is a specialized agency of the United Nations responsible for standardizing global telecommunications technologies. Huawei's significant contributions to ITU standards, particularly in areas like 5G, optical transport, and PON technologies, reflect its commitment to innovation and leadership in the industry.
These contributions not only demonstrate Huawei's technical expertise but also ensure that its products are aligned with the latest global standards, providing customers with cutting-edge solutions.
ITU Patent Contribution Reports
Huawei Annual Innovation Report
AES-128 is the encryption algorithm used by GPON for downstream.
GPON (Gigabit Passive Optical Network) does not use AES-128 encryption for downstream traffic. Instead, GPON uses AES-128 encryptiononly for upstream trafficto ensure data security between the Optical Network Unit (ONU) and the Optical Line Terminal (OLT). Downstream traffic in GPON is broadcasted to all ONUs, and encryption is not applied because the data is intended for multiple users. The encryption key is dynamically managed by the OLT and distributed securely to the ONUs.
This behavior is defined in theITU-T G.984 standard, which specifies the GPON architecture and security mechanisms. For downstream traffic, the security relies on higher-layer protocols (e.g., IPsec or application-level encryption).
ITU-T G.984 Standard - GPON Architecture and Security
Huawei GPON Technical Documentation
OptiXtrans DC908 has 8 slots, each slot is 5U wide.
The statement isFalse. TheOptiXtrans DC908does not have8 slots, nor are the slots5U wide. Instead, the DC908 is acompact 2U devicewith a fixed configuration, meaning it does not use modular slots like some other optical transport platforms.
Key characteristics of the DC908 include:
Fixed Configuration:The DC908 is designed as an all-in-one device, integrating optical modules, amplifiers, and control units into a single chassis.
Compact Design:Its2U heightand shallow depth (compatible with 600mm racks) make it ideal for space-constrained environments.
High Capacity:Despite its small size, the DC908 supports up to8Tbps per fiber pair, leveraging advanced technologies like 400G wavelengths.
The confusion may arise from other devices in the OptiXtrans series that use modular designs, but the DC908 itself is not slot-based.
Huawei OptiXtrans DC908 Product Documentation
ITU-T G.709 Standards for OTN
