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RG-S6250-48XS8CQ 10GE Data Center Access Switch

M-LAG/VSU/de-stacking for higher availability, PFC/ECN-based lossless RDMA network with high performance



Highlight Features

  • 48 x 10GE SFP+ ports and 8 x 100GE QSFP28 ports
  • Cross-device link aggregation (De-stacking/M-LAG/VSU), device-level redundancy, flexible networking, and high reliability
  • VXLAN tunneling technology, achieving unlimited data transmission and flexible resource allocation and scheduling
  • Lossless Ethernet, ensuring zero packet loss during RDMA E2E communication
  • Telemetry/gRPC/sFlow/SPAN-based network monitoring and automated O&M, making management simple and efficient

Key Specification

Data Center 100GE Access Switch RG-S6520-64CQ

100GE high-density access switch with 10GE/25GE/100GE downlink ports and 64 x 100GE uplink ports housed in a 2 RU enclosure for adaptation to different
scenarios, Large buffer and advanced buffer scheduling mechanism, providing fast data processing and easily coping with burst traffic

Cross-device Link Aggregation, Implementing Device-level Redundancy, Flexible Networking, and High Reliability




De-stacking technology logically aggregates multiple switches through LACP to allow servers on the same network segment or on different network segments to communicate. This eliminates the need to synchronize data between switches, without affecting service transmission.

PFC- and ECN-based Lossless Ethernet with High Throughput and Low Latency in RDMA Scenarios

With RDMA technology, data does not need to be handled by the CPU during device communication. This reduces the CPU burden
and effectively solves the network latency problem.
PFC+ECN, intelligent data exchange, and packet loss prevention, ensuring lossless data transmission

Telemetry-based Network Monitoring and Automated O&M,
Making Management Simple and Efficient

The switch enabled with telemetry provides clear data status and hierarchy.
The switch uses the push mode to proactively collect and push information and to provide sub-second-level network monitoring in real time, making network management more efficient and accurate.



Hardware Specifications

System Specifications



48 x 10GE ports and 8 x 100GE ports

Expansion Modules

Power supply module slots

Fan module slots

Management Port

One management port, one console port, and one USB port (compliant with the USB2.0 standard)

Switching Capacity


Packet Forwarding Rate

1920 Mpps

802.1Q VLAN


Dimensions and Weight


(W × D × H)

442 mm × 387 mm × 44 mm (17.40 in. x 15.24 in. x 1.73 in.), 1 RU


8 kg (17.64 lbs., including two power supply modules and four fan modules)

Power Supply and Consumption



Rated voltage range: 100 V AC to 240 V AC

Maximum voltage range: 90 V AC to 264 V AC

Frequency: 50 Hz to 60 Hz

Rated input current: 3.5 A to 7.2 A

High-Voltage DC (HVDC)

Input voltage range: 192 V DC to 288 V DC

Rated input current: 3.6 A

Low-Voltage DC (LVDC)

Input voltage range: –42 V DC to –72 V DC

Rated input voltage: –48 V DC

Rated input current: 23 A

Maximum Power Consumption

< 300 W

Environment and Reliability


Operating Temperature

0°C to 45°C (32°F to 113°F)

Operating Humidity

10% to 90% RH (Non-condensing)

Software Specification

Software Specification


L2 Protocols

IEEE802.3ad (Link Aggregation Control Protocol), IEEE802.1p, IEEE802.1Q, IEEE802.1D (STP), IEEE802.1w (RSTP), IEEE802.1s (MSTP), IGMP Snooping, MLD Snooping, Jumbo Frame (9 KB), IEEE802.1ad (QinQ and selective QinQ), and GVRP

L3 Protocols (IPv4)

BGP4, OSPFv2, RIPv1, RIPv2, MBGP, LPM Routing, Policy-based Routing, Routing Policy, ECMP, WCMP, VRRP, IGMP v1/v2/v3, PIM-SSM/SM/DM, MSDP, and Any-RP

Basic IPv6 Protocols

Neighbor Discovery, ICMPv6, Path MTU Discovery, DNSv6, DHCPv6, ICMPv6, ICMPv6 redirection, ACLv6, TCP/UDP for IPv6, SNMP v6, Ping/Traceroute v6, IPv6 RADIUS, Telnet/SSH v6, FTP/TFTP v6, NTP v6, IPv6 MIB support for SNMP, VRRP for IPv6, and IPv6 QoS

