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            H3C S6520X-EI Series Enhanced 10GE Switches

            H3C S6520X-EI Switch Series ­—Industry-leading high performance and scalable Layer 3+ 10GE access switching solution with modular dual power, fixed or modular uplinks (10GbE/40GbE/100GbE) and IRF for resiliency. The series offers OSPF/BGP and multicast, SDN enabled and flexible management.

            The S6520X-EI switch series contains the following models:

            * H3C S6520X-54HC–EI—provides 48 × 1/10G SFP+ ports, 2 × QSFP28 ports(100G, can be split into four 25GE ports), 2 × expansion slots, 2 × fan tray slots, and 2 × power module slots

            * H3C S6520X-30HC–EI—provides 24 × 1/10G SFP+ ports, 2 × QSFP28 ports (100G, can be split into four 25GE ports), 2 × expansion slots, 2 × fan tray slots, and 2 × power module slots

            * H3C S6520X-54QC–EI—provides 48 × 1/10G SFP+ ports, 2 × QSFP+ ports (40GE, can be split into four 10GE ports.), 2 × expansion slots, 2 × fan tray slots, and 2 × power module slots

            * H3C S6520X-30QC–EI—provides 24 × 1/10G SFP+ ports, 2 × QSFP+ ports (40GE, can be split into four 10GE ports.), 2 × expansion slots, 2 × fan tray slots, and 2 × power module slots

            Learn more Show less
            • Features
            • Specification
            • Ordering Information
            • Resources
            • Software


            Open application architecture

            In H3C open application architecture (OAA), the switch can accommodate high-performance OAP modules to offer dedicated services such as firewall, IPS, or load balancing in addition to conventional forwarding services. By installing OAP modules, the customers can use the switch as a multiservice device without having to buy separate service appliances, such as a firewall device.

            High-density 10GE forwarding

            The switch offers high-density 10GE forwarding and can expand 10GE ports flexibly. It provides 48/24*10/1GE autosensing SFP+ ports, two QSFP28 or QSFP+ ports onboard, and two expansion slots that support up to 11 kinds of modules range from GE to 10GE, 25GE, 40GE,100GE and Multi-giga ports. Using a QSFP+ to SFP+ splitter cable, you can split a QSFP+ port into four line-rate 10GE SFP+ ports. Max 72*10GE supported on one single switch.

            Embedded Access Controller

            H3C S6520X-EI implements the WLAN function by installing an AC feature pack on the main control unit, thereby implementing both the wired function and the WLAN function on a single device. Embedded AC is a low-cost WLAN solution, save overall investment, improve forwarding capacity, realized a true unified wired and wireless solution in Campus. Max256 AP supported on one single switches.

            H3C Intelligent Resilient Framework 2 (IRF2)

            H3C Intelligent Resilient Framework 2 (IRF 2) virtualizes multiple S6520X-EI switches into one virtual switch and provides the following benefits:

            * Scalability—IRF 2 allows you to add devices to the IRF 2 system easily. It provides a single point of management, enables switch plug-and-play, and supports software auto-update for software synchronization from the master to the new member devices. It brings business agility with lower total cost of ownership by allowing new switches to be added to the fabric without network topology change as business grows.

            * High availability—The H3C proprietary routing hot backup technology ensures redundancy and backup of all information on the control and data planes and non-stop Layer 3 data forwarding in an IRF 2 fabric. It also eliminates single point of failure and ensures service continuity.

            * Redundancy and load balancing—The distributed link aggregation technology supports load sharing and mutual backup among multiple uplinks, which enhances the network redundancy and improves link resources usage.

            * Flexibility and resiliency—The switch uses standard GE ports instead of specialized ports for IRF links between IRF member devices. This allows customers to assign bandwidth as needed between uplink, downlink, and IRF system connections. In addition, an S6520X-EI IRF fabric can span a rack, multiple racks, or multiple campuses.

            Intelligent Resilient Framework 3.1 (IRF 3.1)

            Intelligent Resilient Framework 3.1 technology (IRF 3.1) is implemented based on IEEE 802.1BR. It integrates lower-layer devices (PEXs) such as access devices with a higher-layer IRF fabric (parent fabric) to provide high-density, low-cost connectivity at the access layer. You can manage and configure the PEXs from the parent fabric as if they were interface modules on the parent fabric.

