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            H3C S6850 Series Data Center Switches

            H3C S6850 high-density intelligent switch series is developed for data centers and cloud computing networks. It provides powerful hardware forwarding capacity and abundant data center features. It provides up to 32*100G ports and two out-of-band management ports (one fiber port and one copper port). The 100G ports are 100G/40G autosensing and each 100G port can be split into 4 interfaces. This enables the switch to provide up to 128*25G and 10G ports. The switch supports modular power modules and fan trays. By using different fan trays, the switch can provide field-changeable airflows.

            The switch is an ideal product for high-density 100GE or 25GE switching and aggregation at data centers and cloud computing networks. It can also operate as a TOR access switch on an overlay or integrated network.

            The S6850 switch series has two models:

            * S6850-56HF: The switch provides 48 × 25G SFP28 ports, 8 × 100G QSFP28 ports, 2 × 1G SFP ports, 2 × out-of-band management ports, 1 × mini USB Console port, 1 × USB port, 5 × fan tray slots, and 2 × 650W AC or DC power module slots. The switch supports 1+1 power module redundancy.

            * S6850-2C: The switch provides 2 service slots, 2 × 100G QSFP28 ports, 2 × out-of-band management ports, 1 × mini USB Console port, 1 × USB port, 5 × fan tray slots, and 2 × 650W AC or DC power module slots. The switch supports 2+2 power module redundancy.

            Learn more Show less
            S6850-56HF front panel
            S6850-56HF front panel
            S6850-56HF rear panel
            S6850-56HF rear panel
            S6850-2C front panel
            S6850-2C front panel
            S6850-2C rear panel
            S6850-2C rear panel
            • Features
            • Specification
            • Ordering Information
            • Resources
            • Software


            High port density and powerful forwarding capacity

            The switch offers high-density 100G/40G/25G/10G ports and a forwarding capacity as high as 4 Tbps. With standard 25G ports, it can provide high-density server access in high-end data centers.

            Flexible programmability

            The switch uses industry-leading programmable switching chips that allow users to define the forwarding logic as needed.

            Users can develop new features that meet the evolving trend of their networks through simple software updates.

            Powerful visibility

            With the rapid development of data center, the scale of the data center expands rapidly; reliability, operation and maintenance become the bottleneck of data center for further expansion. H3C S6850 switch series conform to the trend of automated data operation and maintenance, and support visualization of data center. H3C S6850 switch series can send real-time resources information, statistics and alarm of RDMA information to the data center operation and maintenance platform through ERSPAN and GRPC protocols. This can allow the operation and maintenance center to perform real-time analysis in order to achieve network quality tracing, troubleshooting, risk warning and system optimization and etc. Visualization can even adjust network configuration automatically and reduce network congestion which makes it possible to move to automated data center operation and maintenance.

            Powerful SDN capacity

            H3C S6850 switch series adopt the next-generation chip with more flexible Openflow FlowTable, more resources and accurate ACL matching, which greatly improves the software-defined network (SDN) capabilities and meet the demand of data center SDN network.

            H3C S6850 switch series support standard Openflow protocol, which can be integrated and managed by H3C or mainstream cloud platforms or a third-party controller to support flexible network customization and automated management. Users and third-party controllers can use standard interfaces to develop and deploy a dedicated network management strategy for rapid business deployment, functional expansion, and intelligent device management.

            Abundant data center features

            The switch supports abundant data center features, including:

            * FCoE technology leverages Ethernet packet to carry FC packets. This means FC SAN and Ethernet LAN network can share the same network infrastructure, which is a good solution to solve the problems of coexistence between different types of network. S6850 switch series supports full FCoE and FC protocol stack. All downstream SFP+ ports can be switched to FC port to interoperate with FC SAN. As the FC SAN and Ethernet network are fully integrated, the entire network infrastructure is greatly simplified.

            * Software Defined Network (SDN) is an innovative network architecture that simplifies network management and reduces maintenance complexity. This is accomplished by separating network control layer and network forwarding layer through Openflow. More importantly, it implements flexible network flow control and provides a well-defined network platform for core network application and innovation.

            * H3C S6850 switch series supports DCB (Data Center Bridging), ISSU (In-service Software Upgrade), OAM (Operations, Administration and Maintenance) and Energy-Efficient Ethernet (EEE). It fully meets the high performance data center requirements, and is easy to manage with green energy consumption.

            * H3C S6850 switch series supports VXLAN (Virtual Extensible LAN), VXLAN uses a MAC-in-UDP encapsulation method where the original Layer 2 package is added a VXLAN header, and is then placed in a UDP-IP packet. With the help of MAC-in-UDP encapsulation, VXLAN tunnels Layer 2 network over Layer 3 network. This provides two major benefits, higher scalability of Layer 2 segmentation and better utilization of available network paths.