IPv6 Features

Static routing, ECMP, PBR, OSPFv3, RIPng, BGP4+, MLD v1/v2, PIM-SMv6, manual tunnel, automatic tunnel, IPv4 over IPv6 tunnel, and ISATAP tunnel

Data Center Features

VXLAN routing and VXLAN bridging

IPv6 VXLAN over IPv4



OpenFlow 1.3



sFlow sampling


802.1p, DSCP, and ToS priority mapping
ACL-based traffic classification
Priority marking and remarking
Queue scheduling mechanisms, including SP, WRR, DRR, SP+WRR, and SP+DRR
Congestion avoidance mechanisms, including WRED and trail drop




Virtual Switching Unit (VSU)

Cache Management

Cache status monitoring and traffic microburst identification

HA Design

GR for RIP/OSPF/BGP, BFD, DLDP, REUP dual-link fast switching, RLDP unidirectional link detection, 1+1 power redundancy, fan redundancy, and hot swapping for all line cards and power supply modules

Security Features

Network Foundation Protection Policy (NFPP), CPU Protection Policy (CPP), DDoS attack defense, unauthorized data packet detection, data encryption, source IP spoofing prevention, IP scanning prevention, RADIUS/TACACS, IPv4/v6 packet filtering by basic ACL, extended ACL or VLAN-based ACL, plaintext-based and MD5 authentication for OSPF, RIPv2, and BGPv4 packets, Telnet login and password mechanisms for restricted IP addresses, uRPF, broadcast packet suppression, DHCP Snooping, ARP spoofing prevention, ARP check, and hierarchical user management

Management Modes

SNMP v1/v2/v3, Telnet, Console, MGMT, RMON, SSH v1/v2, FTP/TFTP, NTP, Syslog, SPAN/RSPAN/ERSPAN, Telemetry, ZTP, NETCONF, Python, fan and power supply alarming, and over-temperature alarming

Other Protocols

DHCP Client, DHCP Relay, DHCP Server, DNS Client, UDP Relay, ARP Proxy, and Syslog

* indicates that the feature will be supported in the future.

Order Information

Take the following steps to configure an RG-S6250-48XS8CQ switch:

● Select the chassis.

● Select the fan and power supply modules.

● Select expansion modules based on service requirements.

● Select optical transceivers based on port requirements.

Chassis, Fan, and Power Supply Modules

Product Model



48 x 10GE ports and 8 x 100GE ports, supporting hot swapping
Two power supply module slots and four fan module slots
Power supply modules: RG-PA550I-F and RG-PD800I-F

Fan module: M1EFAN II-F


550 W power supply module (AC and 240 V HVDC)


800 W power supply module (48 V LVDC)


Fan module, supporting 3+1 redundancy, hot swapping, and front-to-rear airflow


100GE Optical Transceivers

Product Model



100GE SR optical transceiver, QSFP28 package, MPO connector, 850 nm wavelength, up to 70 m over OM3 optical fibers or 100 m over OM4 optical fibers


100GE LR optical transceiver, QSFP28 package, LC connector, 1310 nm wavelength, up to 10 km over SMF


100GE iLR optical transceiver, QSFP28 package, LC connector, 1310 nm wavelength, up to 2 km over SMF


40GE and 10GE Optical Transceivers

Product Model



40GE SR optical transceiver, QSFP+ package, MPO connector (used in combination with OM3/OM4 MPO optical fibers, 8-core, 850 nm wavelength), up to 100 m over OM3 optical fibers or 150 m over OM4 optical fibers


40GE SR optical transceiver, QSFP+ package, MPO connector (used in combination with OM3/OM4 MPO optical fibers, 8-core/12-core, 850 nm wavelength), up to 300 m over OM3 optical fibers or 400 m over OM4 optical fibers


40GE LR optical transceiver, QSFP+ package, LC connector (used in combination with LC optical fibers, 2-core, 1310 nm wavelength), up to 10 km over LC optical fibers


10GE SR optical transceiver, SFP+ package, up to 300 m


10GE LR optical transceiver, SFP package, up to 10 km


10GE ER optical transceiver, SFP+ package, up to 40 km


10GE ZR optical transceiver, SFP+ package, up to 80 km

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