H3C S12500 Series Data Center Switches

                HomeProducts & TechnologyEnterprise ProductsSwitchesH3C S12500 Series Data Center Switches
                H3C S12500

                The H3C S12500 DataCenter Cloud Core Switch Series is designed for cloud services data centers. It provides the following features:

                CLOS+ multi-grade multi-plane architecture

                Industry’s highest performance core switch with 768 line-speed 40G/100G interface per chassis

                Integration of IRF2 (Intelligent Resilient Framework version 2), and MDC (Multi-tenant Device Context) to implement virtual resource pools

                Distributed ingress buffers (200 ms) to accommodate burst traffic in data centers

                Independent control, detection, and maintenance engines to implement 50ms failover and powerful control capabilities

                The S12500 switch series includes S12504X-AF, 12508X-AF and S12516X-AF, which meet various port density and performance requirements. The S12500 switch series can work with H3C routers, switches, security devices, IMC, and H3Cloud to provide a wide variety solutions

                Advanced CLOS+ multi-grade multi-plane switching architecture

                CLOS+ multi-grade multi-plane architecture, midplane free design, providing continuous bandwidth upgrade capability

                Supports industry first 48-port 40GE/ 100GE interfaces and can meet the existing and future application requirements of data centers

                Adopts independent switching fabric modules and MPU engines to improve device availability and ensure bandwidth expansion

                Virtualization technologies – IRF2

                IRF2 can virtualize up to two S12500 switches into one logical IRF fabric. IRF2 delivers the following benefits:

                High Availability (HA) - Patented hot standby technology provides data backup and non-stop forwarding on the control plane and data plane. It improves availability and performance, eliminates single-point of failures, and ensures service continuity

                Distribution - Multi-chassis link aggregation to enable load sharing and backup over multiple uplinks, improving redundancy and link utilization

                Easy Management - A single IP address to manage the whole IRF fabric, which simplifies device and topology management, improving operating efficiency, and lowering network maintenance cost

                Virtualization technologies - MDC

                MDC virtualizes one S12500 switch into multiple logical switches, enabling multiple services to share one core switch. The 1:N virtualization maximizes switch utilization, reduces network TCO, and ensures secure isolation of services

                DC-oriented features

                EVI—EVI is a MAC-in-IP technology that provides Layer 2 connectivity between distant Layer 2 network sites across an IP routed network. It is used for connecting geographically dispersed sites of a virtualized large-scale data center that requires Layer 2 adjacency

                FCOE—Integrates heterogeneous LANs and storage networks in data centers. FCOE and CEE integrate data, computing, and storage networks in data centers, reducing the costs for building and expanding data centers

                VXLAN (Virtual Extensible LAN) —VXLAN uses a MAC-in-UDP encapsulation method where the original Layer 2 package is added with 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 which provides two major benefits: higher scalability of Layer 2 segmentation and better utilization of available network paths

                MP-BGP EVPN ( Mutliprotocol Border Gateway Protocol Ethernet Virtual Private Network) MP-BGP EVPN 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

                Large capacities for storing ARP/ND, MAC, and ACL entries

                Innovative multi-engine design

                Independent control, detection, and maintenance engines provide powerful control capability and millisecond-level HA:

                Independent control engine— Uses a powerful CPU system that can efficiently process protocol and control packets, providing refined control for protocol packets and comprehensive protection against protocol packet attacks

                Independent detection engine— Provides highly reliable Fast Fault Detection and Restoration (FFDR) such as BFD and OAM, which can interact with protocols on the control plane to implement millisecond-level failover and convergence, ensuring service continuity

                Independent maintenance engine—Uses an intelligent Embedded Maintenance Subsystem (EMS), a CPU system that provides smart power management, including sequential power-on and power-off and device status check. Sequential power-on and power-off reduces power impulse, electromagnetic radiation, power consumption, and extends the device lifespan

                DC-class HA

                FFDR provides BFD and OAM functions to implement fast failover and convergence. The following lists the DC-class HA features:

                BFD for VRRP/BGP/IS-IS/RIP/OSPF/RSVP/static routing

                NSR/GR for OSFP/BGP/IS-IS/RSVP

                Separation of control and data planes through independent control engine and switching fabric module.