            IRF 3.1 brings the following benefits: Single point of management; Unified security policy; Simplified network topology; Simplified service deployments; Easy scalability and maintenance.

            Wide range of advanced features

            The switch offers a wide range of features, including:

            * Modular hardware and software design—The switch uses modular, hot swapping, and redundancy design for hardware, including power modules and fan trays. The switch also uses modular design for software, which enables feature installation and removal on an as-needed basis. Refined physical architecture and optimized software workflows greatly reduce the end-to-end packet processing delay.

            * Software-defined networking (SDN)—An innovative network architecture that separates the control plane from the forwarding plane, typically by using OpenFlow. SDN significantly simplifies network management, reduces maintenance complexities and costs, enables flexible traffic management, and offers a good platform for network and application innovations.

            * Virtual eXtensible LAN (VXLAN)—A MAC-in-UDP technology that provides Layer 2 connectivity between distant network sites across an IP network. VXLAN enables long-distance virtual machine and data mobility and is typically used in data centers and the access layer of campus networks for multitenant services. The H3C implementation of VXLAN supports automatic VXLAN tunnel establishment with EVPN.

            * Ethernet Virtual Private Network (EVPN) is a Layer 2 VPN technology that provides both Layer 2 and Layer 3 connectivity between distant network sites across an IP network. EVPN uses MP-BGP in the control plane and VXLAN in the data plane.

            EVPN provides the following benefits: Configuration automation; Separation of the control plane and the data plane; Integrated routing and bridging (IRB).

            * In-Service Software Upgrade (ISSU) and Operation, Administration, and Maintenance (OAM)—Ensure business continuity and improve Ethernet management and maintainability.

            Comprehensive security control policies

            The switch supports AAA authentications (including RADIUS authentication) and dynamic or static binding of user identifiers such as user account, IP address, MAC address, VLAN, and port number.

            Using the switch in conjunction with H3C IMC, you can manage and monitor online users in real time and take prompt action on illegitimate behaviors.

            The switch offers a large number of inbound and outbound ACLs and VLAN-based ACL assignment. This simplifies configurations and saves ACL resources.


            MACsec is an ideal hop-by-hop link-layer security protocol for Ethernet networks, which are typically insecure. It provides the following services:

            * Data encryption—Encrypts data over the Ethernet link to protect data against security issues such as eavesdropping.

            * Anti-replay—Prevents packets from being intercepted and modified en route to protect the network against unauthorized access.

            * Tampering protection—prevents packet tampering to protect data integrity.

            * MACsec supports the following deployments:

            * Client-oriented—Protects data transmission over the link between the client and its access device.

            * Device-oriented mode—Protects data transmission over the link between two peering devices.

            The switch can cooperate with H3C iNode client and core switches such as S10500 and S7500E to provide a complete MACsec solution.

            High availability

            In addition to node and link protection, the switch offers the following hardware high availability features:

            * 1+1 power module redundancy and 1+1 fan tray redundancy.

            * Hot-swappable interface modules.

            * Automatic power and fan tray status monitoring and alarming mechanisms.

            * Automatic fan speed adjustment based on the change in temperature.

            * Self-protection mechanisms that protect power modules against overcurrent, overvoltage, and overtemperature conditions.

            Outstanding management capacity

            The switch provides a variety of management features and is easy to manage. It offers the following device management features:

            * Provides multiple management interfaces, including the console port, out-of-band management Ethernet port, and USB port.

            * Supports configuration and management from CLI or a general-purpose Web-based manager, including H3C IMC Intelligent Management Center.

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

            * Uses OAM to enhance system management capability.

            * Supports FTP for system upgrade.

            Smart Management Center (SmartMC)

            SmartMC is H3C’s latest offering and innovation that helps small and middle size enterprise network to address management issue and is free of charge, easy to use web management tool. SmartMC is embedded network management tool into the switch, it includes commander switches and other access switches.

            SmartMC delivers the following benefits:

            * Intelligent operation: once the switch is powered on and SmartMC function is enabled, topology will be created automatically and user can go enhanced web GUI to check the latest status.

            * Centralized management: all management can be achieved via commander switch such as centralized configuration backup, and software version management, increasing working efficiency.

            * One key device replacement: in case of one switch failure, the new added same type switch can download the same configuration and work as old switch immediately.