            * H3C S6850 switch series supports MP-BGP EVPN (Multiprotocol Border Gateway Protocol Ethernet Virtual Private Network) uses standard-based BGP protocol as the control plane for VXLAN overlay networks, providing BGP based VTEP auto peer discovery and end-host reachability information distribution. MP-BGP EVPN delivers many benefits, such as eliminating traffic flooding, reducing full mesh requirements between VTEPs via the introduction of BGP RR, achieving optimal flow based end to end load sharing and more.

            * H3C S6850 switch series support data center feature, such as Puppet and Chef, which can achieve data center automatic operation and management.

            H3C Intelligent Resilient Framework 2 (IRF2)

            H3C S6850 switch series is a pre-built with intelligent resilient Framework 2 (IRF2). IRF2 provides the following benefits:

            * High scalability: With IRF2, plug-n-play device aggregation can be achieved by adding one or more switches into the IRF2 stack, enabling IRF2 stacking on the new device. New devices can be managed with a single IP, and upgraded at the same time to reduce network expansion cost.

            * High reliability: The IRF2 patented 1:N backup technology allows each slave device in the IRF2 stack to serve as the backup of the master, creating control and data link redundancy, and uninterrupted layer-3 forwarding. This improves reliability, avoids unplanned business downtime, and serves to improve overall performance. When the master device fails, traffic remains uninterrupted.

            * Load balancing: IRF2 supports cross-device link aggregation, allowing upstream and downstream to be connected to more than one physical link. This creates another layer of network redundancy, and boosts the network resource utilization.

            * Availability: H3C Implements IRF2 through standard Hundred Gigabit Ethernet (100GE) or Forty Gigabit Ethernet (40GE) ports. It can allocate bandwidth for business and application access, and reasonably splits local traffic and upstream traffic. IRF2 rules are obeyed within and across the rack, but also across the LAN.

            Multiple reliability protection

            * The S6850 switch series provides multiple reliability protection at both switch and link levels. With over current, overvoltage, and overheat protection, all models have a redundant pluggable power module, which enables flexible configuration of AC or DC power modules based on actual needs. The entire switch supports fault detection and alarm for power supply and fan, allowing fan speed to change to suit different ambient temperatures.

            * The switch supports diverse link redundancy technologies such as H3C proprietary RRPP, VRRPE, and Smart Link. These technologies ensure quick network convergence even when large amount of traffic of multiple services runs on the network.

            Rich QoS features

            * H3C S6850 switch series support Layer 2 to Layer 4 packet filtering, which can provide traffic classification based on source MAC address, destination MAC address, source IP address, destination IP address, TCP/UDP port number, protocol type, and VLAN.

            * Each 100G port provides a flexible queues scheduling algorithm, which can be set based on ports and queues at the same time.

            * S6850 switch series supports five queuing modes include SP (Strict Priority), WRR (Weighted Round Robin), SP+WRR, WFQ, and SP+WFQ.

            * S6850 switch series supports CAR (Committed Access Rate) function with a minimum granularity of 8Kbps, and port mirroring on both directions used to monitor packets on the specified port and forward the packets to the monitoring port for network detection and troubleshooting.

            Excellent manageability

            The switch improves system management through the following ways:

            * Provides multiple management interfaces, including the serial console port, mini USB console port, USB port, two out-of-band management ports, and two SFP ports. The SFP ports can be used as in-band management port through which encapsulated sampling packets are sent to the controller or other management devices for deep analysis.

            * Supports multiple access methods, including SNMPv1/v2c/v3, Telnet, SSH 2.0, SSL, and FTP.

            * Supports GRPC that provides flexible programming interfaces for customization.

            * Supports Telemetry to perform real-time, high-speed, and precise device statistics collection.

            Flexible choice of airflows

            * To cope with data center cooling aisle design, the H3C S6850 switch series comes with flexible airflow design, which features bi-cooling aisles in the front and back. Users may also choose the direction of airflow (from front to back or vice versa) by selecting a different fan tray.

            Comprehensive security control policies

            * H3C S6850 switch series supports AAA, RADIUS and user account based authentication, IP, MAC, VLAN, port-based user identification, dynamic and static binding; when working with the H3C iMC platform, it can conduct real time management, instant diagnosis and crackdown on illicit network behaviour.

            * H3C S6850 switch series supports enhanced ACL control logic, which enables an enormous amount of in-port and out-port ACL, and delegate VLAN based ACL. This simplifies user deployment process and avoids ACL resource wastage. S6850 switch series can also take advantage of Unicast Reverse Path Forwarding (Unicast RFP). When the device receives a packet, it will perform the reverse check to verify the source address from which the packets are supposedly originated, and will drop the packet if such path doesn’t exist. This will crub the increasingly common originating address spoofing.