                1+1 redundancy for control engines

                N+1 redundancy for switch fabric modules

                1+1 redundancy for fan trays

                N+M redundancy for power modules

                Multi-level security protection

                The S12500 switch series use QoS policies to filter and limit traffic from data plane to control plane. During a DoS attack, the switch can identify and protect important packets and discard attack packets, ensuring normal operation

                Supports a large numbers of ACLs while ensuring line-speed forwarding. ACLs can identify and control L2/IPv4/IPv6/MPLS traffic by using combinations of packet fields

                The S12500 switch series supports hardware level encryption technology MACsec (802.1ae), which is an industry-standard security technology that provides secure communication for all traffic on Ethernet links.

                Distributed buffering and precise QoS

                Distributed ingress buffers accommodate burst traffic. Each port performs a precise bandwidth assignment and traffic shaping for incoming traffic, and distributes the traffic to ingress buffers. Distributed buffering can fully utilize the buffers of line cards to ensure best buffering performance

                A network model change from C/S to B/S leads to increased volumes of burst traffic. Network devices must have larger buffering capabilities to support this. The S12500 series supports 200 ms buffering of burst traffic per 10G interface, which can meet the burst traffic requirements of large data centers

                Each chip can support 4GB buffer, maximum of 24GB buffer per line card

                Each line card supports a maximum of 96K hardware queues, refined QoS, and traffic management. QoS can assign different priorities and queues to different users to provide differentiated services

                Comprehensive maintenance and monitoring

                Online state monitoring - Uses a dedicated engine to monitor the state of switch fabric modules, backplane channels, service communication channels, key chips, and storage. Once a failure occurs, it reports the failure to the system through EMS

                Card isolation- Isolates specified cards from the forwarding plane. The isolated cards still work on the control plane, allowing the user to perform management operations such as real-time diagnosis and CPLD upgrade on the isolated cards without affecting system operation

                Ethernet OAM- Provides multiple device-level and network-level fault detection methods


                Intelligent EMS engine system - Provides smart power management that supports sequential power-on and power-off and device status check. Sequential power-on and power-off reduces power impulse and electromagnetic radiation, and increases the lifetime of the device. Additionally, device status checks can isolate faulty and idle cards to reduce power consumption

                Smart fan management- Collects fan temperature, calculates fan speed, and assigns the calculated speed to the fan tray. In addition, it detects fan speeds, fault alarms, and performs speed adjustment based on configuration sand area, reducing power consumption and noise, increasing the fan's lifetime

                Internal interface monitoring-Automatically shuts down unused internal interfaces to reduce power consumption

                RoHS compliance - The S12500 switch series meets the EU RoHS safety standards.

                The S12500 switch series is designed with front to back air flow, satisfying highly efficient heat dissipation requirements in data centre.

                Hardware Specifications





                Switching capacity








                MPU slots




                LPU slots




                Maximum power consumption

                4800 W

                9600 W


                Weight (full configuration)

                ≤ 100 kg

                ≤ 220.5 lb

                ≤ 190 kg

                ≤ 418.9 lb

                ≤ 350 kg

                ≤ 771.6 lb

                Dimensions (H x W x D)

                264 x 440 x 857 mm (6U)

                10.4 x 17.3 x 33.7 in

                531 x 440 x 857 mm (12U)

                20.9 x 17.3 x 33.7 in

                931 x 440 x 857 mm (21U)

