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Ruijie RG-S6990-128QC2XS Switch Overview
The Ruijie RG-S6990-128QC2XS is a next-generation, ultra-high-performance modular data center core switch, purpose-built for cloud-scale data centers, carrier networks, and large enterprise backbones. Equipped with 128 × 100GE QSFP28 ports and 2 × 400GE QSFP-DD ports, this switch delivers massive switching capacity and flexibility for scalable, high-density network environments. With full Layer 2/3 protocol support, rich virtualization features, and advanced reliability mechanisms, the RG-S6990-128QC2XS sets a new standard for performance, availability, and future-proof design in modern networking infrastructure.
Highlights
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High-Density Port Configuration: Offers 128 × 100GE QSFP28 and 2 × 400GE QSFP-DD ports, enabling exceptional bandwidth aggregation and spine-core scalability.
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Massive Switching Capacity: Delivers a switching capacity of up to 25.6 Tbps, supporting full line-rate forwarding on all ports simultaneously.
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400G-Ready Architecture: Provides native 400GE support for next-gen data center uplinks and interconnects.
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Advanced Layer 2/3 Support: Supports BGP, OSPF, IS-IS, MPLS, and Segment Routing for carrier-grade routing and interoperability.
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Cloud Networking Features: Fully supports VXLAN, EVPN, and virtualization technologies for flexible, multi-tenant cloud environments.
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High Availability: Features redundant control planes, hot-swappable line cards and power modules, and ISSU (In-Service Software Upgrade) for zero-disruption operations.
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Comprehensive Security: Equipped with ACLs, control plane protection, ARP inspection, and MAC security for robust access and data protection.
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Energy-Efficient & Silent: Intelligent fan speed adjustment and low-power optical modules reduce operating costs and noise levels.
Recommended Accessories
| Product Model | Category | Description |
|---|---|---|
| QSFP-100G-LR4 | Optical Module | 100GBASE-LR4 QSFP28, 1310nm, single-mode fiber, 10km |
| QSFP-100G-ER4 | Optical Module | 100GBASE-ER4 QSFP28, 1550nm, single-mode fiber, 40km |
| QSFP-DD-400G-LR8 | Optical Module | 400GBASE-LR8 QSFP-DD, 1310nm, single-mode fiber, 10km |
| QSFP-DD-400G-DR4 | Optical Module | 400GBASE-DR4 QSFP-DD, single-mode fiber, 500m |
| CAB-QSFP28-QSFP28 | Direct Attach | 100G DAC cable, QSFP28 to QSFP28, 1m/3m/5m |
| CAB-QSFP-DD-QSFP-DD | Direct Attach | 400G DAC cable, QSFP-DD to QSFP-DD, 1m/3m |
Comparison with Similar Core Switches
| Feature | RG-S6990-128QC2XS | RG-S6980-64QC | RG-S6510-48GT4XS |
|---|---|---|---|
| 100GE Ports | 128 × QSFP28 | 64 × QSFP28 | — |
| 400GE Ports | 2 × QSFP-DD | None | None |
| Switching Capacity | 25.6 Tbps | 12.8 Tbps | 176 Gbps |
| Modular Design | Yes (Chassis) | Fixed | Fixed |
| Cloud Virtualization | VXLAN, EVPN | VXLAN | — |
| Use Case | Data Center Core | Aggregation/Core | Access Layer |
Specifications
| Parameter | Specification |
|---|---|
| Model | RG-S6990-128QC2XS |
| Port Configuration | 128 × 100GE QSFP28, 2 × 400GE QSFP-DD |
| Switching Capacity | Up to 25.6 Tbps |
| Forwarding Rate | Up to 19,048 Mpps |
| Routing Protocols | Static, OSPF, BGP, IS-IS, MPLS, Segment Routing |
| Virtualization | VXLAN, EVPN, VRF, GRE tunnels |
| MAC Address Table | Up to 512K entries |
| Jumbo Frame Support | Up to 9600 bytes |
| Security Features | ACLs, port security, ARP inspection, CP protection |
| High Availability | Hot-swappable components, ISSU, redundant fabrics |
| Management | SNMP v1/v2/v3, CLI, NETCONF, RESTful API, Telemetry |
| Operating Temperature | 0°C to 45°C (32°F to 113°F) |
| Dimensions (W×D×H) | 442 mm × 600 mm × 133 mm |
| Weight | ≤ 28 kg |
| Power Redundancy | Dual hot-swappable power modules |
| Warranty | Limited lifetime warranty |
Quality Certifications
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Standard Warranty Policy
Original New Sealed Enterprise Hardware: 3 Years
Original New Sealed Consumer Devices: 1 Year
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If your Ruijie products failed, you must contact your sales representative to verify product failure. If the problem still can't correct by remote support methods i.e. email or phone support, the RMA procedure will issue.
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At Network-switch.com, we aim to provide the best customer experience and ensure that your purchases meet your expectations. If for any reason you are not satisfied with your purchase, please read our return and refund policy below to understand your options.
Returns
You have the right to return products purchased from Network-switch.com under the following conditions:
Eligibility for Return: Items can be returned within 30 days from the date of delivery, provided that the product is in its original condition, unused, and in the original packaging.
Non-returnable Items: Certain items such as personalized or custom-made products, and items marked as non-returnable at the time of purchase, cannot be returned.
Return Process: To initiate a return, please contact our customer support team at help@network-switch.com. You will be provided with instructions on how to return the product and obtain a return authorization number if necessary.
Refunds
Refund Process: Once we receive your returned item and inspect it, we will process your refund to the original method of payment within 7-10 business days.
Refund Conditions: Refunds will be issued for the purchase price of the item, excluding any shipping, handling, or other additional fees. If the product is returned damaged, used, or missing parts, a partial refund may be issued.
Exchanges
If you would prefer to exchange an item for a different size, color, or model, please follow the same return process. Once we receive the returned product, we will send the replacement at no additional charge, based on availability.
Shipping Costs
Return Shipping Fees: You are responsible for paying the return shipping costs unless the item is defective, damaged, or incorrect.
Refund for Shipping Costs: Shipping costs are non-refundable, except in the case of defective or incorrect items.
Damaged or Incorrect Items
If you receive a damaged or incorrect item, please contact our customer service team within 7 days of receiving the product. We will exchange once the return is received.
Contact Us
If you have any questions or concerns about returns or refunds, please contact us at:
Email: help@network-switch.com
Before returning any products, please contact us to explain the issues you are experiencing. In many cases, we can resolve the problem through technical support, and you won't need to return the product.
If there are irreparable defects in the device, you can return it to us for repair or replacement under our twelve-month warranty. Simply reach out to us, and we will provide you with a return code, our return address, and any additional instructions.
Please do not return any items without first contacting us. We will guide you through the process, including the appropriate shipping methods.
Model Datasheet
- Ruijie-RG-S6990-128QC2XS-Data-Center-Core-Switch-Datasheet
- Ruijie-RG-S6980-64QC-Data-Center-Core-Switch-Datasheet
- Ruijie-RG-S6980-128DC-Data-Center-Core-Switch-Datasheet
- Ruijie-RG-S6930-2C-Data-Center-Core-Switch-Datasheet
- Ruijie-RG-S6920-4C-Data-Center-Core-Switch-Datasheet
- Ruijie-RG-S6910-3C-Switch-Datasheet