            Hardware specifications




            Dimensions (H × W × D)

            43.6 × 440 × 460 mm (1.72 × 17.32 × 18.11 in)

            44.2 × 440 × 660 mm (1.74 × 17.32 × 18.11 in)


            ≤ 15 kg (33.07 lb)

            ≤ 16 kg (35.27 lb)

            Serial console port



            Out-of-band management port

            One GE copper port and one GE fiber port

            One GE copper port and one GE fiber port

            Mini USB console port



            USB port






            QSFP28 port



            SFP28 port



            SFP port



            Expansion slot



            AC-input voltage

            90v AC to 264v AC

            90v AC to 264v AC

            DC-input voltage

            –40v DC to –72v DC

            –40v DC to –72v DC

            Power module slot



            Fan tray slot

            5 Hot-swappable fan, fan speed adjustable and wind invertible

            5 Hot-swappable fan, fan speed adjustable and wind invertible

            Air flow direction

            From front to rear or from rear to front

            From front to rear or from rear to front

            Power consumption


            Single AC: 167 W

            Dual AC: 179 W

            Single DC: 154 W

            Dual DC: 174 W

            Single AC: 136 W

            Dual AC: 148 W

            Single DC: 132 W

            Dual DC: 146 W

            Power Consumption

            (in full configuration)

            Single AC: 201 W

            Dual AC: 224 W

            Single DC: 198 W

            Dual DC: 210 W

            Single AC: 273 W ( with LSWM18CQ)

            Dual AC: 282 W( with LSWM18CQ)

            Single DC: 268 W( with LSWM18CQ)

            Dual DC: 275 W( with LSWM18CQ)

            Operating temperature

            0°C to 45°C (32°F to 113°F)

            Operating humidity (, noncondensing)

            5% to 95%

            Software specifications



            Line-rate switching

            Switching capacity

            4 Tbps


            Forwarding capacity

            2024 Mpps

            2024 Mpps



            Distributed device management, distributed link aggregation, and distributed resilient routing

            Stacking through standard Ethernet port

            Local and remote stacking

            Link aggregation

            10GE/25GE/40GE/100GE port aggregation

            Static aggregation, dynamic aggregation

            Data center


            802.1Qbb PFC, 802.1Qaz ETS, ECN, DCBX


            OpenFlow 1.3.1

            Multiple types of OpenFlow controllers

            EVPN distributed gateway

            NETCONF, Python

            Service chain

            RDMA and RoCE

            Jumbo Frame


            MAC address table

            Static MAC address

            Blackhole MAC address


            Port-based VLAN (quantity: 4094)

            Default VLAN

            Traffic monitoring



            DHCP server/client

            DHCP snooping/DHCP relay

            DHCP Snooping option82/DHCP Relay option82

            IPv6 DHCP server/client

            IPv6 DHCP snooping/DHCP relay


            Gratuitous ARP

            Dynamic ARP inspection

            ARP source-suppression

            ARP blackhole

            Multicast ARP

            ARP detection

            IP routing

            Stating routing, RIPv1/v2, OSPFv1/v2/v3, BGP, IS-IS

            ECMP, VRRP, policy-based routing

            BGP4+ for IPv6, VRRP, IPv6 policy-based routing

            RIPng, OSPFv3, ISISv6


            IPv6 ND

            IPv6 PMTU

            ICMPv6, Telnetv6, SFTPv6, SNMPv6, BFDv6, VRRPv3

            IPv6 portal/IPv6 tunnel


            IGMP snooping v2/v3



            IPv6 PIM-DM/SM/SSM

            Bi-directional -PIM, MSDP

            MLD snooping

            Multicast VPN


            Bidirectional PIM

            Multicast policy




            MPLS L3VPN





            STP Root Guard

            BPDU Guard


            Inbound and outbound traffic rate limit


            Eight output queues on each port

            Flexible port-and queue-based queuing and scheduling algorithms

            SP, WRR, WFQ, SP+WRR, and SP+WFQ queuing

            802.1p and DSCP priority re-marking

            Packet filtering at Layer 2 to Layer 4

            Traffic classification based on source MAC address, destination MAC address, source IPv4/IPv6 address, destination IPv4/IPv6 address, port number, protocol type, and VLAN

            Time range

            Inbound and outbound ACL

            VLAN-based ACL



            Traffic mirroring

            N:4 port mirroring

            Local port mirroring

            Remote port mirroring (multiple ports and reflector port)


