Features
RG-S6990-128QC2XS – 128-Port 400GE Data Center Fixed Switch
The high-speed and high-density core switch provides 128 x 400GE ports housed in a 4-RU enclosure, delivering scalable, high-performance, and high-bandwidth services for large-scale DCI networks.
Eliminating Packet Loss During E2E Communication Through RDMA, Building High-Performance and Low-Latency Data Center Networks
PFC and ECN are leveraged to implement intelligent data exchange and eliminate packet loss. With the RDMA technology, data does not need to be handled by the CPU during device communication. This reduces the CPU load
and addresses network latency issues, ensuring lossless transmission of data. In addition, Remote Dynamic Load Balancing (RDLB) and Global Dynamic Load Balancing (GDLB) of the AI-Fabric solution solve the ECMP conflict caused by flow-based load balancing, improving the bandwidth and shortening the AI training time in AIGC intelligent computing scenarios.
Hardware-Level Redundancy, Ensuring Service Continuity and Preventing Network Downtime
Hot-Swappable Redundant Power Modules
The switch supports 2+2 power redundancy, enables failover in seconds, and ensures network connectivity during power replacement. This provides dual protection for links.
Hot-Swappable Redundant Fan Modules
The switch supports 4+1 fan redundancy with intelligent speed adjustment and efficient heat dissipation for building low-carbon data centers.
AI-Powered Intelligent O&M Making Management Easy and Efficient
The switch offers AI-powered automatic ECN tuning, real-time telemetry of key RoCE network metrics, visualization of endpoint status and RoCE services, along with congestion and packet loss analytics.
Specifications
Hardware Specifications
| Item | RG-S6990-128QC2XS |
| Dimensions
(W x D x H) |
446 mm x 800 mm x 173.6 mm (17.56 in. x 31.5 in. x 6.84 in.) |
| Rack height | 4 RU |
| Unit weight | 37.6 kg (82.89 lbs., empty chassis)
45 kg (99.21 lbs., a chassis with four power modules and five fan modules) |
| Switching capacity | 102.4 Tbps |
| Packet forwarding rate | 21000 Mpps |
| Service port | 128 x 100G/200G/400G QSFP112 ports
2 x GE/10GE SFP+ ports |
| Management port | 1 x RJ45 console port
1 x RJ45 MGMT port |
| USB port | 1 x USB 2.0 port (Type A connector) |
| Module slot | 4 x power module slots
5 x fan module slots |
| Power consumption | Maximum power consumption: 3160 W
Typical power consumption: 2432 W Static power consumption: 433 W |
| Power input | RG-PA1600II-F (AC input):
Rated input voltage: 100 V AC to 127 V AC, 200 V AC to 240 V AC, 50 Hz/60 Hz Maximum input voltage: 90 V AC to 140 V AC, 180 V AC to 264 V AC, 47 Hz to 63 Hz Rated input current: 12 A (100 V AC to 127 V AC) 9.5 A (200 V AC to 240 V AC) Power port type: C14
RG-PA1600II-F (HVDC input): Rated input voltage: 240 V DC Maximum input voltage: 180 V DC to 300 V DC Rated input current: 9.5 A Power port type: C14 |
| Temperature | Operating temperature: 0°C to 40°C (32°F to 104°F)
Storage temperature: –40°C to +70°C (–40°F to +158°F) Note: At altitudes ranging from 1,800 m (5,905.51 ft.) to 5,000 m (16,404.20 ft.), the maximum temperature decreases by 1°C (1.8°F) for every 200 m (656.17 ft) increase in elevation. |
| Humidity | Operating humidity: 10% RH to 90% RH (non-condensing)
Storage humidity: 5% RH to 95% RH (non-condensing) |
| Altitude | Operating altitude ≤ 5,000 m (16,404.20 ft.)
Storage altitude ≤ 5,000 m (16,404.20 ft.) |
| Cooling | Air cooling, front-to-rear airflow (port-side intake) |
Software Specifications
| Item | RG-S6990-128QC2XS |
| Layer 2 protocols | IEEE 802.3ae (10GBase), IEEE 802.3ak, IEEE 802.3an, IEEE 802.3x, IEEE 802.3ad (Link Aggregation Control Protocol), IEEE 802.1p, IEEE 802.1Q, IEEE 802.1D (STP), IEEE 802.1w (RSTP), IEEE 802.1s (MSTP), Jumbo Frame (9 KB) |
| Layer 3 protocols (IPv4) | BGP4, OSPFv2, RIPv1, RIPv2, LPM Routing, Policy-based Routing, Route-policy, ECMP, WCMP, VRRP |
| Basic IPv6 protocols | Neighbor Discovery, ICMPv6, Path MTU Discovery, DNSv6, DHCPv6, ICMPv6, ICMPv6 redirection, ACLv6, IPv6 TCP/UDP, SNMPv6, IPv6 Ping/Traceroute, IPv6 RADIUS, IPv6 Telnet/SSH, IPv6 FTP/TFTP, NTPv6, IPv6 MIB for SNMP, IPv6 VRRP, IPv6 QoS |