                36.7 x 17.3 x 33.7 in

                Switching fabric module slots




                MPU Name







                MPU processor

                Quad Core 1.2 GHz

                Quad Core 1.2 GHz

                Quad Core 1.2 GHz

                MPU SDRAM

                8 GB

                16 GB

                8 GB

                16 GB

                8 GB

                16 GB

                MPU Flash

                1 GB

                1 GB

                1 GB

                MPU Console Port




                MPU MGMT Ports

                2x 10/100/1000M Base-T

                2x 1000M SFP

                2x 10/100/1000M Base-T

                2x 1000M SFP

                1x 10/100/1000M Base-T

                1x 1000M SFP

                2x 10/100/1000M Base-T

                2x 1000M SFP

                1x 10/100/1000M Base-T

                1x 1000M SFP

                MPU USB Port





                Redundant MPUs, switching fabric modules, power modules, and fan trays

                Software Specifications


                IEEE 802.1Q



                Static MAC configuration

                Limited MAC learning

                Port mirroring and traffic mirroring

                Port aggregation, port isolation, and port mirroring

                IEEE 802.1D (STP)/802.1w (RSTP)/802.1s (MSTP)

                IEEE 802.3ad (dynamic link aggregation), static port aggregation, and multi-chassis link aggregation


                Static routing, RIP, OSPF, IS-IS, and BGP4

                VRRP, VRRP load balancing


                Policy-based routing

                Routing policy

                GRE, IPv4 in IPv4 tunneling


                IPv4/IPv6 dual stack

                IPv6 static routing, RIPng, OSPFv3, IS-ISv6, and BGP4+

                VRRPv3 and VRRPv3 load balancing

                ND and PMTUD

                Pingv6, Telnetv6, FTPv6, TFTPv6, DNSv6, and ICMPv6

                IPv4-to-IPv6 transition technologies, such as IPv6 manual tunnel, 6to4 tunnel, ISATAP tunnel, GRE tunnel, and auto IPv4-compatible IPv6 tunnel


                Policy-based routing

                Routing Policy


                PIM-DM, PIM-SM, PIM-SSM, MSDP, MBGP, and Any-RP

                IGMP V1/V2/V3 and IGMP V1/V2/V3 snooping

                PIM6-DM, PIM6-SM, and PIM6-SSM

                MLD V1/V2 and MLD V1/V2 snooping

                Multicast policies and Multicast QoS

                Multicast replication on switching fabrics and service cards

                MPLS VPN

                P/PE function in accordance with RFC2547bis

                Three inter-AS MPLS VPN modes: Option 1, Option 2 and Option 3

                Hierarchy of PE (HoPE)

                Multi-role host


                Distributed multicast VPN


                Standard and extended ACLs

                Ingress and egress ACLs

                VLAN ACLs

                Global ACLs


                Diff-Serv QoS


                Traffic policing

                Traffic shaping

                Congestion avoidance

                Priority marking and remarking

                802.1p, TOS, DSCP, and EXP priority mapping



                Support OPENFLOW 1.3 standard

                Support multi-controller (EQUAL mode, standby mode)

                Support multi-table line

                Support Group table

                Support Meter


                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


                Independent switching fabric modules

                1+1 redundancy or key components such as MPUs and power modules

                N+1 redundancy for switching fabric modules

                Passive backplane

                CLOS+ midplane free design (12500X-AF)

                Hot swapping for all components

                Real-time data backup on active/standby MPUs

                Hot patching

                NSR/GR for OSFP/BGP/IS-IS/RSVP

                Port aggregation and multi-card link aggregation

                BFD for VRRP/BGP/IS-IS/OSPF/RSVP/static routing, with a failover time less than 50 milliseconds

                IP FRR and TE FRR with a switchover time less than 50 millisecond


                Hierarchical user management and password protection


                FTP login controlled by IP addresses

                Basic and advanced ACLs for packet filtering

                Protection against ARP, unknown multicast packets, broadcast packets, unknown unicast packets, local network scanning packets, packets with TT=1, and protocol packets attacks

                MAC address control and IP+MAC binding



                Portal authentication and RADIUS authentication

                OSPF, RIPv2, BGPv4 pain text and MD5 authentication

                Secure network management via SNMPv3 and SSHv2

                Broadcast packet suppression

                Active/standby data backup

                System management

                Command line configuration via console/AUX Modem/Tenet/SSH2.0

                File uploading and downloading via FTP, TFTP, Xmodem, and SFTP

                SNMP V1/V2/V3

                RMON and groups 1, 2, 3 and 9

                NTP clocks

                Network Quality Analyzer (NQA)

