S6520X-30QC-HI Series Switches


 S6520X-30QC-HI— Provides 24 × 10G/1G SFP+ ports, 2 × QSFP ports, 2 x expansion slots, 2 × fan tray slots, and 2 × power module slots.

Large table size for next generation campus network
EVPN (Ethernet Virtual Private Network)
Open application architecture
High-density 10GE forwarding
Industry leading 100G uplink switch
Smart Management Center (SmartMC)
H3C Intelligent Resilient Framework 2 technology

  • Description
  • Reviews
  • H3C S6520X-EI/HI switch series is the next-generation high-density 10GE core/aggregation Ethernet switches. It offers powerful switching, high-density 10GE/40GE line-rate forwarding, and a variety of Layer 3 features. The switch supports two hot-swappable power modules and fan modules.

    Large table size for next generation campus network

    S6520X-EI/HI switch series is the first of its kind in enterprise to provide large table size for next generation campus, which brings customer highly flexibly to be deployed as mini-core of small and middle size campus network, access of carrier network or leaf node in latest EVPN solution.

    EVPN (Ethernet Virtual Private Network)

    H3C S6520X-EI/HI 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.

    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 switch can be used as a multiservice device without separated 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 forty-eight 10/1GE autosensing SFP+ ports, two QSFP ports, and two expansion slots that support 10GE/40GE fiber interface modules. Using a QSFP to SFP+ splitter cable, you can split a QSFP port into four line-rate 10GE SFP+ ports.

    Industry leading 100G uplink switch

    H3C S6520X-EI/HI switch series brings the latest HC series to the family, which features fixed 2-port 100G QSFP28 interface, together with 2-port 100G expansion module, one S6520X HC model can provide upto 6 100G QSFP28 ports.

    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

    H3C Intelligent Resilient Framework 2 technology

    H3C Intelligent Resilient Framework 2 (IRF 2) virtualizes multiple S6520X-EI/HI switch series 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 10/40GE 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/HI IRF fabric can span a rack, multiple racks, or multiple campuses.

    Wide range of features

    H3C S6520X-EI/HI switch series 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.
    • In-Service Software Upgrade (ISSU) and Operation, Administration, and Maintenance (OAM)—Ensure business continuity and improve Ethernet management and maintainability.

    Comprehensive security control policies

    H3C S6520X-EI/HI switch series 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.

    High availability

    In addition to node and link protection, H3C S6520X-EI/HI switch series 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 over temperature conditions.

    Outstanding management capacity

    H3C S6520X-EI/HI switch series 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.







    Dimensions (H × W × D)

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


    ≤ 7 kg

    ≤ 7.2 kg

    ≤ 7.4 kg

    ≤ 7.6 kg

    ≤ 7.5 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 × QSFP+ fiber ports

    48 × 1/10GE SFP+ fiber ports

    2 × QSFP+ fiber ports

    24 × 1/10GE SFP+ fiber ports

    2 × QSFP28 fiber ports

    48 × 1/10GE SFP+ fiber ports

    2 × QSFP28 fiber ports

    48 × 1/10GE SFP+ fiber ports

    2 × QSFP+ fiber ports

    Expansion slots


    Expansion modules

    2-port 10G SFP+ interface module

    8-port 10G SFP+ interface module

    2-port 40GE QSFP+ interface module

    2-port 10G SFP+ interface module

    8-port 10G SFP+ interface module

    2-port 40GE QSFP+ interface module

    2-port 100GE QSFP28 interface module

    8-port 25GE SFP28 interface module

    2-port 10G SFP+ interface module

    2-port 10G Base-T interface module

    8-port 10G SFP+ interface module

    2-port 40GE QSFP+ interface module

    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

    Single AC: 38W

    Dual AC: 43W

    Single AC: 44W

    Dual AC: 49W

    Single AC: 62W

    Dual AC: 69W

    Max. power consumption

    Single AC: 179W

    Dual AC: 183W

    Single AC: 231W

    Dual AC: 234W

    Single AC: 197W

    Dual AC: 200W

    Single AC: 249W

    Dual AC: 251W

    Single AC: 198W

    Dual AC: 201W

    Operating temperature

    0ºC to 45ºC (32°F to 113°F)

    Operating humidity

    10% RH to 90% RH, non-condensing


    Intelligent Resilient Framework 2 (IRF2)

    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 port aggregation

    100GE port aggregation (HC model)

    Static aggregation

    Dynamic aggregation

    Jumbo frame


    MAC address table

    Static MAC address

    Blackhole MAC address

    MAC learning limit


    OpenFlow 1.3.1


    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


    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


    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


    Layer 2 switching

    Layer 3 routing

    VXLAN gateway

    OpenFlow+NETCONF VXLAN centralized control plane

    MP-BGP+EVPN distributed control plane




    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

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