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RG-S6120-20XS4VS2QXS 24-Port 10GE Layer 3 Managed Core and Aggregation Switch (with Four 25G SFP28 Ports, Backward Compatible with 10G), 40G Uplink

A Red Dot Design Award winner. Recommended core or aggregation switch for small and medium-sized enterprise deployment.



Highlight Features

  • Rich port types, 20 x 10G SFP+ ports,4 x 25G SFP28 ports, and 2 x 40G QSFP+ ports for uplink
  • VSU virtualization, flexible networking and high performance
  • Hardware redundancy, guaranteed service continuity and network connectivity
  • Network security policies and real-time monitoring, delivering enhanced network robustness
  • Abundant QoS policies for flexible resource allocation, congestion is a thing of the past
  • Multiple management modes, simple and easy maintenance

Key Specification

Layer 3 All-Optical 10GE Core & Aggregation Switch

Recommended aggregation switch for large-sized networks, or core switch for small and medium-sized networks. With 20 x 10G SFP+ ports and 4 x 25G SFP28 ports, the switch provides flexible access capabilities. The 2 x 40G QSFP+ uplink ports deliver high-speed uplink connectivity, fully satisfying the requirements of
high-performance networks.

VSU Virtualization, Flexible Networking and High Performance

Millisecond Failover

High Scalability

Simplified Networking

The VSU connects to peripherals through an aggregate link, realizing service switching in milliseconds upon a failure.

Hardware Redundancy, Guaranteed Service Continuity
and Network Connectivity

Hot-Swappable Power Modules + Intelligent Fan Modules

Hardware-Level Boot Redundancy

Optical Port Fault Isolation

Power modules can be replaced without affecting device operation. Intelligent fan speed regulation is supported for efficient cooling,
providing dual protection for the network.

Network Security Policies and Real-Time Monitoring, Delivering Enhanced Network Robustness



CPP protects the CPU from data attacks to ensure CPU stability under high usage, achieving significant improvement in the device's security performance.

Abundant QoS Policies for Flexible Resource Allocation,
Making Congestion a Thing of the Past

With multi-plane flow classification and control capabilities for MAC flow, IP flow and application flow, accurate resource allocation for multi-service traffic makes congestion a thing of the past, delivering high-quality networks.

Managed by the INC Controller to Achieve Easy and Efficient O&M Management

The switch automatically completes registration and
configuration after it accesses the all-optical network, achieving
plug and play, no commissioning and fast onboarding.
A switch can be flexibly replaced based on service needs
without reconfiguration. Service ports supports auto-sensing,
achieving automatic O&M.

Fast Onboarding

Zero Touch Replacement


Tips: Product information and performance will be affected by upgrade iteration, specific environment and other factors, so FAQ content is for reference only. For further information, please contact online support.





Basic specifications

Fixed ports

20  x 1G/2.5G/10GBASE-X SFP+ ports*

x 10G/25GBASE-X SFP28 ports,

x 40GBASE-X QSFP+ ports,

Support up to 32  x 10G ports,

2 modular power slots,

2 modular fan slots

Management ports

1 MGMT port

1 console port
1 USB port

Switching capacity


Forwarding rate


ARP Table

Up to 16K

Number of MAC addresses

Number of global MAC addresses: 32,768

Number of static MAC addresses: 1,000

Routing Table Size


ACL Entries

Up to 2500

Product Features


4K 802.1Q VLAN

Port-based VLAN

Private VLAN


Super VLAN


Basic QinQ

Link aggregation

LACP (802.3ad)

Port mirroring

Flow-based mirroring

Many-to-one mirroring, One-to-many mirroring


Link aggregation mirroring

Multiple Spanning Tree (MST) Instances


Spanning tree protocols


Maximum Aggregation Port (AP)



DHCP Server

DHCP Client

DHCP Snooping

DHCP Relay

IPv6 DHCP Snooping

IPv6 DHCP Client

IPv6 DHCP Relay

IPv6 protocols

IPv6 addressing, ICMPv6, Path MTU Discovery

IP routing

Static routing


OSPFv2, OSPFv3, IS-ISv4, IS-ISv6


Policy Based Routing



IGMP v1/v2/v3, IGMP proxy

IGMP v1/v2/v3 snooping

IGMP filtering, IGMP fast leave


MLD Snooping, MLD





Various hardware-based ACLs:

Standard IP ACL (Based on IP address)