                Fault alarm and automatic fault recovery

                System logs


                Operating temperature: 0°C to 40°C (32°F to 104°F)

                Storage temperature: -40°C to 70°C (-40°F to 158°F)


                5% to 95% (non-condensing)

                Environmental protection

                WEEE and RoHS


                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


                FCC Part 15 (CFR 47) CLASS A

                ICES-003 CLASS A

                VCCI CISPR 32 CLASS A

                CISPR 22 CLASS A

                EN 55022 CLASS A

                AS/NZS CISPR22 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

                Product ID

                Product Description


                H3C S12504X-AF Ethernet Switch Host


                H3C S12508X-AF Ethernet Switch Host


                H3C S12516X-AF Ethernet Switch Host


                H3C S12504X-AF Supervisor Engine Module


                H3C S12504X-AF Supervisor Engine Unit


                H3C S12500X-AF Supervisor Engine Module


                H3C S12500X-AF Supervisor Engine Unit


                H3C S12504X-AF Fabric Module,Type H(Class D)


                Switching Fabric Module For S12508X-AF,Type H(Class C)


                H3C S12508X-AF Fabric Module,Type H(Class D)


                Switching Fabric Module For S12508X-AF,Type H(Class E)


                H3C S12516X-AF Fabric Module,Type H(Class C)


                H3C S12516X-AF Fabric Module,Type H(Class C+)


                H3C S12516X-AF Fabric Module,Type H(Class E)


                H3C S12500X-AF 18-PORT 100GBASE Ethernet Optical Interface(QSFP28)/36-Port 40GBASE Ethernet Optical Interface Module(QSFP+)(HF)


                H3C S12500X-AF 48-Port 10GBASE Ethernet Optical Interface Module(SFP+,LC)(HF)


                H3C S12500X-AF 18-Port 100GBASE (QSFP28)/36-Port 40GBASE Ethernet Optical Interface Module (QSFP+)(HB)


                H3C S12500X-AF 24-Port 10GBASE Ethernet Optical Interface(SFP+,LC)+4-Port 40GBASE Ethernet Optical Interface Module(QSFP+)(HB),With 1 Expansion Slot


                H3C S12500X-AF 36-Port 100GBASE Ethernet Optical Interface Module(QSFP28)(HB)


                H3C S12500X-AF 36-Port 40GBASE Ethernet Optical Interface Module(QSFP+)(HB)


                H3C S12500X-AF 48-Port 10GBASE Ethernet Optical Interface Module(SFP+,LC)(HB)


                H3C S12500X-AF 48-Port 40GBASE Ethernet Optical Interface Module(QSFP+)(HB)


                H3C S12500X-AF 48-Port 100GBASE Ethernet Optical Interface Module(QSFP28)(HB)


                H3C S12500X-AF 6-Port 100GBASE Ethernet Optical Interface(QSFP28)/12-Port 40GBASE Ethernet Optical Interface Module(QSFP+)(HB)


                H3C S12500X-AF,48-Port 10G BASE Ethernet Optical Interface(SFP+,LC)+2-Port 100GBASE Ethernet Optical Interface Module(QSFP28)(HB)


                16 Fabric Blank Filler Panel


                08 Fabric Blank Filler Panel


                04 Fabric Blank Filler Panel


                H3C S12516X-AF Ethernet Switch Fan Module


                H3C S12508X-AF Ethernet Switch Fan Module


                H3C S12504X-AF Ethernet Switch Fan Module


                H3C S12516X-AF Ethernet Switch High Speed Fan Module


                H3C S12508X-AF Ethernet Switch High Speed Fan Module


                H3C S12504X-AF Ethernet Switch High Power Fan Module


                AC Power Module,2400W


                DC Power Module,2400W


                3000W AC Power Supply Module


                3000W AC & 240V-380V HVDC Power Supply

                Are you an H3C partner? Log in to see additional resources.
                You can find excellent H3C partners, or you can become one of them to build a
                partnership with H3C and share success together.