| IPv6 features | Static routing, ECMP, PBR, OSPFv3, RIPng, BGP4+ |
| Data center features | VXLAN, BGP-EVPN
RDMA PFC, ECN PFC deadlock prevention AI ECN ECN overlay Global loading balancing, Remote Adaptive Load Balancing (RALB), Artificial Intelligence Scene Load Balancing (AILB), end-to-network load balancing (ENLB), source port-based load balancing (SPLB) |
| Visualization | Telemetry
sFlow INT, MOD |
| QoS | IEEE 802.1p, DSCP, and ToS mapping ACL-based traffic classification Priority marking and re-marking Multiple queue scheduling mechanisms, including SP, WRR, WFQ, DRR, SP+WRR, SP+WFQ, SP+DRR Congestion avoidance mechanisms such as WRED and tail discarding |
| High redundancy design | GR for RIP/OSPF/BGP, BFD, DLDP, REUP, Rapid Link Detection Protocol (RLDP), 2 + 2 power redundancy, fan redundancy, and hot swapping of line cards and power modules |
| Security features | Network Foundation Protection Policy (NFPP), CPU Protection Policy (CPP), RADIUS/TACACS, IPv4/IPv6 packet filtering by basic ACL, extended ACL or VLAN-based ACL, cleartext and MD5-based authentication for OSPF, RIPv2, and BGPv4 packets, telnet from specified IP addresses, broadcast packet suppression, and hierarchical user management
MLAG |
| Management mode | SNMP v1/v2c/v3, telnet, console, MGMT, RMON, SSHv1/v2, FTP/TFTP, NTP clock, Syslog, SPAN/RSPAN/ERSPAN, ZTP, NETCONF, Python, fan and power alarm, temperature alarm |
| Other protocols | DHCP Client, DHCP Relay, DHCP Server, DNS Client, ARP Proxy, and Syslog |
Order Information
Chassis, Fan Modules, and Power Modules
| Model | Description |
| RG-S6990-128QC2XS | Fixed 128 x 400GE ports, 2 x 10GE ports, four power module slots, and five fan module slots |
| RG-PA1600II-F | Power module, hot swappable 2 + 2 redundancy, front-to-rear airflow |
| FAN80-180F | Fan module, hot swappable 4 + 1 redundancy, front-to-rear airflow |
1GE Optical Transceivers
| Model | Description |
| GE-SFP-LX20-SM1550-BIDI | 1GE LX transceiver, SFP form factor, BIDI LC, 1550 nm, 20 km (65,616.80 ft.) over SMF |
| GE-SFP-LX20-SM1310-BIDI | 1GE LX transceiver, SFP form factor, BIDI LC, 1310 nm, 20 km (65,616.80 ft.) over SMF |
| GE-SFP-LX03-SM1550-BIDI-I | 1GE LX transceiver, SFP form factor, BIDI LC, 1550 nm, 3 km (9,842.52 ft.) over SMF |
| GE-SFP-LX03-SM1310-BIDI-I | 1GE LX transceiver, SFP form factor, BIDI LC, 1310 nm, 3 km (9,842.52 ft.) over SMF |
| GE-SFP-LH40-SM1550-BIDI | 1GE LH transceiver, SFP form factor, BIDI LC, 1550 nm, 40 km (131,233.59 ft.) over SMF |
| GE-SFP-LH40-SM1310-BIDI | 1GE LH transceiver, SFP form factor, BIDI LC, 1310 nm, 40 km (131,233.59 ft.) over SMF |
| MINI-GBIC-ZX80-SM1550 | 1GE ZX transceiver, SFP form factor, duplex LC, 1550 nm, 80 km ( 262,467.20 ft.) over SMF |
10GE Optical Transceivers
| Model | Description |
| XG-SFP-AOC5M | 10GE AOC cable, SFP+ form factor, 5 m (16.40 ft.) |
| XG-SFP-LR-SM1310 | 10GE LR transceiver, SFP+ form factor, duplex LC, 1310 nm, 10 km (32,808.40 ft.) over SMF |
| XG-SFP-iLR-SM1310-I | 10GE LR transceiver, SFP+ form factor, duplex LC, 1310 nm, 1.4 km (4,593.18 ft.) over SMF |
100GE Optical Transceivers
| Model | Description |
| 100G-QSFP-ER4-SM1310 | 100GE ER4 transceiver, QSFP28 form factor, duplex LC, 1310 nm, 40 km (131,233.59 ft.) over SMF |
| 100G-QSFP-iLR4-SM1310 | 100GE iLR4 transceiver, QSFP28 form factor, duplex LC, 1310 nm, 2 km (6,561.68 ft.) over SMF |
| 100G-QSFP-LR4-SM1310 | 100GE LR4 transceiver, QSFP28 form factor, duplex LC, 1310 nm, 10 km (32,808.40 ft.) over SMF |
| 100G-QSFP-SR-MM850 | 100GE SR transceiver, QSFP28 form factor, MPO, 850 nm, 100 m (328.08 ft.) over OM4 MMF |
200GE Optical Transceivers
| Model | Description |
| 200G-Q56-SR4-MM850(D) | 200GE SR4 transceiver, QSFP56 form factor, MPO12/APC, 850 nm, 100 m (328.08 ft.) over OM4 MPO MMF, CMIS-compliance |
| 200G-Q56-SR4-MM850 | 200GE SR4 transceiver, QSFP56 form factor, MPO12/APC, 850 nm, 100 m (328.08 ft.) over OM4 MPO MMF, SFF-8636-compliance |
400GE Optical Transceivers
| Model | Description |
| 400G-Q112-DR4-SM1310 | 400GE DR4 transceiver, QSFP112 form factor, MPO-12 APC, 1310 nm, 500 m (1,640.42 ft.) over SMF |
| 400G-Q112-VR4-MM850 | 400GE VR4 transceiver, QSFP112 form factor, MPO-12 APC, 850 nm, 50 m (164.04 ft.) over OM4 MMF |