Extended IP ACL (Based on IP address and TCP/UDP port number)

Extended MAC ACL (Based on source and destination MAC addresses and Ethernet type)

Time-based ACL

Expert ACL (Based on the flexible combination of VLAN ID, Ethernet type, MAC address, IP address, TCP/UDP port, protocol type and time)




Port-based traffic recognition

Port-based speed limit

802.1p/DSCP/TOS traffic classification

8 priority queues per port

Queue scheduling algorithms: SP, WRR, DRR, SP+WRR, SP+DRR, RED/WRED


Filter unauthorized MAC addresses

Broadcast storm suppression

Hierarchical management by administrators and password protection



BPDU Guard



SNMP, CLI (Telnet/Console), RMON (1,2,4,9), Syslog, NTP, SNMP over IPv6, IPv6 MIB support for SNMP, Telnet v6, FTP/TFTP v6, DNS v6, NTP for v6, Traceroute v6

Support sFlow to sample the packets of the switch traffic using the random sampling technology of data stream


VSU (virtualization technology for virtualizing multiple devices into 1); GR for RIP/OSPF/BGP; BFD; G.8032 (ERPS), REUP; RLDP; 1+1 power redundancy; Hot-swappable power module and fan module

VSU (Virtual Switch Unit)

Up to 2 stack members

Physical Specifications

Power supply

Supported power module: RG-PA150I-F

AC input:
Rated voltage range:

100 to 240VAC; 50/60Hz

Maximum voltage range:

90 to 264VAC; 47/63Hz
Rated input current: 3A

HVDC input:
Rated voltage range: 240VDC

Maximum voltage range: 192 to 288 VDC

Rated current per input: 3A

Power Consumption


Power Surge Protection

4KV (MGMT Port)

Power Supply Module (RG-PA150I-F): common mode 6KV/difference mode 6KV


Support 2 pluggable modular fans with front and rear air ducts

Support fan speed adjustment and malfunction alert

Temperature alarm

Support temperature alarm function


Operating temperature:

0°C to 50°C

Storage temperature:

-40°C to 70°C


Operating humidity: 10% to 90%RH

Storage humidity: 5% to 90%RH

Operating Altitude

0 to 5,000m


(W x D x H) (mm)

440 * 330 * 43.6(W * D * H,mm)

Rack Height



30 Years

Safety Standards


EN 62368-1:2014+A11:2017

Emission Standards

GB9254-2008 CLASSA

EN 55032:2015+AC:2016

EN 61000-3-2:2014

EN 61000-3-3:2013+A1:2019

EN 55035:2017

ETSI EN 300 386 V2.1.1 (2016-07)

* Support on latest version 12.6SPJ2



Order Information

Please order according to the below sections including switch models, expansion modules and power modules selection. The expansion modules and power modules may be updated at any time. Please consult the related personnel before ordering.





20 1G/10GBASE-X SFP+ ports, 4 10G/25GBASE-X SFP28 Ports, 2 40GBASE-X QSFP+ ports, support up to 32 10G ports, 2 modular power supply slots (at least one RG-PA150I-F power module), 2 modular fan slots (2 fan modules are equipped by default)


150W AC power module for RG-S6120-20XS4VS2QXS


1000BASE-GT mini GBIC transceiver


10G LC interface module for SFP+ ports (62.5/125μm: 33m; 50/125μm: 66m; 300m when the modal bandwidth is 2000MHz•km)


10G LC interface module for SFP+ ports (1310nm, 10km)


10G LC interface module for SFP+ ports (1550nm, 40km)


25G fiber module VG-SFP-SR-MM850


25G fiber module VG-SFP-LR-SM1310


10G SFP+ optical cable, 1 meter, including one cable + both side transceivers


10G SFP+ optical cable, 3 meters, including one cable + both side transceivers


10G SFP+ optical cable, 5 meters, including one cable + both side transceivers


25G SFP+ optical cable (including both side transceivers), 5 meters


40G SR fiber module for QSFP+ ports (OM3/OM4 MPO, 8-core, 850nm, 100m with OM3 fiber, 150m with OM4 fiber)

40G-QSFP-LR4 SM1310

40G LR single-mode fiber module for QSFP+ ports, transmission distance up to 10km (LC, 2-core, 1310nm)


40G QSFP+ optical cable, 5 meters, including one cable + both side transceivers


40G QSFP+ optical cable, 10 meters, including one cable + both side transceivers




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