            Switching capacity



            Packet forwarding rate



            Dimensions (H × W × D)

            43.6 × 440 × 360 mm (1.72 × 17.32 × 14.17 in)


            ≤ 7 kg

            ≤ 7 kg



            Console ports

            1 (rear panel)

            Management Ethernet ports

            1 (rear panel)

            USB ports

            1 (rear panel)

            Service ports

            24 × 1/10GE SFP+ fiber ports

            2 × QSFP28 fiber ports(for S6520X-30HC-EI)

            2 × QSFP+ fiber ports(for S6520X-30QC-EI)

            48 × 1/10GE SFP+ fiber ports

            2 × QSFP28 fiber ports(for S6520X-54HC-EI)

            2 × QSFP+ fiber ports(for S6520X-54QC-EI)

            Expansion slots


            Expansion modules

            8-Port 10G SFP+ Interface Module

            8-Port 10G SFP+ with MACSec Interface Module

            8-Port 1/2.5/5G BASE-T Ethernet Copper Interface Module

            8-Port 1/2.5/5/10G BASE-T Ethernet Copper Interface Module

            2-port 25GE SFP28 interface module

            2-port 40GE QSFP+ interface module

            8-port 25GE SFP28 interface module

            2-port 100GE QSFP28 interface module (for S6520X-30HC-EI and S6520X-54HC-EI)

            Input voltage range

            Rated: 100 VAC to 240 VAC @ 50 Hz/60 Hz

            Max.: 90 VAC to 264 VAC @ 47 Hz to 63 Hz

            Fan trays

            Hot swappable fan trays, adjustable speed, and invertible airflow

            Idle power consumption

            Single AC: 38W

            Dual AC: 43W

            Single AC: 39W

            Dual AC: 44W

            Max. power consumption

            Single AC: 179W

            Dual AC: 183W

            Single AC: 231W

            Dual AC: 234W

            Operating temperature

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

            Operating humidity

            10% RH to 90% RH, non-condensing


            Intelligent Resilient Framework 2 (IRF2)

            Intelligent Resilient Framework 3.1 (IRF3.1)

            Distributed device management

            Distributed link aggregation

            Distributed resilient routing

            Stacking through standard Ethernet ports

            Local device stacking and remote device stacking

            LACP-, BFD-, and ARP-based multi-active detection (MAD)

            Link aggregation

            10GE/40GE/100GE port aggregation

            Static aggregation

            Dynamic aggregation

            Jumbo frame


            MAC address table

            Max. 128K MAC address entries

            Static MAC address

            Blackhole MAC address

            MAC learning limit


            OpenFlow 1.3.1


            VXLAN L2 switching

            VXLAN L3 routing

            VXLAN VTEP

            IS-IS+ENDP distributed control plane

            MP-BGP+EVPN distributed control plane

            OpenFlow+Netconf centralized control plane


            Port-based VLAN (up to 4094 VLANs)

            Default VLAN

            QinQ and flexible QinQ

            VLAN mapping

            PVST+ and RPVST+

            Traffic monitoring



            DHCP client

            DHCP snooping

            DHCP relay

            DHCP server

            DHCP snooping Option 82/DHCP relay Option 82


            Max. 64K ARP

            Static entry

            Gratuitous ARP

            Common proxy ARP and local proxy ARP

            Dynamic ARP inspection

            ARP anti-attack

            ARP source suppression

            ARP detection based on DHCP snooping safety entries, 802.1X entries, and IP/MAC static binding entries


            64K IPV4 routing entries

            32K IPV6 routing entries

            IPv4/IPv6 static routing

            Dynamic routing such as RIP v1/2 and RIPng

            Policy routing

            Equal-cost multi-path routing (ECMP)






            Neighbor Discovery (ND)


            ICMP v6, Telnet v6, SFTP v6, SNMP v6, BFD v6, VRRP v3

            IPv6 Portal

            IPv6 tunnel


            IGMP Snooping v2/v3

            IGMP Snooping fast-leave

            IGMP Snooping group-policy

            PIM-SM and PIM-SSM

            PIM snooping



            Enhanced Layer 3 multicast

            Zero configuration

            DHCP auto-config


            Strom suppression

            Storm suppression based on port bandwidth percentage

            Storm suppression based on PPS

            Storm suppression based on BPS

            Loop-free redundant Layer 2 topology


            STP Root Guard

            BPDU Guard

            G.8032 Ethernet ring protection switching (ERPS)


