The S7700 series switches (S7700 for short) are high-end smart routing switches designed for nextgenerationenterprise networks. The S7700 design is based on Huawei’s intelligent multi-layer switching technology to provide intelligent service optimization methods, such as MPLS VPN, traffic analysis, comprehensive H-QoS policies, controllable multicast, load balancing, and security, in addition to high-performanceLayer 2 to Layer 4 switching services.
Optimized for Mid-to-High-End Network Upgrades The Huawei ES1D2C04HX2S Interface Card is engineered to serve mid-to-high-end enterprise and carrier-class network infrastructures deploying Huawei S7700-series switches. Designed specifically for slots 01–03 in the S7700 chassis, 01–06 in S7706, and 01–12 in S7712 chassis, this interface card facilitates scalable migration to 100GE connectivity. Its primary users include network engineers and system integrators requiring high-density uplink solutions for core and aggregation layers. The card supports efficient network expansion with Huawei’s multi-layer switching capability, ensuring that operators can accommodate increasing bandwidth demands while maintaining service quality and network stability.
Technical Features Delivering Robust Scalability This interface card features four independent 100GE QSFP28 ports, utilizing Huawei’s proprietary high-performance technologies for seamless integration into the S7700 product family. The Huawei ES1D2C04HX2S Interface Card measures 35.1 mm by 397.2 mm by 430.4 mm and weighs 3.05 kg, with a peak power consumption of 154.7 W. It supports intelligent service optimization including MPLS VPN, traffic analysis, H-QoS policies, multicast control, and load balancing. The use of QSFP28 connectors provides ultra-high-speed links, optimizing bandwidth density and throughput for demanding enterprise core networks and data centers. Its modular design supports flexible slot placement, enhancing network design adaptability and effective resource utilization.
Industry-Relevant Applications for Enhanced Network Performance The Huawei ES1D2C04HX2S Interface Card finds broad applicability in upgrading backbone and aggregation segments within enterprise networks and service provider infrastructures. It is instrumental in data center environments requiring high-bandwidth inter-switch uplinks and in scenarios demanding network capacity expansion in S7700, S7706, and S7712 chassis deployments. This card’s support for comprehensive Layer 2 to Layer 4 switching services, alongside advanced security mechanisms, ensures robust performance and compliance with stringent operational requirements. Its deployment enables accelerated network migration to 100GE, improving bandwidth headroom and supporting evolving digital transformation initiatives in public and private sector networks.
Product Advantages
Structural and Design Integration Advantages The Huawei ES1D2C04HX2S Interface Card integrates seamlessly into Huawei’s S7700-series chassis with slot flexibility ranging from 01–12 depending on the model, offering high-density expansion without compromising system design. Its compact dimensions and lightweight form factor allow efficient use of chassis space, supporting high port density within limited system footprints. Built with QSFP28 modular connectors, the card facilitates ease of plug-and-play installation and replacement in live network environments. Furthermore, Huawei’s engineering ensures compatibility with existing switch architecture, enhancing modularity and system scalability while minimizing configuration overhead in complex enterprise and operator network deployments.
Performance and User-Centric Benefits From a performance perspective, the Huawei ES1D2C04HX2S Interface Card provides stable and high-throughput communication via its four independent 100GE ports, accommodating traffic-heavy scenarios with minimal latency and jitter. The product’s intelligent QoS mechanisms, traffic analytics, and multicast load balancing enhance overall network efficiency and service quality. For network operators, this card simplifies bandwidth upgrades and supports intelligent traffic optimization strategies, thus improving return on investment through future-proof scalability. Its support for multi-service integration and high security reduces operational risks, delivering sustainable and manageable performance critical for complex enterprise core networks and cloud data centers.
Ports on the ES1D2C04HX2S
Attribute
Description
Connector type
QSFP28
Optical port attributes
Depend on the QSFP28 high-speed cable (1 m, 3 m, 5 m), QSFP+ high-speed cable (1 m, 3 m, 5 m), 40GE QSFP+ Optical Modules, 100GE QSFP28 Optical Modules or QSFP+ or QSFP28 AOC cable used.
Applicable cable
QSFP+ optical module and LC optical fiber
QSFP+ optical module and MPO optical fiber (MPO to MPO or MPO to 4*DLC optical fiber)
QSFP+ high-speed copper cable (QSFP+ to QSFP+ or QSFP+ to 4*SFP+)
QSFP+ AOC cable (QSFP+ to QSFP+ or QSFP+ to 4*SFP+)
QSFP28 optical module and LC optical fiber
QSFP28 optical module and MPO optical fiber (MPO to MPO)
QSFP28 high-speed copper cable
QSFP28 AOC cable
Specifications of the ES1D2C04HX2S
Item
Description
Physical specifications
Dimensions (H x W x D): 35.1 mm x 397.2 mm x 430.4 mm (1.38 in. x 15.64 in. x 16.95 in.)
Weight: 3.05 kg (6.72 lb)
Maximum power consumption: 154.7 W
Use Scenarios
Scaling Data Center Uplink Capacities Within a data center environment where demand for high-bandwidth inter-switch links is critical, the Huawei ES1D2C04HX2S Interface Card plays a pivotal role by providing four 100GE ports via QSFP28 connectors. This scenario demands low latency and high throughput to support virtualization, big data processing, and cloud services. The card’s high-density interface ensures streamlined uplink aggregation into core switches, enhancing bandwidth availability and reducing bottlenecks. Compliance with Huawei S7700 chassis slot standards ensures smooth integration into existing infrastructure, allowing data center operators to expand without hardware compatibility concerns. Its robust design supports uninterrupted network performance essential for enterprise data centers managing dynamic workloads.
Enhancing Enterprise Core and Aggregation Networks In enterprise network backbones, upgrading core and aggregation layers to support expanding data traffic is paramount. The Huawei ES1D2C04HX2S Interface Card enables network architects to increase 100GE link density across Huawei S7700, S7706, and S7712 chassis units. This facilitates scalable migration paths from slower interfaces to 100GE uplinks, helping organizations maintain operational continuity while enhancing bandwidth. The card’s embedded advanced switching technologies such as MPLS VPN and H-QoS policies enable flexible traffic management and superior service quality, critical for large campuses and multi-branch enterprises. Integration with network management systems enhances automation and reduces operational complexity during network scaling projects.
ES1D2C04HX2S FAQ
Q1: Is this line board compatible with the Huawei S9306 switch? Does it require a firmware upgrade?
A1: Fully compatible! Supports the entire S9300 series switches. Firmware versions V200R018 and above can be used directly without additional upgrades. It will automatically be recognized and enabled after being inserted into the slot.
Q2: Will there be a backplane bandwidth bottleneck when all four 10 Gigabit ports are running at full load simultaneously?
A2: No bottleneck! The line board has ample backplane bandwidth, supporting simultaneous 10GE full-load transmission from all four ports, with a total bandwidth of 40Gbps, fully meeting the needs of mid-range core networks.
Q3: What are the key differences between this and Huawei's 6-port high-end 10 Gigabit line board (such as LSS7C06HX6S0)? How to choose?
A3: The key difference lies in positioning and cost: The ES1D2C04HX2S (4 ports, high cost-performance) is suitable for mid-range scenarios with port requirements ≤ 4; the high-end 6-port model is suitable for high-density, high-end equipment. For mid-range networks and those with limited budgets, the 4-port model is a better fit.
Optical Modules Supported by Huawei S Series Switches