            Hierarchical user management and password protection


            SSH 2.0

            IP address+MAC address+port number binding

            IP source guard




            MAC authentication


            IPv6 RADIUS server

            IPv6 port binding

            Loading and upgrading

            Loading/upgrading through the XMODEM protocol

            Loading/upgrading through FTP and TFTP

            Management and maintenance

            Configuration via CLI, Telnet, and Console port Scheduled job

            IRF-based ISSU






            System logs

            Hierarchical alarms

            NTP, SNTP

            Power, fan and temperature alarms

            Debugging information output

            Ping and tracert

            File uploading and downloading through the USB port


            FCC Part 15 Subpart B CLASS A

            ICES-003 CLASS A

            VCCI CLASS A

            CISPR 32 CLASS A

            EN 55032 CLASS A

            AS/NZS CISPR32 CLASS A

            CISPR 24

            EN 55024

            EN 61000-3-2

            EN 61000-3-3

            ETSI EN 300 386

            GB/T 9254

            YD/T 993


            UL 60950-1

            CAN/CSA C22.2 No 60950-1

            IEC 60950-1

            EN 60950-1

            AS/NZS 60950-1

            FDA 21 CFR Subchapter J

            GB 4943.1

            Ordering Information




            H3C S6850-56HF L3 Ethernet Switch with 48 SFP28 Ports and 8 QSFP28 Ports


            H3C S6850-2C L3 Ethernet Switch with 2*QSFP Plus Ports and 2*Interface Module Slots




            650W AC Power Supply Module


            650W DC Power Supply Module




            Fan Module with Port to Power Airflow


            Fan Module with Power to Port Airflow



            8-Port QSFP Plus Interface Card


            24-Port SFP Plus and 2-Port QSFP Plus Interface Card with MACSec


            24-Port 10GBASE-T and 2-Port QSFP Plus Interface Card with MACSec


            24-Port SFP Plus and 2-Port QSFP Plus Interface Card


            24 Ports SFP Plus and 2 Ports QSFP Plus Interface Card with FC


            H3C S6820 8-Port QSFP28 Ethernet Optical Interface Module


            H3C S6820 16-Port QSFP Plus Ethernet Optical Interface Module


            H3C S6820 24-Port SFP28 and 2-Port QSFP28 Ethernet Optical Interface Module


            H3C S6820 8-Port QSFP28 MACSEC Ethernet Optical Interface Module




            1000BASE-T SFP


            1000BASE-SX SFP Transceiver, Multi-Mode (850nm, 550m, LC)


            1000BASE-LX SFP Transceiver, Single Mode (1310nm, 10km, LC)


            1000BASE-LH40 SFP Transceiver, Single Mode (1310nm, 40km, LC)


            1000BASE-LH40 SFP Transceiver, Single Mode (1550nm, 40km, LC)


            1000BASE-LH80 SFP Transceiver, Single Mode (1550nm, 80km, LC)


            SFP+ Module(850nm,300m,LC)


            SFP+ Module(1310nm,10km,LC)


            25G SFP28 Optical Transceiver Module (850nm,100m,SR,MM,LC)


            40GBASE-LR4 QSFP+ Optical Transceiver Module


            QSFP+ 40GBASE Optical Transceiver Module (850nm,300m,CSR4,Support 40G to 4*10G)


            QSFP+ 40GBASE Optical Transceiver Module (850nm,100m,SR4,Support 40G to 4*10G)


            QSFP+ 40GBASE BIDI Optical Transceiver Module (850nm,100m,SR)


            QSFP+ 40GBASE Optical Transceiver Module (1310nm,2km,LR4L,LC)


            QSFP+ 40GBASE Optical Transceiver Module (1310nm,10km,MPO/APC,LR4,Parallel Single Mode)


            100G QSFP28 Optical Transceiver Module (850nm,100m OM4,SR4,MPO)


            100G QSFP28 Optical Transceiver Module (1310nm,500m,PSM4,MPO/APC)


            100G QSFP28 Optical Transceiver Module (1310nm,2km,LR4L,CWDM4,LC)


            100G QSFP28 Optical Transceiver Module(1310nm,10km,LR4,WDM,LC)




            SFP+ Cable 0.65m


            SFP+ Cable 1.2m


            SFP+ Cable 3m


            SFP+ Cable 5m


            25G SFP28 to 25G SFP28 1m Passive Cable


            25G SFP28 to 25G SFP28 3m Passive Cable


            40G QSFP+ Cable 1m


            40G QSFP+ Cable 3m


            40G QSFP+ Cable 5m


            40G QSFP+ to 4x10G SFP+ Cable 1m


            40G QSFP+ to 4x10G SFP+ Cable 3m


            40G QSFP+ to 4x10G SFP+ Cable 5m


            100G QSFP28 to 100G QSFP28 1m Passive Cable


            100G QSFP28 to 100G QSFP28 3m Passive Cable


            100G QSFP28 to 100G QSFP28 5m Passive Cable


            100G QSFP28 to 4x25G SFP28 3m Passive Cable


            100G QSFP28 to 4x25G SFP28 1m Passive Cable