            Rate limit for receiving and transmitting packets


            Eight output queues per port

            Flexible queue scheduling algorithms based on both port and queue, including SP, WDRR, WRR, WFQ, and SP+WRR

            802.1p priority and DSCP priority

            Layer 2 to Layer 4 packet filtering

            Traffic classification based on source MAC, destination MAC, source IP, destination IP, port, protocol, and VLAN

            Time range



            Flow mirroring

            N:4 port mirroring

            Local port mirroring and remote port mirroring


            Hierarchical user management and password protection

            MAC-based authentication


            Storm constrain

            AAA authentication

            RADIUS authentication



            Port isolation

            IP/Port/MAC binding

            IP source guard



            Public Key Infrastructure (PKI)

            CPU protection

            Loading and upgrading

            Loading and upgrading through XMODEM/FTP/TFTP

            Loading and upgrading from USB

            Management and maintenance

            Configuration from CLI

            Login through Telnet, and the console port

            Job scheduler


            802.1ag and 802.3ah

            Simple Network Management Protocol (SNMP)

            IMC network management system

            System log

            Alarming based on severity


            Power, fan, and temperature alarming

            Debugging information output

            Ping and Tracert


            Telnet-based remote maintenance


            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

            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

            Product ID

            Product Description


            H3C S6520X-30QC-EI L3 Ethernet Switch(24SFP Plus+2QSFP Plus+2Slot),No Power


            H3C S6520X-54QC-EI L3 Ethernet Switch(48SFP Plus+2QSFP Plus+2Slot),No Power


            H3C S6520X-30HC-EI L3 Ethernet Switch(24SFP Plus+2QSFP28+2Slot),No Power


            H3C S6520X-54HC-EI L3 Ethernet Switch(48SFP Plus+2QSFP28+2Slot),No Power



            Ethernet Switch Fan Module(Power to Port Airflow)


            Ethernet Switch Fan Module(Port to Power Airflow)

            Power supply


            250W AC Power Supply Module


            250W AC Power Supply Module



            2-Port 40G QSFP Plus Interface Card


            8-Port 10G SFP Plus Interface Card


            8-Port 10G SFP Plus with MACSec Interface Module


            8-Port 25G SFP28 Interface Module


            2-Port 100G QSFP28 Interface Module

            Wireless license


            Enhanced Access Controller License,128 APs


            Enhanced Access Controller License,32 APs


            Enhanced Access Controller License,16 APs


            Enhanced Access Controller License,8 APs


            Enhanced Access Controller License,1 AP



            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)


            1000BASE-LH100 SFP Transceiver, Single Mode (1550nm, 100km, LC)


            1000BASE-LX BIDI SFP Transceiver, Single Mode (TX1310/RX1490, 10km, LC)


            1000BASE-LX BIDI SFP Transceiver, Single Mode (TX1490/RX1310, 10km, LC)


            1000BASE-T SFP


            SFP+ Module(1550nm,40km,LC)


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


            SFP+ Module(850nm,300m,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)


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


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


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



            Single Cable,Console Serial Port Cable,1.8m,D9F,28UL20276(4P)(P296U),MPH-8P8C


            SFP+ Cable 0.65m


            SFP+ Cable 1.2m


            SFP+ Cable 3m


            25G SFP28 to 25G SFP28 1m Passive Cable


            25G SFP28 to 25G SFP28 3m Passive Cable


            25G SFP28 to 25G SFP28 5m 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 1m Passive Cable


            100G QSFP28 to 4x25G SFP28 3m Passive Cable


            100G QSFP28 to 4x25G SFP28 5m Passive Cable


            100G QSFP28 to 100G QSFP28 7m Active Optical Cable


            100G QSFP28 to 100G QSFP28 10m Active Optical Cable


            100G QSFP28 to 100G QSFP28 20m Active Optical Cable


            Fiber Connector,MPO(8 core)/PC,8LC/PC(0.5m),Multimode(OM3),3.0mm,10.0m


            Fiber connector,MPO(8 core)/PC,MPO(8 core)/PC,Multimode(OM3),3.0mm,10.0m


            Fiber connector,MPO(8 core)/PC,MPO(8 core)/PC,Multimode(OM3),3.0mm,50.0m


            Fiber connector,MPO(8 core)/PC,MPO(8 core)/PC,Multimode(OM3),3.0mm,100.0m


            Fiber connector,MPO(8 core)/PC,MPO(8 core)/PC,Multimode(OM3),3.0mm,200.0m