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Name:

Ruijie RG-S6990-128QC2XS 128×400GE QSFP112 AIGC Data Center Switch

Model:
RG-S6990-128QC2XS
Detail:
Layer 3, 128×400GE QSFP112, 2×10GE SFP+, 102.4 Tbps switching, 21,000 Mpps forwarding, RDMA, PFC, ECN, 4RU.
Price:
$87,526.00 USD
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New
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Ruijie RG-S6990-128QC2XS Modular Data Center Core Switch

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 NS-S6990-128QC2XS sets a new standard for performance, availability, and future-proof design in modern networking infrastructure.

Overview

Highlights

  • High-Density Port Configuration: Offers 128 × 100GE QSFP28 and 2 × 400GE QSFP-DD ports, enabling exceptional bandwidth aggregation and spine-core scalability.

  • Massive Switching Capacity: Delivers a switching capacity of up to 25.6 Tbps, supporting full line-rate forwarding on all ports simultaneously.

  • 400G-Ready Architecture: Provides native 400GE support for next-gen data center uplinks and interconnects.

  • Advanced Layer 2/3 Support: Supports BGP, OSPF, IS-IS, MPLS, and Segment Routing for carrier-grade routing and interoperability.

  • Cloud Networking Features: Fully supports VXLAN, EVPN, and virtualization technologies for flexible, multi-tenant cloud environments.

  • High Availability: Features redundant control planes, hot-swappable line cards and power modules, and ISSU (In-Service Software Upgrade) for zero-disruption operations.

  • Comprehensive Security: Equipped with ACLs, control plane protection, ARP inspection, and MAC security for robust access and data protection.

  • 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

 

More Details

Quality Certifications

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Do you have any question about the Ruijie RG-S6990-128QC2XS Switches?

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or leave us an message on sales@network-switch.com

Warranty

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Return Material Authorization (RMA) Process

Standard Warranty Policy

Original New Sealed Enterprise Hardware: 3 Years
Original New Sealed Consumer Devices: 1 Year

The Support Contacts

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.

Customer Reviews

Based on 3 reviews
67%
(2)
33%
(1)
0%
(0)
0%
(0)
0%
(0)
O
Olivia Scott
Works fine

Happy with these switches, though setup instructions could be clearer. Service was responsive. Could use clearer LEDs.

L
Logan Richardson
Correspondeu ��s expectativas

Agrega??o de links sem quedas e painel intuitivo. Atendimento r��pido e educado. Works flawlessly in our rack.

B
Brian Yang
Excellent service experience

The configuration process was simple and efficient. Customer support responded quickly and was very helpful throughout.

Frequently Questions and Answers

Q1: What port density does the RG‑S6990‑128QC2XS offer?

A: The switch provides 128× QSFP112 ports (supporting 200 GE/400 GE) plus 2× 10 GE SFP+ ports for management and uplink.

Q2: What is the switching capacity and forwarding rate of this switch?

A: It delivers a massive 102.4 Tbps switching capacity and a forwarding rate of up to 21,000 Mpps .

Q3: How does the RG‑S6990 ensure low-latency and packet loss-free communication?

A: It leverages RDMA, PFC, and ECN to bypass CPU processing and support end-to-end lossless transport, ideal for AI and data center workloads .

Q4: What redundancy features are built into the RG‑S6990?

A: The chassis includes 2+2 hot-swappable power supplies and 4+1 hot-swappable fans, enabling hardware-level redundancy and nanosecond‑level failover .

Q5: What AI-based intelligent O&M functions does the switch offer?

A: It supports AI-powered auto ECN tuning, real-time telemetry, endpoint visualization, and congestion analytics via AI‑Fabric .

Q6: What hardware interfaces are available on this switch?

A: It includes service ports (128× QSFP112), management interfaces (1× RJ45 console, 1× RJ45 management), USB‑A port, plus multiple power and fan module slots .

Q7: What are its physical dimensions and power consumption?

A: The chassis is 4 RU (446×800×173.6 mm), weighs ~43 kg fully loaded, and consumes up to ~3.18 kW (typical ~2.34 kW) .

Q8: What is the target deployment scenario for the RG‑S6990?

A: Designed as a high-density data center core switch, it's ideal for AI‑Fabric networks, large enterprise backbones, cloud‑scale data centers, and DCI environments .

Q9: Does it support Layer 2 and Layer 3 features?

A: Yes, it supports full Layer 2/3 protocols including VXLAN, EVPN, BGP, OSPF, IS‑IS, MPLS, and Segment Routing .

Q10: What high-availability and maintenance features does it implement?

A: It offers ISSU (In-Service Software Upgrade), hot-swappable modules, redundant fabrics, and modular design for seamless upgrades and high availability .

Q11: What advanced security measures are included?

A: Security features include ACLs, control-plane protection, ARP inspection, MAC security, and secure management protocols .

Q12: What management protocols and interfaces are supported?

A: Management is supported via CLI, SNMP v1/2/3, NETCONF, RESTful API, and telemetry interfaces .

Q13: Can the RG‑S6990 integrate with optical modules and interconnect fabrics?

A: Yes—compatible with QSFP28 100G and QSFP-DD 400G optical modules for high-speed spine-core interconnectivity .

Q14: What rack‑mount and form‑factor details are available?

A: It is built as a 4‑RU rack‑mount chassis weighing ~43 kg fully equipped; space-efficient and robust .

Model Datasheet